Operation Instructions DHA-80 DMCU Hxx.38

DIGITEL Elektronik AGAlte Gasse 18CH-8604 HegnauTel.: +41 (44) 908 20 30

DIGITEL Elektronik GmbHIllstraße 30A-6706 BürsTel.: +43 (5552) 67850

[email protected]

DIGITEL High Volume Aerosol SamplerDHA-80 in field housing

DHA-80 in mounting rack 19”DHA-80 in box housing

Manual Version Hxx.38

May 2009

Technisches Büro für DigitalelektronikElektronischer ApparatebauMessgeräte für Umweltschutz

Wir bauen seit 1970 Präzisions-Sammler für Staub, Gas und Regen.

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2DIGITEL Elektronik AGAlte Gasse 18CH-8604 HegnauTel.: +41 (44) 908 20 30


[email protected]

Copyright© 1995 – 2009by DIGITEL Elektronik GmbHIllstraße 30A-6713 BÜRS

Tel. 0043 (5552) 67850/ Fax : Ext. -4e-mail: [email protected]

Operation instructions, manuals and software are protected by copyright. All rights reserved. Reproduction, copying, translating, converting inany electronic medium or in any machine-readable form in whole or in part is not permitted. An exception applies to preparation of back-upcopy of software for own use, as far as it is technically possible and recommended by us. Breaching handling binds to paying damages.

WarrantyClaims against the Digitel Elektronik AG or Digitel Elektronik GmbH in relation to the hardware and/or software products described in thismanual are governed exclusively by provisions of the Warranty terms. Excessive claims are excluded, particularly Digitel assumes no warrantyfor correctness of this manual. Amendments are reserved, while they may be made without any previous notice any time. The current version isavailable on our homepage www.digitel-ag.com at docu/download.

Trade marksWithout being listed separately, throughout this manual, registered trade marks and trade names are referred to, in particular, those ofMicrosoft Corporation.

AuthorAufschnaiter Thomasemail: [email protected]

Text processed withWord 7.0, Microsoft

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1 Table of contents1 Table of contents 32 Table of figures 43 Introduction 53.1 Safety instructions 53.2 Proper use 53.3 Target group 53.4 Abbreviations 53.5 Typographic conventions 63.6 Contact consulting 64 System description 64.1 System overview 64.1.1 Connections 64.2 Operating mode 74.3 Assembly 74.3.1 Transport 74.3.2 Field installation 74.4 Consumables 84.4.1 Filter paper 84.4.2 Thermo-printer paper 84.4.3 Sealing rings 84.4.4 Fuses 84.4.5 Mains cable 84.4.6 Grease for sampling heads (impactors) 84.5 Maintenance 84.5.1 Cleaning 84.5.2 Exchange of sealing rings 94.5.3 Tightness test 94.5.4 Dusty round filter homogeneous deposit 94.5.5 Blower 95 Controls 105.1 Front plate control section 115.1.1 Section automatic filter changer 115.1.2 Panel suction blower 125.1.3 Panel power supply 125.1.4 Panel Microprocessor control 126 Function description 136.1 Status messages 136.1.1 „Last filter in service“ 136.1.2 Remote control 146.2 Failure indication messages 146.3 Status change 157 Operation 197.1 Operation modes 197.2 Filter Preparation 197.2.1 Setting of operation status 197.3 Flow calibration 197.3.1 General information 197.3.2 Calculation 207.3.3 Error estimates 217.3.4 Performing calibration 227.3.5 Preparation for calibration 227.3.6 Start calibration 227.3.7 Logging of calibration 247.4 Meaning of abbreviations: 247.4.1 Determination of standard and operation

volumes 258 Programming 268.1 Using the key pad 268.1.1 Programming, using key pad and display 268.2 Status 268.2.1 Program start 27

8.2.2 Program start with cartridge changer 278.2.3 Finish program: 298.2.4 Input of parameter figures 298.2.5 Date/time 308.2.6 Period setting 308.2.7 Setting of operation mode 308.2.8 Software version 378.2.9 Mode printing 378.2.10 Default (factory setting) 378.2.11 Language 378.3 Record 378.3.1 Display record 378.3.2 Searching for record entry 378.3.3 Print record entry: 378.3.4 Store record entry : 388.3.5 Delete record 389 Sampling probe PM10 and PM2,5 399.1 Separation performance 409.2 Operation/maintenance 4210 Failures/troubleshooting 4310.1 Volume flow functional circuit 4310.1.1 Blower does not run up after switching the

sampler on. 4310.1.2 Changing mechanism function circuit 4311 Application examples 4411.1 Wind-controlled sampling 4412 Communication 4512.1 D-Sub-9 Pin allocation (terminal interface) 4512.2 Digitel protocol 4512.2.1 List of control commands 4512.2.2 Interface format 4512.2.3 Control commands description 4512.3 Bayern-Hessen protocol 4712.4 AK-Protocol 4813 Cartridge changer 5013.1 Cartridge changing simultaneously with

filter changing: 5013.1.1 Continuous operation 5013.1.2 Option "continue program" 5013.2 Timed cartridge changing 5014 Data recording with USB drive 5114.1 Storing of data on the USB drive 5114.2 Removal of the USB-drive 5114.3 Structure of the data files on the USB-drive 5114.3.1 File name 5115 Remote DHA-80 via the Internet: 5215.1 FTP - server 5215.1.1 Dial-up 5215.1.2 Breaking off connection 5215.1.3 Contents of the FTP - server index 5215.2 HTTP - Server 5315.2.1 Dial-up 5315.2.2 Remote control via HTTP 5415.3 Pressure / temperature correction table 5516 Technical data 5617 Dimension drawings 5717.1 DHA-80 in field housing 5717.2 DHA-80 in 19”-housing 5818 Appendix 5918.1 Wiring diagram DHA-80 5918.2 short messages (applied abbreviations) 6018.3 Structure of menu 6118.4 EC-Declaration of conformity 6319 INDEX 65

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2 Table of figuresPicture 1: DHA-80 block diagram 7Picture 2: Front panel with control elements 10Picture 3: Display and control elements automatic

filter changer 10Picture 4: Display and control elements suction blower 10Picture 5: Display and control elements automatic

filter changer 11Picture 6: Display and control elements µP-control 11Figure 7: DPM10/30/00 Plan 39Figure 8: DPM10/30/00 pre-separation performance 40Figure 9: DPM2.5/30/00 pre-separation performance 41Figure 10: Pressure and temperature correction table 55Figure 11: Dimension drawing field housing DHA-80 57Figure 12: Dimension drawing DHA-80 mounting rack 19" 58Figure 13: Wiring diagram DHA-80 59Figure 14: Structure of menu 62

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3 IntroductionThis user manual contains complete information concerningoperation, assembly and putting Digitel High Volume SamplersDHA-80 under operation.Please, read carefully safety instructions before putting it underoperation.

3.1 Safety instructionsPlease, adhere to the following safety instructions, assemblyinstructions (Chapter 3.3) and maintenance instruction (Chapter3.5). Failure to adhere to these instructions or improperinstallation and instrument operation may imperil your safety orresult in damage of the instrument and neighbouring equipment.The dust particle sampler electric connection should beperformed according to provisions of DIN VDE 0100 and itsapplicable special provisions. In particular, the principles shouldbe followed as listed below:-box earthing ;-preparation of protective insulated, waterproof power supply;-equipment of the mains connection with FI switch with I(DN) <=30 mA.In case of lack of expertise, the installation is required toproceed by a professional electrician.In order to ensure protection for over-voltage due toatmospheric discharge, follow DIN VDE 0100 part 443. If thefield instrument is connected to a remote measurement boothvia a communication line, e.g. for status inquiries or for remotecontrol, the communication line shielding and earthing of the lineshield has to be abided.-When using roof bushings, the steps have to be followed aslisted below: set up an electric connection to the air-samplinginlet tube from the roof bushing earthing terminal, in order tolead away possible atmospheric discharges.-If not, discharges can occur via a windmast, as well as lightninghit into the container power supply overhead lines. Forprotection, there should be considered a lightning arrester or aprotective shielding according to DIN VDE 0100 section 18 orpart 443.-Before assembly or disassembly the instrument components,the instrument should be permanently isolated from the powersupply.-Prevent penetration of liquids into the instrument.-Please observe keeping the prescribed power supply voltagevalue.-Observe correct fusing (10 A) of the power supply. Beforeswitching the instrument on, make sure all connectors areplugged in a correct manner.-Except for interventions explicitly provided in the manual, nevertry to repair the instrument on your own. Otherwise, you areexposed to get into contact with parts under the mains voltage.All repairs may only be carried out by expert staff.-Only genuine Digitel pre-separators are allowed to beconnected to the connector for pre-separator heating. Uponapplying unauthorised pre-separators, burns may occur upontouching a pre-separator due to its overheating.-Replacement of defective fuses in the instrument can be carriedout only by trained experts. Mind, that only fuse typesauthorised by Digitel are allowed to be applied (see chapter3.4.4. If so, get the information directly from Digitel or call acompetent local branch-office).-The instrument should be isolated from the mains and handedover to a service engineer in following cases:-if a mains cable or a plug is worn or damaged;-if the instrument, despite following the stated operationinstructions, does not properly work. Use only those controlsreferred to in the manual, as improper instrument operation maycause damages;-if the instrument fell down or the case is damaged;

-if the instrument shows conspicuous deviations from normaloperation.-Ensure that the instrument to be permanently closed duringunattended sampling period.-If you need any assistance, please, do not hesitate to contactus. We would be pleased to advise you.

3.2 Proper use-The instrument is designed for industrial use.-The instrument is built-up in compliance with all applicablestate-of-the-art and safety/technical standards. Nevertheless,the use of the instrument can still endanger the instrument itselfor other valuable things.-The instrument meets the EMC requirements (electromagneticcompatibility) directives and harmonised European standards.Any variation of the system may affect EMC behaviour.It is an A-class equipment. This equipment may induce high-frequency interference in a residential area. In this case, theoperator might be required to take appropriate measures.

3.3 Target group-All designing, programming, installing works, initiation,operation and maintenance in relation to the sampling systemshall only be carried out by trained staff (e.g. electricians,electrical engineers).-Designing and programming staff should be familiar with safetyconcepts of automation technology.-Operators have to be instructed on handling the instrument andknow the operation instructions.-The staff in charge of installation, initiation and maintenanceshould have professional background to be authorised tointervene in automation systems.

3.4 Abbreviations

CM Correction factor for air flow through the filter(related to an average air pressure and an averageair temperature in the measurement tube during thesampling period);

Cs Correction factor for air flow on the measurementtube related to the set standard conditions(standard air pressure and standard airtemperature);

CA Correction factor for air flow on a pre-separator(related to an average air pressure before and aftersampling and to an average temperature on themeasurement tube - 3 K during sampling period.Calculation of this correction factor is based onsimplified assumptions, whereby smaller deviationsfrom the actual correction factor on the air inlet canoccur (see the Chapter 7.4 Flow calibration)).

VM Air volume transported through the filter during thesampling period (related to an average air pressureand to the average air temperature in themeasurement tube during the sampling period);

Vs Air volume transported through the filter during thesampling period (related to the set standardconditions);

VA Air volume transported through the pre-separatorduring the sampling period (related to the averageair pressure before and after sampling and to theaverage air temperature in the measurement tube -3 K during the sampling period of time. Calculationof this volume is based on a simplified assumption,whereby small deviations from the current

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transported volume can occur at the air inlet (seethe Chapter 7.4 Flow calibration));

p (uncal) Non-calibrated air pressure measured by themeasurement system;

pM Actual air pressure by the measurement system;paM Average air pressure by the measurement system

during the sampling period;ps Standard air pressure (the air pressure to which

output of values for cs and Vs have to be related);TM Current air temperature on the measurement

system;TaM Average air temperature in the measurement system

during the sampling period;Ts Standard air temperature (the air temperature to

which output of values for cs and Vs have to berelated);

PA Current air pressure at the air inlet (operationpressure)

PaA Average air pressure at the air inlet during thesampling period (average operating pressure)

TA Current temperature at the air inlet (operationtemperature)

TaA Average temperature at the air inlet during the thesampling period (average operation temperature)

p/T; Air pressure/temperatureHVS High Volume Sampler

3.5 Typographic conventionsText parts in Courier New without a framework show athermo-printer, USB-drive or serial interface outputExample:

Fr 01.05.09 11:02:47Work

Text parts in Courier New with a framework show aintegrated display output.Example:

Fr 01.05.09 11:02:50

Work 01440 00547 954 mbar 23,7 °C

3.6 Contact consultingIn case of any questions concerning the Digitel High Vol samplerDHA-80 please contact the responsible of the Digitelrepresentation office or apply directly to one of Digitel branch-offices. Postal addresses, phone and fax numbers as well as e-mail are shown on the cover page.

4 System description

4.1 System overviewDigitel high-volume samplers DHA-80 and DHA-80 in 19”-housing are parts of systems to sample dust and aerosolparticles for later assessment and analysis. The sampleroperation range in standard execution is 420 to 600 l/ resp. 25 to36 m³/h. The system’s usual designation is „High VolumeSampler“.Various types of samplers are available from differentapplications. Generally, they differ by the number of processedfilters and by the type of logging failure indication and status

messages as well as by the type of remote control via variousinterface protocols.A survey of available types is shown in the chart of chapter 13.

Airborne-dust parts in the sampled air are separated onto 150mm diameter filters. The flown filter diameter is 140 mm.Sequent gravimetric and analytical analysis could be conducteddepending upon the pollutants of interest. Filter material andstructure selection (deep filters, porous filters, glass fibres, silicafibres, pulp, Teflon, porosity....) will depend on the analysispurpose. The filter conditioning is important in order to achievereproducible results.

DHA-80 has a container of 15 filters stretched in filterholders.The filters are changed automatically to the flow position at thepre-set time.A flow meter controls the selected air flow rate. This valueshould be calibrated first at the beginning of a measurementsession, using a gasmeter or a secondary standard, e.g. anadditional flow meter. During air sampling, the blower flow rate isdynamically controlled, so that this value is kept at goodreproducibility and at long-term stability despite the depositedfilter flow resistance and the sampled ambient airpressure/temperature variation.

An integrated microprocessor unit controls the filter changes atthe exact preset time and collects all relevant data and events.Hereby the air quantity flowing through the filter is defined withhigh accuracy.

All mechanical components of the changing automatics as wellas the units needed for measurement as sampling probe,pipeline, flow chamber and filter holder, have been improved:they are coated with highly corrosion-resistant and extremelysmooth „Ematal“.

For total suspended particulates (TSP) sampling, there are twodifferently designed sampling probes available:-a cylinder probe (EMPA/UBA probe); and-a probe of „open ring slot“ according to VDI as described inGMBI 1983 regarding non-fractionated dust sampling.

Sampling probes PM10/PM2.5 are designed as single-stageimpactors. They are intended for operational/volume flow of 30m³ resp. 500 l per hour

Sampling probes PM1 are designed as double-stage impactors.They are designed for operational volume flow of 30 m³ resp.500 l per hour.

Various remote-control interfaces are built in for operation inautomated measurement networks.The high-volume samplers Digitel DHA-80 are described in theVDI directive No. VDI 2463, sheet 11.

4.1.1 Connections

4.1.1.1 DHA-80

The standard execution of DHA-80 has an option for a serialinterface (RS-232C) next to the power-supply connector (3-poleinstrument plug according to IEC 320). The connector is placedin the compartment of the filter container at the side wall. For pinallocation see 11.1 „Pin allocation of D-Sub-9 (terminalinterface)“.A connection to a PC can be made via a commercially availablezero-mode cable (crossed cable). For cable lengths andinstallation requirements, please, adhere to the generalspecifications RS-232C.As an option, DHA-80 can be equipped with meteorological datacollection. Hereby it is necessary to build in a water-proof plug

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on the side wall of DHA-80 beneath the mains bushing. For pinallocation see 15.5 „Interconnection rules for windmeasurement“. For pin allocation see 11.1. „Pin allocation of D-Sub-9 (terminal interface)“.

4.1.1.2 DHA-80 in 19”-housing

The standard type DHA-80 in 19”-housing has a connectionoption for serial interface (RS-232C) next to the power-supplyconnector (3-pole instrument plug according to IEC 320). Theconnector is placed in the compartment of the filter container atthe rear wall of the case. For pin allocation see 11.1. „Pinallocation of D-Sub-9 (terminal interface)“.A connection to a PC can be made via a commercially availablezero-mode cable (crossed cable). For cable lengths andinstallation requirements, please, adhere to the generalspecifications RS-232C.The analogue signal of the blower load degree is connected tothe galvanically separated outlets. For pin allocation of ananalogue 50-pin interface see 11.1.The connector for external temperature measurement unit: D-Sub-9. For pin allocation see 11.1

4.2 Operating modeThe below-stated figure no. 1 illustrates the mode of operation.

Figure 1: DHA-80 block diagram

1 Pre-separator2 Separator chamber3 Current filter3a Filter stock3b used filter3c Exchange electronics4 Microprocessor control5 Flow meter5a Flow sensor5b Flow control5c Frequency converter6 Blower7 Noise damper8 Pressure & temperature measurement unit9 Printer interface10 RS-232C Interface11 USB interface12 Wind data interface13 Display

The air is sampled via a sampling probe (1), using a samplingtube, vertically from the top to the bottom through the filter (3)placed in the flowing chamber (2). With DHA-80 the changing offilters is done automatically. After the filter, the transported airquantity is measured using a flow meter with a floater (5). Itsdouble photo-sensor (5a) optically senses the floater position. Inconnection with the control electronics (5b, 5c), the capacity ofthe pump (6) is adapted to the rpm control, so that the airquantity keeps the set-point value.Air pressure and temperature are measured upstream the flowmeter(8) and continuously averaged by the controller. A real-timeprotocol states sampling volumes yielding from the samplingtime and controlled volume flow as the core information. The airis released from the instrument with reduced noise through anoise baffle (7).The microprocessor control provides a RS-232C printerinterface (9), a RS-232C host-interface (10), an interface for theUSB-drive (11) and an interface for the external wind data (12) .

4.3 Assembly

4.3.1 Transport

In general, the instrument should be transported in verticalposition.Digitel DHA-80 is provided with two handles (sunk on each sideof the case) and two rollers. The instrument can be slipped orpulled by tilting it slightly backwards on a smooth compactedground (e.g. asphalt, concrete) on the rollers using grips. Unlessrolling is possible using the integrated rollers, the instrument can

be lifted and carried using both the handles.Don’t lift he instrument by using the openinstrument door as a handle.

4.3.2 Field installation

Digitel DHA-80 is equipped with a protection class IP54 fieldcase. For this reason it is immediately suitable for direct open-airinstallation under European standard weather conditions.To avoid collection of rainwater or ice on the instrument frontdoor upper edge, a water beak (optional) should be installed.In the field, the instrument should be placed in such a way thatpenetration of surface water in case of heavy rain or snowmelting into the instrument from the ground upwards isprevented.The sampler has to be secured against tilting. In mobileapplications, an extension of sufficient stiffness of one metrelong instrument-feet is advisable. For this purpose, e.g. two

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rectangular tubes can be screwed on the short feet of theinstrument.

If stationary operation is planned, the sampler should beinstalled higher on a concry base (e.g. width = 600 mmx depth = 300 mm). The door opening should not facethe weather side and the sampler feet should be

screwed using two angle sections with a base.If sampling is discontinued for a long term during winteroperation, a case heater (optional) should be installed to preventicing of the automatics.

Digitel aerosol samplers should be connected to the mains of 1x 230 V/50 Hz (at least 3 x 1.0 mm2, 10 A, 250 V). The maximuminput current is 7 A without a probe heater (max. 160 W) andcase heater (approx. 60 W). The increased input power atrunning up the blower is avoided by a soft run-up. For electricconnection of the aerosol sampler see 2.1 „Safety instructions“.Digitel DHA-80 in 19”-housing should be installed in aninstrument rack, so that an intermediate space of 17 cm is leftbetween the sampler upper edge and the rack upper edge.The delivered fixing beam should be screwed on the rack upperedge. Its muffs connect the intermediate tube leading to thesampler with the tube leading from the roof of the container,forming a connection to the sampling probe.The sampled air sample leaves the sampler via a tube sleeve(diameter 42/38 mm, length = 25 mm) at its rear wall. Totransport an air sample from the container interior to the openair, the appropriate hose can be connected.

WARNINGIn any case, the instrument should be installed or builtin, in such a way that the instrument can becontinuously disconnected from the mains easily by

pulling out the supply cable at any time. The main switch on thefront wall does not assure complete instrument electricalisolation!

4.4 Consumables

4.4.1 Filter paper

Round filter of 150 mm diameterSelection of filter material and filter structure (deep filters, porousfilters, glass fibres, quartz fibres, pulp, Teflon, porosity...)depends on the aim of examination.

4.4.2 Thermo-printer paper

Thermo-rolls size: 57 x 25 x 10 mm

4.4.3 Sealing rings

Sealing rings with a special finish and various sizes are used forsealing at various places in the instrument. If you find that theinstrument tightness is not satisfactory any more or the surfaceof sealing rings shows small cracks or other damages, theyshould be replaced. You can get individual sealing rings orsealing ring sets from us.

4.4.4 Fuses

WARNING:Fuse replacement can only be performed by anauthorised specialist. Before opening the instrument, itshould be off power. Further, it is necessary to assure

that only the fuse types authorised by Digitel are used. In case ofnecessity, please, contact Digitel or a responsible localrepresentation branch-office directly.In the supply unit, two fuses can be replaced:Main heating: Schurter type FSD 5 x 20; 1.2 AT, rated voltage250 V;

Controller supply unit: Schurter type FSD 5 x 20; 100 mAT, ratedvoltage 250 V;

4.4.5 Mains cable

WARNING:Use only mains cable supplied by our company or an equivalentmains or extension cable complying with applicable standards.When using the rolled extension cable, make sure that the cableis completely unwound from the cable reel. Mind: cable reelswithout a thermo-fuse have a risk of fire because of strongheating of the wound-up cable!Use a Euro-instrument cable with SCHUKO-plug at least 3 x 1.0mm², 10 A only.

4.4.6 Grease for sampling heads(impactors)

As grease, you can use, for example: BAYSILON paste, high-vacuum grease, medium-viscous (35 g tube) and silicon high-vacuum grease medium Merck 100 g,CAS Nb. 107922.

4.5 MaintenanceDigitel aerosol samplers need minimum maintenance. However,depending on the degree of air pollution and climatic load uponinstallation site, inspection of the sampler associated withcleaning is necessary.In particular, the following activities shall be performed:

4.5.1 Cleaning

High-volume samplers must be cleaned on regular basis.Cleaning intervals strongly depend on particulars of installationsite and they have to be determined by the operator. They mayrange from one month up to a year.During cleaning, the instrument should be off power.To clean the instrument, a dry cloth should be used. At heavycontamination, the cloth should be wetted with a commercialwindow cleaning agent. Make sure that the instrument is driedup before putting under operation again.Avoid using solving and scrubbing cleaning products!

The flow meter glass tube has to be visually inspected.In case of a broken filter or negligent sampler operationwithout a filter inserted, contamination can also occur.

In case of any doubt, the tube has to be removed and cleaned.Due to its difficult accessibility, the upper part of the funnel-shaped flow chamber located before the filter, can only becleaned in combination with possible changer apparatus serviceworks. As this section of air-sample path shows a much largerinner diameter, as a rule, it is less affected by deposits.The air inlet tube interior has to be inspected for wall depositsand in case of doubt, cleaned, using a cloth. As a cleaningliquid, we recommend water and/or spirits.TSP sampling probes („open ring-slot“ according to VDE or„EMPA/UBA“ - cylindrical probes) have to be checked for dustdeposits and cleaned, if possible. Normally cleaning with the useof a wet cloth is sufficient. Probes PM10, PM 2.5 and PM1.To avoid effects of released separated rough dust particles, thecannon surface of the impactor plate has to be permanentlycovered with a thin fat layer. It has to be renewed periodically.Thereby the life cycle depends upon the proportion of roughdust in the sampled exterior air. It is recommended to clean theimpactor plate after 14 sampling days, by the time the averagetotal dust volume (TSP) on the installation side is approx. 70 to80 µg/m³. With lower TSP, the cleaning interval can be longer.You can extend the cleaning interval results by rotating of themoveable impactor plate resting on the heating holder by about15° (approx. 2 cm). Acceleration nozzles then point at the

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„clean“ areas between rough dust deposit settled in a circularform of the previous sampling operation.The impactor plate can be removed simply after opening theprobe upper part. It has to be cleaned with a clean cloth and itscannon surface has to be greased. A 5 cm long band of greaseshould be equally spread on the area, using a spatula. To relievethis maintenance in the field, the impactor plate can be replacedby another plate prepared in the laboratory.Acceleration nozzles, probe casing liners, as well as liner behindthe impactor plate with the above-mentioned TSP conditionhave to be cleaned after 30 flowing days.In case of longer sampling in foggy environment it isrecommendable to inspect the impactor plate for watercondensate.

4.5.2 Exchange of sealing rings

The transition areas between the above-stated path separatesection of the air probes are equipped with sealing rings.Special attention has to be paid to the sealing ring of 43 x 3 mmat the sampler air inlet muffle, as well as to the glassmeasurement tube sealing rings (50.4 x 3.53 mm). These sealingrings have to be checked and possibly replaced after 2 to 3years of operation.The sealing ring of 150 x 3 mm at the bottom flange of upperpart of the flowing chamber should be inspected by a DIGITELservice engineer and possibly replaced after 2 to 3 years ofoperation.Sealing rings (150 x 3 mm) at the filter holder bottom part haveto be equipped with an anti-friction layer. They have to beregularly checked when a new filter is inserted and rubbed,using a dry cloth. When this layer is worn out or in case ofincreasing sticking tendency, it should be renewed. Werecommend to replace these sealing rings annually. Moreinformation you can find on our homepage under Maintenancebooklet.

4.5.3 Tightness test

Checking of volume-flow calibrationBlower charge and the required convertor frequency indicatedfor a particular flow rate and filter type have to be noted at thebeginning of instrument operation. Sudden insufficient blower

capacity under the same conditions is caused by leakage in theair-sample path (after the filter).Another very simple option for testing the sampler tightnessconsists in closing the sampler at the air inlet muffle with air inlettube removed or, as the case may be, by inserting an air-impenetrable cardboard instead of the filter paper to the filterholder and switching the blower on. In both cases, the flowmeter floater must not be lifted from its resting position at thebottom of the measurement tube. Hereby the blower must berun up to its maximum capacity in order to reach the overloadcondition.Checking of the volume flow simultaneously represents a checkof tightness. These procedures have to be taken about everytwo months.The second flow meter of the same type as in the sampler usedto check the volume flow in the sampler itself and has to beinstalled onto the sampler sampling probe as „transferstandard“. With a new round filter paper inserted, positions offloaters are compared by switching the blower on. Withdeviations of the set point originally calibrated on the flow meterof the sampler, checking of tightness should be performed.

4.5.4 Dusty round filter homogeneousdeposit

Upon removing dusty filter papers or during weighing, filtershave to be subject to visual inspection for homogeneousdeposits. Drop-like spots in the filter centre, as a rule, indicateinoperable probe heating, or/and a defective air inlet mufflesealing ring. Bright spots on the filter paper rim are attributableto defective sealing of the flowing chamber upper part with thefilter holder upper surface (service works are definitely required!).

4.5.5 Blower

The applied blower has the average MTBF (average timebetween failures) of 36 000 hours. It is maintenance-free.However, for instruments under operation for longer than twoyears, an occasional acoustic inspection of the blower by anopen room blower is recommended to prevent a possible blowerblocking.Special attention has to be paid to excessive, unusual noisesgenerated by the blower (scrubbing, screeching).

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5 ControlsControls are ordered in a sequence according to their functional relevance on the front panel.

Picture 2: Front panel with control elements

Status-LEDs:End of programLast filter in serviceChanger in operationChanger jammedChanger switched offRemote control

Switch/button:StartManual changeChanger off

Switch changer off before turning knob

Picture 3: Display and control elements automatic filter changer

Display blower load

Display operating time

Status-LEDs:Blower onBlower overloadedBlower switched off

Switch: blower off

Picture 4: Display and control elements suction blower

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Status-LEDs:FeederPower onInlet heating activ

Switch:Main switch power supply

Potentiometer for heating capacity

Picture 5: Display and control elements automatic filter changer Model/Serial number

LCD: 20x4 characters, backlitDate and timeStatus/time set / work timeFailure indication and status information

Keypad: 4x4 keys

Picture 6: Display and control elements µP-control

5.1 Front plate control section

5.1.1 Section automatic filter changer

Changing automatic instrumentIn the section „Filter changer“ the exchange of the filters ismonitored and it is possible to intervene in the changingmanually.Usually the filter remains in the filter sleeve after completedflowing until a follow-up pause period elapses and the systemreturns to working status. Only then a new filter is changed fromthe container stack. This exchange occurs already during aworking period.

„Start“ keyBy pressing this key an immediate program start is activated, i.e.the control switches to the working status and starts the pre-programmed time intervals processing (working and pauseperiods) until the status „End of program“ is achieved.By starting the program, all failure indication displays are reset(„Blower overloaded“ and „Changer jammed“).Ensure that at starting up the program, no filter exchange isperformed, even if the control was previously in the pause status(normally filter exchange is performed upon switching from thepause status to the working status).

Key „Manual change“The function of this key is only possible if the rocker switch„Changer off“ is activated. As long as the key is pushed, thechanger motor is controlled and so the changing mechanic ismoving.

Status display „Changer switched off“The status display flashes when the rocker switch „Changer off“is activated.Changer handwheelThe changer handwheel enables manual movement of exchangemechanism. Therefore, it is necessary to activate the rockerswitch „Changer off“ first.

Status display „End of program“The status display flashes when the flowing time (working period)elapses for the last inserted filter (the filter container is empty)and the control changes into the pause status. Control remains inthis status (independently of the preset pause time) until newfilters are inserted into the filter container (immediately after that,the control performs filter exchange and switches to the workingstatus, when the preset pause time is achieved) or the program isrestarted. It should be ensured that the switching point can bedelayed by the automated restarting of this program. This occurswhen the control has been in the pause status for a longer timethan set by the programmed pause period.

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Status display „Last filter in service“The status display flashes when there isn’t any filter in the filtercontainer.

Status display „Changer in operation“The status display is lit when the changer motor is controlled.During this time the blower should be switched off in any case.The control recognises whether a new filter was really taken fromthe filter container during filter exchange or not. If no filter fallsinto the changing fork from the filter (magazine) container (e.g.the filter holders are stuck together), the failure indicationmessage is displayed to the display („no filter change“) andlogged. In this case, all filter holders have to be emptied from thecontainer and checked. After recharging the container, theprogram has to be restarted in order to delete the failureindication message.

Status display „Changer jammed“The status display flashes, if the control detects that the changermotor had consumed too much power. In this case, the changermotor is switched off.The cause of the failure could be e.g. that the changingmechanism is stuck due to incorrect filter holder setting or due tofilter paper dropt out from the filter.The control tries to remove the blockage on its own by runningthe periodic changer motor in connection with a flexible clutch toeffect proper filter transport. If a filter exchange is impossibleafter multiple trials, the control remains in the failure indicationstatus „Changer jammed“ with the changer motor switched off.

Rocker switch „Changer off“The automatic control of the motor can be interrupted by usingthe rocker switch „Changer off“, in order to activate the changermechanism manual driving (by controlling the handwheel or thekey „Manual change“).

Status display „Remote control“The status display flashes when the remote control interface isinstalled and activated or the remote control is activated via theRS-232C interface.

5.1.2 Panel suction blower

This panel indicates the blower status.

Analogue indication instrument „Motor load“This indicator indicates the current blower load. At the flow of500 litres per minute and with standard, not coated, glass-fibrefilters, the blower is loaded about 50 %. If the full-scale capacityis exceeded, the HVS switches to the failure indication status“Overload”. Optionally, a parallel 0 V to 10 V recorder output isavailable to log the operating hours and blower loads on thisdisplay (remote control interface).

Operation-hour counter „Motor Operating Time“The counter counts the hours of the running of the suctionblower. The dimension of abrasion of the blower can be derivedfrom the counter status.

Status display „Blower running“The status display is lit, whenthe signal control enables the blower. Blower run-up, however, isaccomplished with a delay of several seconds.During automated filter exchange, the blower is automaticallyswitched off. Hereby the status display is extinguished within thisperiod of time.Note:The rocker switch „Blower off“ has no effect upon the statusdisplay „Blower running“. This signal is generated by a control,while the rocker switch interrupts the signal after the statusdisplay only.

Status display „Blower overloaded“The status display flashes, when the failure indication status“Overload” occurs. In this case, the blower is switched off. Thereare various causes to this failure (e.g. to heavy deposits of filters,moist filters, choosing of an unsuitable filter material...).After approx. 15 seconds the control will switch on the blower. Ifthe failure occurs a second time, the blower is switched off againfor the next 15 minutes. If the failure occurs for the third timeafter new switching on, the blower is switched off and,depending on programming, a filter changing is carried out oryou should wait until the current working period elapses.Independent of the fact that the failure indication status iscorrected or not, the status display flashes until a new filter isinserted, the program is re-started or the power supply isinterrupted.

Rocker switch „Blower off“The blower can be switched off manually, using this rockerswitch. This activity has no impact upon any other operations,especially on the setting of the switching program or automatedfilter switching.During starting up the program, ensure that the rocker switch isnot unintentionally in the position „Blower off“, so that theblower does not run up during starting up the program.

Status display „Blower switched off“The status display is lit when the rocker switch „Blower off“ isactivated.

5.1.3 Panel power supply

In „power supply“ panel, the power connections and the power-supply unit are monitored.

Main switchInput switch for 230 V power supply

Status display „Feeder“The status display is lit as soon as the power supply isconnected to the instrument.

Status display „Power on“The status display is lit as soon as the main switch is placed inthe position „on“ (or „1“) and no failure is shown in the power-supply unit.

„Heater“ controlThis control is able to set the capacity of the heating in thesampling head infinitely variable (0 is off; 9 is the maximumheating capacity).

Status display „Heating“The status display flashes intermittently synchronously with theswitched heating control (it is lit during the heating phase). Theheating of the probe is controlled by means of the setting of thepotentiometer and the working load of the blower. The maximumcapacity will be reached at 100% working load of the blower andthe potentiometer set at "9". At 50% working load and thesetting "9" the heating capacity will be 50% of the maximumvalue. At 50% working load and the setting "5", the value will be25% of the maximum value etc....

5.1.4 Panel Microprocessor control

This module, „µP-control“, is dedicated to the HVS programmingand shows the instrument current status and possible existingfailure indication messages.The display is a four-line , alphanumeric LCD display (20characters pro line, backlit)

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Mo 04.05.09 10:32:17

Work 01440954 mbar

The first line shows the current date and time.Both numbers in the third line are of the following averageings:the left number: a pre-set status time in minutes for the currentstatusthe right number: the time already worked off in minutes for thecurrent status.The fourth line indicates an additional failure indication andstatus information.

Ensure that, in the pause status, the right number (the alreadyworked off time) can be higher than the pre-set status time (theleft number). In this case the program is completed (and nowthere can’t be exchanged any filter) or the changer is blocked.Using this indication, the failure time can be traced back byreverse calculation. If there is no failure indication informationand the programming allows so, the fourth line indicates thecurrent air pressure and current air temperature in themeasurement system.With external pressure and temperature sensor only:This will be cleared by the letter “M” between the pressure andthe temperature display. If a external pressure and temperaturesensor has been installed and if the evaluation of these sensorsis activated, the ambient pressure and ambient temperature willbe shown. (“A between pressure- and temperature display.)Please note, that especially with the blower switched on, thisvalue of the measured air temperature and the measuredpressure differs from the ambient air pressure and ambientemperature significantly. The switch between the display of themeasured air pressure values resp. measured temperature values

and the ambient pressure and ambient temperature values willbe effected by using key “0”.

If in the 4th line additional failure indication messages and statusinformation are shown, the display will switch between thedifferent display information in pulses.

KeypadThe keypad consists of 16 keys. Keys layout is shown in the nextfigure:

1 2 3 F

4 5 6 E

7 8 9 D

A 0 B C

The keys have the following functions:1. figure value „1“, 2 figure value „2“, 3 Figure value „3“ etc.0 figure value „0“, switching function at options (on/off)A Cursor control to the left (corresponds to the arrow key

left on the PC keyboard)B Cursor control to the right (corresponds to the arrow

key right on the PC keyboard)C Enter (corresponds to the Enter key on the PC

keyboard)D Exit (corresponds to the Esc key on the PC keyboard)E Manually (currently not applied)F Menu (displays the main menu)The special keys A to F detailed functions are explained in theChapter on programming of HVS.

6 Function description

6.1 Status messagesPlease read the following text for description concerning thestatus messages which may appear during HVS control and howthey are displayed and logged. The logging (showed below)corresponds to the logging made by an optionally connectableprinter. If no special protocol is programmed for the RS-232Cinterface, in addition to that, the log data will be put out parallelin the same format on the RS-232C interface.The type of logging of the various special protocols can be foundin the annex of this manual.

6.1.1 „Last filter in service“

If the last filter is inserted (the filter container is empty), thefollowing will appear:

Fr 01.05.0911:05:28

Last filter in service

The display shows the status message consisting of four lines.Example:

Fr 01.05.09 11:05:30

Work 01440Last filter

The status message is cancelled, as soon as the new filters areinserted in the container or the program switched to the status„End of program“.If during the running working period no additional filters areinserted, after the elapsing working period, the followingmessage will be displayed:

Sa 02.05.09 11:05:28Pause

Sa 02.05.09 11:05:28End of program

Fr 01.05.09 11:05:30Blower off

Collecttime[min]: 1012,46# Blower on/off : 1paM [mbar]: 929TaM [°C]: 20,0

cM : 1,053cs( 15/1013) : 0,949cA( 17/ 996) : 0,972VM [m³]: 539,268Vs( 15/1013)[m³]: 492,990VA( 17/ 996)[m³]: 497,842at 512 l/min---------------------------

The display shows the status message consisting of four lines.

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Example:

Fr 01.05.09 11:06:30

Pause 00000 00001End of program

The status message is cancelled, if new filters are inserted intothe container (automated restarting with filter exchange) or theprogram is restarted manually.The program remains in the pause status until new filters areinserted and the pause period is elapsed. Then the program willstart automatically a new processing cycle.

Sa 02.05.09 12:05:28Start of program

Sa 02.05.09 12:05:28Work

Sa 02.05.09 12:05:28Filter change

Ensure that by this automatic new start of the program, the pointof exchange can be changed. This occurs when the control wasin the pause status for a longer time than was pre-set.

6.1.2 Remote control

If the remote control (analogue remote control via remote controlconnector or remote control via serial interface) is activated, it islogged as follows:

Fr 01.05.09 11:05:28extern

The display shows the status message consisting of four lines.Example:

Fr 01.05.09 11:05:30

Work 01440 00547Extern

The status message is deleted as soon as remote control isdeactivated.

6.2 Failure indication messagesThe following is a description concerning the HVS control failuresand how are they displayed and logged. The messages providedin the following protocols correspond to those of the optionallyconnectable printer. If there is no special protocol programmedfor the RS-232C interface, in addition to that, the log data will beput out parallel in the same format on the RS-232C interface.You can find the type of logging in various special protocols inthe annex of this manual.

AC Power supply failureAfter a power breakdown, the start and the end of the powersupply is displayed as follows:

Power cut from :Fr 01.05.09 10:56:23until :Fr 01.05.09 11:02:45

If invalid characters (special characters) occur in the date or inthe time, or the date resp. the time indicates an invalid value, itsuggests that the back-up battery is empty. By a power supplybreakdown, the clock module cannot preserve its data! In this

case, the back-up battery should be recharged (switch HVS onfor several hours) or check the battery and the controller fordamages.After the display of the time of breakdown, the actual status ofcontrol will be displayed (working, pause...):

Fr 01.05.09 11:02:47Work

After starting up the control, the basic menu is displayed on thedisplay:

Fr 02.05.09 11:02:50

Work 01440 00547954 mbar 23,7 °C

Overloading without filter exchangeIf a blower overload status is detected, the blower isautomatically switched off and the overload message isdisplayed:

Fr 01.05.09 11:04:12Overload

If the program setting also allows an indication of blower load,switching off the blower is also shown on the display:

Fr 01.05.09 11:04:15Blower off

In this status, upon the first occurrence of overloading, thecontrol remains for several seconds. Upon next occurrence ofthe same filter overloading, the status „Blower off“ remains forapprox. 15 minutes. Then the blower is switched on again.

Fr 01.05.09 11:05:28Blower on

There are three successive attempts to insert the filter during thepre-selected working period. After the third occurrence ofoverloading, the blower will be turned off for 2 hours. Afterwardsthe blower starts again and a new occurrence of overloading willbe handled in the same manner as described above.The display shows a failure indication message consisting of fourlines.Example:

Fr 01.05.09 11:04:50

Work 01440 00547Overload

The failure indication message is cancelled, if a new filter isinserted, the program is restarted or a power breakdown occurs.

Overloading with filter changingIf an overloading status of the blower is detected, the blower isswitched off automatically and an overload message displayed:

Fr 01.05.09 11:04:12Overload

If the program setting also enables to display the blower load,“Blower off” is displayed:

Fr 01.05.09 11:04:15Blower off

At the first occurrence of overloading the control remains in thisstatus for several seconds. Upon the next occurrence of

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overloading with the same filter, the blower is switched off forabout 15 minutes. Then the blower is switched on again. Thewhole process is repeated three times.

Fr 01.05.09 11:05:28Blower on

There are four successive attempts to insert a filter during thepre-selected working period. After the fourth occurrence ofoverloading during a working period, a filter exchange is started.Mind that the minutes display is not reset!

Fr 01.05.09 11:08:23Blower off

Depending upon the program setting, various additionalinformation concerning inserted filters will be displayed, such as:

Collecttime[min]: 1012,46# Blower on/off : 1paM [mbar]: 929TaM [°C]: 20,0cM : 1,053cs( 15/1013) : 0,949cA( 17/ 996) : 0,972VM [m³]: 539,268Vs( 15/1013)[m³]: 492,990VA( 17/ 996)[m³]: 497,842bei 512 l/min---------------------------

Fr 01.05.09 11:08:28Filter change

Now the blower is switched on again and, if the programmingallows so, the message „Blower on“ is displayed after severalseconds (the switch-on point is slightly delayed). The newlyexchanged filter is flown as long as the working period set for thefilter originally processed is achieved.

Fr 01.05.09 11:08:42Blower on

If in case of overloading, the inserted filter is the last one, thecontrol switches the blower off or logs in case of overloading andwaits until the working period elapses.After the working period elapsed, the control will switch into thepause status. The switching of the status and the programending are displayed. The program stays in this status until beingrestarted.

Sa 02.05.09 11:04:28PauseEnd of program

If overloading occurs also with a newly inserted filter, the controlwill try three times to switch the blower off and on. If theoverloading is not removed this way, a filter changing is newlycarried out (inclusive all logs as described above).The display shows a failure indication message consisting of fourlines.Example:

Fr 01.05.09 11:04:50

Work 01440 00547Overload

The failure indication message is cancelled after a new filter isinserted, the program is restarted or if a power breakdownoccurs.

Changer jammedIf the exchange mechanism is jammed (filter exchange cannot becarried out), the control tries on its own to remove the blockage,using the running-up motor of the periodic changer inconnection with a flexible clutch to effect proper filter transport. Ifthe filter exchange is impossible, despite multiple trials, thecontrol remains in the failure indication status „changer locked“with the changer motor switched off.The following failure indication message is displayed:

Fr 01.05.09 11:05:28Changer jammed

In this case, please, check the filters placed in the filter container.Further, you can also change the inserted filters manually, whenyou switch off the filter changing automation and exchange thefilter using a handwheel or a manual starting. Then, in any case,you have to switch on the filter exchange automation again. If theexchange mechanism is not in the final position (filter changed)after switching the automation on, it will get to the final positionautomatically.If you switch off the filter exchange automation during normaloperation, this failure indication message is always shown on thedisplay.

Cartridge changer blocked

If the changer mechanics of the cartridge changer are blocked(cartrige change can not be carried out), the control tries bycyclical starting of the changer motor in connection with anelastic clutch to eliminate the blockage itself. If, in spite of severalattempts, the changing of the cartridges can not be carried out,the control with switched off motor stays at the status “cartridgechanger blocked”. Following failure indication is displayed:

Fr 01.05.09 11:05:28cartridge changer block.

6.3 Status changeStatus changing by the HVS control occurs, if the timer achievesthe pre-set value. The logging, showed below, corresponds tothe logging of the optionally connectable printer. If there is nospecial protocol programmed for the RS-232C interface,additionally, the log data will be put out parallel in the sameformat on the RS-232C interface.You can find the type of logging in various special protocols inthe annex of this manual.

Arbitrary status ⇒ Start timeThe HVS control stays in this operation status, until the pre-setstart time is reached. Hereby, the start time can be determinedfor the period of sampling time (if e.g. sampling of daily sampleshas to be started at midnight). The following logging will bedisplayed:

Fr 01.05.09 11:03:13Wait

The starting point is determined at the menu point „Startingdate/time“ (see the menu structure).

Start date/time1 DD.MM.YY hh:mm:ss 01.05.09 11:03:202 immediately

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In the entry menu for the starting time, it can be selected whethera starting time is to be determined or the program starting is toproceed immediately.If the menu point is opened, the cursor is on figure „1“ in thesecond line. By entering key „1“ or by pressing the enter key (keyC), you get to the third line where you can determine the startingtime now. Starting time input is completed by pressing the enterbutton (key C) and the starting time has been transferred, if thecursor is placed in the one-digit position of the second value.Caused to the data transfer, the display switches to the mainmenu again.After you pressed key „2“ or move to figure „2“ in the fourth linewith the cursor using the cursor key B after opening the menupoint and afterwards pressing the enter button (key C), theprogram is started immediately and the display switches to themain menu.If the control was previously in the working status and the blowerwas switched on, the automatic switching-off of the blower andthe determined values are logged (only if the programmingenables so, too):

Fr 01.05.09 11:04:15Blower off

Collecttime[min]: 1012,46# Blower on/off : 1paM [mbar]: 929TaM [°C]: 20,0cM : 1,053cs( 15/1013) : 0,949cA( 17/ 996) : 0,972VM [m³]: 539,268Vs( 15/1013)[m³]: 492,990VA( 17/ 996)[m³]: 497,842at 512 l/min---------------------------

After reaching the starting time, the program is started upautomatically. No filter exchange is carried out. The programstarts the sampling period using the just inserted filter.

Waiting for starting time ⇒ Work:When the pre-set starting point is achieved, the HVS controlswitches the program status to work, switching the blower on:

Fr 01.05.09 12:00:03Work

When the programming allows to display the blower statusmessage, the following is displayed within several seconds afterthe blower running up:

Fr 01.05.09 12:00:10Blower on

After approx. 1 minute, the current blower load is displayed (if theprogram allows it, as well):

Fr 01.05.09 12:01:23Motor load : 65 %

If the blower load, during operation, is changed by an adjustablevalue (in percentage), the current blower load is displayed again

Fr 01.05.09 18:04:43Motor load [%]: 68

The blower load display is made by measured values slightlyaveraged delayed.In the working status, the basis display shows related timeinformation:

Fr 01.05.09 12:02:50

Work 01440 00002 954 mbar 23,7 °C

When the pre-set working time is reached, the program switchstatus will turn from work to pause.

Work ⇒ PauseWhen the pre-set working time is achieved, the HVS controlswitches the program status to the pause and the blower will beswitched off:

Sa 02.05.09 12:00:00Pause

When the programming activates to display the blower statusmessage and time information, the following log is displayed:

Sa 02.05.09 12:00:05Blower off


Sa 02.05.09 12:00:03

Pause 01440 00000 954 mbar 23,7 °C

Now the HVS control is waiting until the set pause time isreached.

Pause ⇒ WorkWhen the set pause time is reached and the program is notcompleted yet (there are still some filters left in the container), theHVS control switches the program status to work, filter will beexchanged and the blower will be switched on:

Sa 02.05.09 12:00:07Work


When the program activates to display the blower statusmessage, the following is displayed within several seconds afterblower run-up:

Sa 02.05.09 12:00:15Blower on

After approx. 1 minute, the current blower load is displayed (thisprogramming allows it as well):

Sa 02.05.09 12:01:23Motor load [%]: 67

In the working status, the basis display shows the related timeinformation.

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Sa 02.05.09 12:02:50

Work 01440 00002 954 mbar 23,7 °C

Cartridge Change:

Automatic cartridge changeWhen the time of change for the cartridges has come, or thechange of the cartridges takes place simultaneously with thechange of filters, the change of cartridges is carried out asfollowing:

Switch off blower:

Sa 02.05.09 12:00:07Blower off

Carry out cartridge change:

Sa 02.05.09 12:00:10Cartridge change

Release cartridge data:

---------------------------cartridge data:

collecttime [min]: 1012,46# Blower on/off : 1pmM [mbar]: 929TmM [°C]: 20,0kM : 1,053kN( 15/1013) : 0,949kA( 17/ 996) : 0,972VM [m3]: 539,268VN( 15/1013)[m3]: 492,990VA( 17/ 996)[m3]: 497,842at Qscale i. : 512 l/min---------------------------

Switch on the blower:

If the programming allows the display of the blower statusmessage, the blower run-up will be displayed after a fewseconds:

Sa 02.05.09 12:00:15Blower on

After approx. one minute the current blower capacity will bedisplayed ( if this is allowed by the programming):

Sa 02.05.09 12:01:23Motor load : 67 %

In the basic display the current flown cartridge is shown:

Sa 02.05.09 12:02:50Cartridge 2Work 01440 00002 954 mbar 23,7 °C

Manual cartridge change:

A manual filter change can be carried out either by means of aturning knob at the cartridge changer or by means of the µP-control:

Manual operation by means of turning knob:

• Blower off – Switch on position „blower off“• Changer off – Switch on position „changer off“• By means of turning knob change cartridge• Changer off – Switch again in starting position• Blower off – Switch again in starting position• Hand operated by means of µP-control:

Manual operation by means of the µP-control:

1. Finish program:

The nanual change of filters can only be carried out when theprogram is finished.In the basic menu by means of key F (Menu) switch to followingdisplay:

0 status1 start program2 end program3 input parameter

Input „2“ for finishing program

end program ?

0 ... confirm

and confirm with key „0“Then the basic display is shown again.

2. Activate cartridge change

Switch to following display using key “F” (menu):

0 Status1 start program2 change cartridge3 input parameter

Input „2“ for change cartridge

Carry out cartridgeChange?

0 ... confirm

And confirm with key „0“ .Then the basic display is shown again.

Finish program:

The program can be finished in every status:

Switch to the basic menu in following display:using key “F” (menu)

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0 Status1 start program2 end program3 input parameter

Input „2“ for finish program

end program ?

0 ... confirm

And confirm with key „0“ -

All filter and cartridge data are put outAfter that the basic display appears again.

Continue program:

If cartridge change is carried out simultaneously with the changeof filters and the option "cont. cartr. change op. off" is chosen,the program can be continued hand operated.

Switch to following display in the basic menu by means of key“F” (menu):

0 status1 continue prog.2 end program3 input parameter

Input „1“ for continue program

continueprogram ?

0 ... confirm

and confirm with key „0“

The program is enlarged now with one cycle.

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7 Operation

7.1 Operation modesHVS can be operated in two operation modes:- Autonomous operation: The integrated microprocessor control

performs fully automated sampling based on the status timesset. Logging is performed on the printer, on the USB-drive oron the RS232C interface.

- Remote operation: The HVS control is performed via theRS232C interface. Logging is optionally performed on theprinter or similarly on the RS232C interface or on the USB-drive. In this operation mode, time control is carried out by thehost computer. The programmed status times are notconsidered in the HVS.

7.2 Filter PreparationReliable and reproducible measurement results can only beachieved by using filters that are carefully conditioned before andafter sampling.Filters are pre-weighed and provided with a date. In order toenable a checking during the operation by which a correctassignment of filters is possible, the filters are inserted into thefilter holder marked according to respective dates. The springcollar is removed from the filter holder (using pliers) while aTeflon ring is laid on a clean surface by using forceps. New filtersare removed from the filter magazine by using forceps and laidinto the filter holder. Then the Teflon ring should be laid again(using forceps) on the ring and the spring collar is set usingpliers. Now the filter holder is ready for transport to the sampler.During the filter transport, no impurities should get onto the filter(therefore refer to standard EN 12341 annex C).The deposited filter is removed from the filter holder, usingforceps, and inserted into a simply folded parchment envelope.Warning!

It should be noted that a possible labelling of a filterholder is only permitted on its front, using a marker.Any inscription on the filter holder on the upper or

bottom sides, as well as sticking labels (on the filter holder entiresurface) might cause problems with filter exchange and isprohibited!Please mind that no sealing ring (on the filter holder and in theflowing chamber) gets in touch with inscriptions. The solvents,applied in various markers or pens, destroy the applied sealingrings! Moreover, paint residuals may result in bonding the sealingrings!

7.2.1 Setting of operation status

Start operation or restart sampling instrument

1. Main switch in the position „On“;2. Rocker switch „Blower off“ in the position „off“;3. Rocker switch „Changer off“ in the position „off“;4. To perform setting of required status times (“Work”,

“Pause”);5. To perform settings of required general operation

parameters (filter change at overloading, stop time atpower breakdown, logging of status and failure indicationmessages, logging mode);

6. Setting pressure and temperature compensation, selectionof values to be logged as well as pressure sensorcalibration (required, only if no semi-automated calibrationof the instrument has been carried out!);

7. If necessary print applied settings;8. To insert the first filter holder manually into the changer

magazine;9. To slide upwards up to the stop and to hold empty

collection tray with the right hand;

10a With a firmly held empty collection tray, press the key„Manual change“ for approx. two seconds, then put therocker switch „Changer off“ to the position „on“. Then theinserted filter holder is automatically transported to theflowing position;

10b Alternatively: using the black knob by rotating with the lefthand, you can move the changer fork from the flowingposition below the magazine and back. Herewith, while thefork is under the filter holder magazine, the inserted filterholder should drop from the magazine onto the fork;

11. Insert further filter holders with filters (observe the datesequence) to the filter magazine.

12. The rocker switch „Changer off“ has to be put into theposition „on“ (unless already performed under point 10a));

13. The rocker switch „Blower off“ in the position „on“;14. Possible new start time to program and to restart the

program or to program flow through the „prestart filter“.Except for the LED indicating „Heating“ (probe heating), no other

LED's are flashing.So the sampler is programmed and sampling will start at the start

time set

Instrument filter exchange and inspectionBlower running1. The filter magazine has to be replenished with new filters in

the simplest way under operation, but no more than 15 filterholders should be in the magazine, otherwise the capacity ofthe collection tray might be exceeded!Deposited filters can be removed from the collection trayduring operation without switching the instrument off.

2. At the beginning, the instrument has to be inspected morefrequently. It is necessary to make the checks aslisted below:- The display has to indicate the time in

minutes elapsed since the beginning of the current filterprogram up to the current time. Mind: always CentralEuropean Time!

- The previous day filter holder has to rest at the top of thecollection tray. The next day filter holder is in a circularrecess of the upper changer plate in the waiting position tobe changed;

- The floater of flow meter has to be in its set-point position.- Except for the LED indication for probe heating, no other

LED's are expected to be flashing. At last, when the LEDstarts flashing indicating „Last filter in service“, themagazine has to be charged with new filter holders so thatthe changing program can continue without interruption.

- Read the instrument operation duration from the counterconcerning the operation hours and enter the readingtogether with the current time (always CET) in the logbook.Printer protocol feasibility (optional) has to be checked.

7.3 Flow calibration

7.3.1 General information

In order to measure and to control volume flow, the flow meteraccuracy class 2.5 (tolerance +/-2.5 % from the measurementrange value) is used with the Digitel High Volume Sampler as ameasurement value sensor. To increase accuracy of thetransported volume flow, it is possible to perform semi-automated calibration using an external calibrated flow meter asdescribed in chapter 6.3.It is explicitly pointed out that no marks (e.g. own calibrationmarks as marker marks, labels...) may be applied on theflowmeter measurement tube. It might result in erroneousfunctionality or failures that can be hardly detected duringcalibration!

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Moreover, ensure that the aluminium scale (with data onthe flow in litre/min.) fitted on the flowmeter isadjustable! The values readable on that scale can be

considered as rough benchmarks only. In order to be able todetermine accurate flow values, it is necessary to determine thefloater position in the divisions etched on the measurement tube.Accurate flow in liter/min. can be determined from this floaterposition.

7.3.2 Calculation

Ratio of flow values of two gases is indirectly proportional to ratioof square roots of their densities. - the flow meter principle:

(1) 21

12

ρρ

=QQ

Q1: known flow value, reference statusQ2: searched flow value in operation statusρ1: known density, reference statusρ2: density of measured gas in operation status.

Because � ~ p/T , the operation volume flow gives Qloc (at theplace of installed flow meter) from the volume flow value Qscaleread from the glass scale as:

(2) )p(T)T(pQ Q locreflocrefScaleloc ×××=

QScale:volume flow read on scalepref: 1 013 mbar (pressure at which the scale was

calibrated)Tref: 15°C or 288 K (temperature at which the scale was

calibrated)ploc: operation pressure on the flow meterTloc: temperature on the flow meter

or

(3) )T(p)p(TQ Q locreflocreflocScale ×××=

For operation volume flow of 500 l/min under station conditionsthe following conditions will be on the integrated flowmeter:TStation flowmeter = TStation + 3K (approximate value)pStation flowmeter = pStation – pfall at filter (will be meassured automaticallyduring calibration)pStation integrated flowmeter: average air pressure at the installation siteminus pressure fall at filter at volume flow of 500 l/min. Whichmeans: the air pressure of measuring system if the air pressure atthe pre-separator is the same pressure as at the station.TStation integrated flowmeter: average temperature at the installation siteplus 3K temperature increase at filter at volume flow of 500 l/min.Which means: the temperature of the measuring system if thetemperature at the pre-separator is the same temperature as atthe station.

from the general gas equation 2

22

1

11

TpQ

TpQ ×=× it follows:

(4)

flowmeterin -buildStation Station

flowmeterin -buildStation StationRef

filterat fallStation

Station

Station

StationRef

(Station)flowmeter in -buil loc

p TT pQ

p -p3K T

TpQ

Q

××

×

=+

××

=

QRef: Air inlet volume flow of 500 l/min. under stationconditions.

Qloc indoor Station: volume flow in the integrated flowmeter forair inlet volume flow of 500 l/min. understation conditions.

pStation: average air pressure at the installation siteTStation: average temperature at the installation site

At the station conditions at the integrated flowmeter and fromequation (3) and (4) follows:

(5)

flowmeterin -buildStation ref

flowmeterin -buildStation ref

Station

StationRefflowmeterin -build Scala

ppTT

TpQ Q

××

××=

QScala integrated flowmeter: Shown volume flow at integratedflowmeter under station conditions at pre-separator forair inlet volume flow of 500 l/min. This value isautomatically taken over by the control software as aset flow.

At these settings the volume flow at the pre-separator is QRef

(500 l/min) if the station conditions are given. The volume flow fordifferent conditions during calibration follows from equation (2)and (5):

(6)

flowmeterin -buildref

flowmeterin -buildref

flowmeterin -build Scalaflowmeterin -build Cal

pTTp

Q Q

××

×=

QCal integrated flowmeter: actual set volume flow (actual conditions)at the integrated flowmeter for volume flow of 500 l/minat the pre-separator under station conditions.

pintegrated flowmeter: actual pressure in the integrated flowmeterduring calibration

Tintegrated flowmeter: actual temperature in the integratedflowmeter during calibration

or

(7)

flowmeterin -buildStation flowmeterin -build


Station

StationRefflowmeterin -build Cal

ppTT

TpQ Q

××

××=

From the general gas equation and from the equation (7) followsthe volume flow on calibrated flowmeter:

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(8)



flowmeter cal.Station

flowmeter cal.Station RefRef Cal

pTTp

p TTpQ Q

××

×××

×=

QCal Ref: flow on calibrated flowmeter (under actualconditions), so that reaching the operation volumeflow of 500 l/min (at the pre-separator) under stationconditions.

Pcal. flowmeter: actual air pressure in the calibrated flowmeter(during calibration is the same pressure at theseparator)

Tcal. flowmeter: actual air temperature in the calibrated flowmeter(during calibration is the same temperature at theseparator)

From the equation (3) and the equation (8) follows the flow to beset on calibrated flowmeter (under actual conditions), thusreaching the operation volume flow of 500 l/min (at the pre-separator) under station conditions.

(9)

refflowmeter cal.flowmeterin -buildStation flowmeterin -build

refflowmeter cal.flowmeterin -buildStation flowmeterin -build

Station

StationRefRef Cal Scale

p p pTT T Tp

TpQ Q

××××××

××=

QScale cal Ref: flow to be set on calibrated flowmeter, so thatreaching the operation volume flow of 500 l/min (atthe pre-separator) under station conditions.

7.3.3 Error estimates

A frequent question emerges how errors in temperature orpressure measurements or deviation from assumption applied tothe determination of the operation volume affect the calculatedstandard resp. operation volumes. The order of magnitude ofthese errors is illustrated below using several examples. Further,there are also stated affects of deviations of actual stationconditions during the sampling period how the entered stationconditions affect upon calibration of the instrument.

Accuracy of internal sensorsThe pressure measurement in an integrated flowmeter isperformed with an accuracy of +/-2 % from an indicated valuewithin the entire temperature range of application.The temperature measurement in the integrated flowmeter isperformed with an accuracy of +/-0.75 % from the indicatedvalue in K within the entire temperature range of application.

Flow settings accuracy on calibrated flowmeterAccording to the UMEG test report examination in which also theaccuracy of the flowmeter flow settings are examined (test ofDigitel dust particle samplers DHA 80 with an pre-separatorPM10 according to EN 12341; the UMEG report No. 6-08/00), thereproducible setting accuracy represents +/-0.45 %.

Flow calculation error due to the sensor errorThe following example clarifies the effect of an internal sensorerror:

)T(T)p(ppTQ Q mrefmref

N

NScaleN ××××=

QN: average flow on standard conditionsQscale: the flow set on the flowmeterpN: standard pressure (1 013 mbar)TN: standard temperature (288 K)pref: 1 013 mbar (the pressure at which the scale wascalibrated)Tref: 288 K (the temperature at which the scale was calibrated)pm: average pressure on the integrated flowmeter duringsampling periodTm: average temperature on the integrated flowmeter duringsampling period

The maximum error of QN caused by an error of Tm and pm

measurements is at maximum +/-1.66 % throughout the entiretemperature range of application. As a rule, the error issignificantly smaller, as the error of pressure measurement at thestandard operation temperature range is considerably smaller.Anyway, to this the uncertainty of flow determination of +/-0.45 % has also to be added.Example:

QScale = 520 l/min, pm = 960 mbar, Tm = 295 K

from which the standard flow is calculated:

QN = 500.17 l/min.

if now the measurement of pm transmitted a value higher by 10mbar (approximately 1.05 % error), it yields an actual standardflow of QN = 497.56 l/min. So the standard flow was enteredapprox. 0.52 % too high.The result were similar, if the temperature was erroneous: Let usassume the measured temperature was approx. at 2 K (about0.67 % higher), then it implies actual standard flow of QN = 50l.88l/min. The standard flow was also entered about 0.34 % lower.

Error estimates for calibrationWe have based our considerations upon the fact that valuesrequired for calibration are given with higher accuracy (currentpressure and current temperature on a calibrated flowmeter arebetter than +/-0.5 %). Assuming that the total error of calibrationremains below +/-1 % (+/-0.5 % due to pressure andtemperature values and +/-0.45 % due to the accuracy of thesetting of the floater in the calibrated flowmeter).The flow value calculated for controlling depends only uponinternal measurement magnitudes of Tm and pm. Herewith, tothis value, the above-calculated maximum error of +/-1.66 %applies for this value. Because of the fact that at the moment ofcalibration the pressure sensor is also automatically calibrated,the error generated by pressure sensor leads in direction of arelease limit of the internal analogue/digital convertor. Otherconsiderable error sources (e.g. temperature drift of supply andreference voltages) are not relevant at the present time. Herewiththe maximum error is reduced to +/-0.58 %. It should be notedthat the uncertainty of flow setting of +/-0.45 % should be addedto this value, whereas the maximum total error of automaticallycalculated flow yields to +/-1.03 %.The accuracy of pressure and temperature value for stationconditions do not result in absolute accuracy of calculatedoperation and standard volume values! Particularly the averageactual operation volumes determined over a year do notcorrespond to required operation volumes of 500 litres/min., ifthe average yearly pressure and temperature values don’tcorrespond to the entered station conditions.Example:PStation: average air pressure at the installation site

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TStation: average temperature at the installation siteQStation: average operation volume flow at the installation site(500 l/min.)PStation = 990 mbar, Tstation = 282 K,when calibration was performed under these station conditionsand the average temperature over a year is deviated by 1 K

upwards, general gas equation 2

22

1

11

TpQ

TpQ ×=× yields:

Station

newStation StationnewStation

TTQ Q ×= = 501.77 l/min. It was

transported approx. 0.35 % more in yearly average. Thisdeviation of the required flow, however, impairs the pre-separator separation degree only to a small extent.

7.3.4 Performing calibration

Preliminary notesSemi-automatic flow calibration is only possible by using one ofcalibrated Digitel flowmeters designed for this purpose. If youwish to relate calibration to an other transfer standard, pleasecontact Digitel directly or a local branch-office in order to getsuitable calibration instructions. The same applies to a calibrationfor an operation volume flow different from 500 l/min.Calibration for the operation volume flow of 500 l/min. at stationconditions (estimated average air pressure and averagetemperature at the installation site during an expected samplingperiod) is done with regard to Digitel pre-separators (PM10;PM2.5) having their „cut point“ of 10 µm or 2.5 µm always at thisflow rate. At the same time, the comparison of sampling resultsof as many stations as possible is made simpler.All calibrated flowmeters delivered by Digitel have a calibrationmarking (prevailing a red mark) for 500 l/min. at 15°C and 1 013mbar.

For the performing of forthcoming calculations, the followingparameters have to be entered:- poutdoor: current pressure at calibrated flowmeter- Toutdoor: current temperature at calibrated flowmeter- pStation: estimated average air pressure at the installation siteduring expected sampling period- TStation: estimated average temperature at the installation siteduring expected sampling period;- position of the calibration mark on the calibrated flowmeter inmm;- position of the floater in the calibrated flowmeter before re-calibration;- position of the floater in the integrated flowmeter after re-calibration.

The following values are automatically determined duringcalibration:- pindoor: pressure in the integrated flowmeter during calibration- Tindoor: temperature in the integrated flowmeter duringcalibration

The values for pStation and TStation can only be estimated. As a rulethe average annual values of air pressure and air temperature atthe installation site are applied (presumed that the instrument willoperate at the installation site for a period of at least one year).These values can only be taken from neighbouringmeteorological stations. If no meteorological data are available, itis possible to refer to offices of local weather services. As a rule,required data can be determined with satisfactory accuracy (seealso the chapter 6.3.3 Error estimates).

7.3.5 Preparation for calibration

1. Prepare a calibrated flowmeter with a matching couplingadapter.

2. Prepare a filter holder with an inserted new filter. The samefilter material has to be used as the material used for thesubsequent sampling.

3. Note the position of the calibration point on the calibratedflowmeter (as a rule, a red mark). The position reading isperformed in mm (printed scale division). For KDE/Mobreyflowmeter only.

4. Determine the data for pStation and TStation (yearly averagevalues for pressure and temperature at the installation site).

5. Determine the data for Pouter and touter (current pressure andcurrent temperature at the calibrated flowmeter; if thecalibrated flowmeter is fitted in the measurement cabinetdirectly on DHA-80, the inner temperature of themeasurement cabinet has to be applied; if the calibratedflowmeter is operated in open air, the current outertemperature has to be determined).

6. Set the switch probe, heating to the lowest degree.7. If the sampler is just processing a program, follow the

instructions shown under item 7. Otherwise skip to item 9.8. Remove the already deposited filters from the filter

magazine below the changer level (just check the sequenceof filter holders, if the filters are not numbered).

9. Remove all the filters that are not sampled yet from the filtermagazine. (here check the sequence of filter holders aswell).

10. The filter holders, processed and located presently in theflowing chamber, shall be changed during calibration.Therefore it is not required to remove this filter holdermanually from the flowing position!

11. Further, all data determined at the beginning of calibrationare automatically logged to the currently active filter (printer,USB-drive, interface). It is not required to finish the programbefore starting calibration!

12. Now you can perform calibration (see chapter 6.3.4).

7.3.6 Start calibration

Start calibration in the menu „Program“ (key „F“) - „Enterparameters“ (key „2“) - „operation mode“ (key „5“) - „operatingconfig.“ (key „1“) - „Press./Temp. meas.“ (key “1”) - „calibration“(12 times the key „arrow right“ then key „0“).Starting the calibration, a possible running sampling program isinterrupted. The current filter data are logged.After data logging exchange for the interrupted sampling cycle,the display indicates a requirement to insert a filter holder with anew filter into the filter-holder magazine:

Insert filterfor calibration

0 ... continue

Further on, the calibrated flow meter has to be set ( fitting shouldbe preferably carried out between the air inlet on DHA-80 andpre-separator).Check if the filter holder is in the flowing position (see also figurein chapter 3.2). If yes, you can continue with item 5.Before entering key „0“, you have to push the filter collection trayupwards, as the filter change is performed immediately afterpressing the key. If no filter holder is in the flowing chamber andthe filter collection tray at filter changing is not pushed upwards,the filter holder with the filter intended for calibration will notcorrectly be changed!Check if the switch „Blower off“ is not activated (not in theposition „Blower off“) and the switch „Changer off“ is notactivated as well. Entering key “0“, you can go on.

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Entering key „0“, the empty calibration filter resting in filtermagazine will be full automatically exchanged. Now you canremove a changed filter holder from the filter collection tray andre-insert it in the filter magazine after calibration and continue thesampling program.

Please choose the manufacturer of the reference measuring tubefirst:

reference flowmeter0 TECFLUID1 KDE/MOBREY

TECFLUID: 420 – 600 l/minKDE/MOBREY : 100 – 1000 l/min

If a KDE/MOBREY reference flowmeter is connected, the positionof the calibration point has to be indicated :

Enter the calibration point position on the calibrated flowmeter(measurement tube has a scale division in mm from 0 to 270units).

calibration pointat calibratedflowmeterpos. [mm] :000

Subsequently the manufacturer of the interior flowmeter has tobe chosen :

interior flowmeter0 TECFLUID1 KDE/MOBREY

TECFLUID: 420 – 600 l/minKDE/MOBREY : 100 – 1000 l/min

After the selection of the measuring tubes an overview of theselected measuring tubes is given.By pushing key „0“ you confirm the displayed configuration.

flowmetersreference: TECFLUIDinterior :KDE/MOBREY0..yes / D..back

Please enter the annual average values of the air pressure and airtemperature at the installation site.

Warning: The temperature has to be entered in degreesof Kelvin!

average conditionsat stationp [mbar] : 0000T[K](0°C=273K): 000

Enter the current conditions in the calibrated flowmeter.

act. conditions atreference flowmeterp [mbar] : 0000T[K](0°C=273K): 000

After the entering of the value the blower will run up.

If the floater assumed a stable position in the calibratedflowmeter, read the current floater position from the calibratedflowmeter in mm and enter the determined value:

actual uncalibratedswimmer position atreference flowmeter:pos. [mm] : xxx

After the entering of the value the instrument operates forapprox. 15 seconds; during this period the temperature andpressure in the integrated measurement system are determined:

Please wait

15

Only for TECFLUID referenz flowmeter:Please put in the position at the indicated flow at the calibratedflowmeter :

Calibration point onref. flowmeter520 l/minpos. [mm] : xxx,x

After an elapsing of 15 seconds, the display indicates the data ofscale value to which the floater has to be brought on thecalibrated flowmeter (by sliding a photo-diode fork on theintegrated flowmeter), so that the instrument is calibrated for thespecified station conditions

swimmer position atreference flowmeter:pos. [mm] : xxx0 ... continue

Having carried out the setting, confirm the process on the controlby entering key „0“. Now you are required to read and to enterthe current floater position in the integrated flowmeter:

swimmer position atinternal flowmeter

pos. [mm] : 000

After entering this value (serving only for a check), all entered andinternally calculated values are logged (printer, USB-drive,RS232). This log also transmits the percentage variation of theset flow.The display indicates either passed calibration confirmation.

calibrationsuccessful

0 ... continue

or an failure indication message:

calibration notpossible! seemanual0 ... continue

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The failure indication message is transmitted, if the enteredfloater position of the integrated flowmeter deviates too muchfrom the calculated set point. This happens, when leakageoccurred in the instrument. If so, please contact the Digitelcompany or its local representation office urgently.

If you don’t want to start a new sampling program aftercalibration, please continue with item 19.Now, insert the filter holders for the next sampling program in thefilter magazine (as the first filter holder, e.g. such filter holder thatflown just before calibration, then in sequence, filter holders indesignated sequence). By entering key „0“, you will leave thecalibration menu and the inserted calibration filter is exchanged.

Enter the start time for the next filter that is not fully depositedyet in the menu point „Program“ (key „F“) - „Start programme“(key „1“) - „Start date / time“ (key „1“) (as a rule, on the next dayat 00:00 o'clock).Start the program for the filter that is already half-deposited(previously having been automatically changed) in the menu point„Program“ (key „F“) for „prestart filter“ (key „3“) and enter key„0“. This filter will be processed until the start time the next filteris reached! After having evaluated this filter, it should be checkedthat the sampling time is composed of the pre-calibration timeand the time during the filter was processed in the pre-start filterprogram. Both the values have to be added manually!Herewith the instrument is reset into original sampling condition,and the selected program is processed.Unless a new sampling program is to be started after calibration,the calibration filter holder has to be exchanged manually fromthe flowing position: switch automatic „changer off“ and enterthe button „Manual change“ for a short period of time (1 to 2seconds). Then switch the automatic „changer off“ on again.Now the filter holder which is present in the flowing chamber, isautomatically changed.

7.3.7 Logging of calibration

At the end of calibration, the entered and internally calculateddata are logged on the printer, USB-drive or serial interface (ifavailable and activated). As an example, we provide here loggingon the printer:

Tu 12.05.09 08:36:43calibration started

Tu 12.05.09 08:37:53Work

Tu 12.05.09 08:38:15Filter change

Tu 12.05.09 08:38:31Blower on

Tu 12.05.09 08:40:43Calibration for 500 l/minat av. station conditionsflowmeters :reference : TECFLUIDinterior : KDE/MOBREYp(act) outdoor [mbar]: 942T(act) outdoor [K]: 293pM (500 l/min) [mbar]: 911TM (500 l/min) [K]: 296p(average) [mbar]: 930T(average) [K]: 283p(standard) [mbar]: 1013T(standard) [K]: 273c-pos (520 l/min)[mm]: 145cal. pos(Station)[mm]: 120pos. swimmer [mm]: 125

pos. int.(Input) [mm]: 123pos. int.(target)[mm]: 127Offset int. skale[mm]: -4Q scale outd. [l/min]: 483Q amb. act. [l/min]: 505Q scale indoor[l/min]: 494Q standard [l/min]: 443Change [%]: 3,6calibration successsful

Tu 12.05.09 08:43:17Blower off

Tu 12.05.09 08:43:17end of calibration

7.4 Meaning of abbreviations:

p(act)outdoor [mbar]: Current pressure on thecalibrated flowmeter

T(act) outdoor [K]: Current temperature on thecalibrated flowmeter

pM (500 l/min)[mbar]:

Current pressure on the integratedflowmeter

TM (500 l/min) [K]: Current temperature on theintegrated flowmeter

p(average) [mbar]: Average yearly pressure at theinstallation site (station condition)

T(average) [K]: Average yearly temperature at theinstallation site (station condition)

p(standard) [mbar]: Standard air pressureT(standard) [K]: Standard air temperaturec-pos (520 l/min) [mm]: only for TECFLUID reference

flowmeter :calibration position of thereference flowmeter at theindicated flow

pos. Cal. Point [mm]: only for KDE/MOBREY referenceflowmeter :calibration point position oncalibrated flowmeter

Offset cal. Point [mm]: point only for KDE/MOBREY referenceflowmeter :Difference between calibrationposition and calibration table 500l/min position

Pos. Swimmer [mm]: Floater position on calibratedflowmeter before calibration

cal. pos(Station) [mm]: Position of the floater calibratedfor average station conditions onthe installation site in calibratedflowmeter

pos. int.(Input) [mm]: Floater calibrated position in theintegrated flowmeter

pos. int.(target) [mm]: Floater set-point position aftercalibration in the integratedflowmeter

Offset int. scale[mm]: Difference between integratedflowmeter scale and calibrationtable (at Q amb. act.)

Pos. int. (target) [mm] = Pos.int.(Input) [mm] – Offset int.skale [mm]

Offset filter [mm]: only for KDE/MOBREY referenceflowmeter :Difference between calibratedflowmeter and integratedflowmeter on the basis of the filterresistance (depends on lower

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pressure in integrated flowmeter).Pos. int. (target) [mm] = cal.pos.(Station) [mm] – Offset cal.point [mm]

Q scale outd. [l/min]: Flow rate on the calibratedflowmeter after calibration relatedto station conditions

Q amb. act. [l/min]: Currentflow rate on the calibratedflowmeter after calibration atcurrent conditions

Flow rate on the calibratedflowmeter after calibration relatedto station conditions

Q scale indoor [l/min]: Set flow rate on the integratedflowmeter after calibration (thisvalue should also automatically betaken over as an operation flowrate into control)

Q standard [l/min]: Flow rate after calibration relatedto standard conditions

change [%]: ((Actual value – Target value) /Target value) * 100The flow rate variation of theprevious calibration (positivevalues indicate an decrease,negative values indicate aincrease in the flow rate due to re-calibration)

7.4.1 Determination of standard andoperation volumes

Considering the pressure and temperature values determinedduring the sampling period on the integrated flowmeter, thevalues for VStandard (= Vs) or Vmeas.system (= VM) or in following forVamb. (= VA) are calculated from the equation (7) (Chapter 6.3.2) aslisted below:The equation (3) yields:

(8) )p(T)T(pQ Q mrefmrefindoor Scalem ×××=

Qm: average flow rate on the flowmeter during a samplingperiod

QScale indoor: a set flow rate (e.g. automatically determinedby calibration)

pm: average pressure on the integrated flowmeter during asampling period

Tm: average temperature on the integrated flowmeterduring a sampling period

St×= mm Q V

Vm: transported volume at the flowmeterts: sampling time

resp.

(9) )p(T)T(p c mrefmrefM ××=

cM: correction factor for flow rate on the flowmeter

while from the general gas equation Q1 x (p1 / T1) = Q2 x (p2 / T2)and the equation (3) it follows:

(10) )T(T)p(ppTQ Q mrefmref

N

Nindoor Scales ××××=

Qs: average flow rate at standard conditionspN: standard pressureTN: standard temperature

(11) St×= ss Q V

Vs: transported standard volume on the flowmeter

resp.

(12) )T(T)p(p c mrefmrefs ×××=N

N

pT

cs: correction factor for the standard flow rate on theflowmeter

For transported operation volume determination on the samplinghead, not all required measurement values are available for thecontrol at the moment. Nevertheless the following calculation canserve a good approximation:Air pressure determination (operation pressure) on the samplinghead is performed by pressure measurement before and aftersampling with the blower switched off on the integratedflowmeter and by calculating the average of both measurements.Moreover, it is supposed that air passing through the filter iswarmed up approximately by 3 K. As a result of that, thetemperature decreased by 3 K on the integrated flowmeter istaken as the average temperature on the air inlet (operationtemperature).Consequently according to the equation (11), the operationvolume on the air inlet under determined conditions can bederived:

(13) )T(T)p(ppTQ Q mrefmref

A

Aindoor ScaleA ××××=

QA: average flow rate at operation statuss on the air inletPA: operation pressure (determined indirectly)TA: operation temperature (estimated)

Further, it implies:

(15) St×= AA Q V

VA: transported operation volume on the air inlet

or

(14) )T(T)p(p c mrefmrefA ×××=A

A

pT

cA: correction factor for operation flow rate at the air inlet.

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8 ProgrammingThe programming is made by using the key pad integrated in thefront panel. By switching on the instrument, a self-test isperformed automatically. As a confirmation of the correctlyperformed self-test, the display indicates the main menu withoutany failure indication messages in the status lines.

Mo 04.05.09 10:32:17

PauseEnd of program

If the instrument does not behave as described after beingswitched on a service engineer has to be informed.

8.1 Using the key padThe key pad consists of an input unit (16-multiplefunction keys)and a display (illuminated LCD display consisting of 4 lines with20 characters each).Using the key pad all the instrument functions or current settingscould be programmed.Some keys have multiple functions.Six, out of 16 keys, are special keys with those the followingspecial functions can be called up:Menu key (F): Usingthis key, you will get from the main menu into the program menu.The overview of all input fields is shown in the annex.Exit key (D): Usingthis key, you will interrupt the running input without any changeor you will leave the current input level. Using this key (multiplepressing, if necessary), you can leave the programming andreturn to the main menu.Enter key (C): Usingthis key, you confirm the last input.Cursor keys (A, B): Usingthese keys, you can move in input options quickly and withoutany change in the pre-set value.For example, the main menu display will look as follows:

Mo 04.05.09 10:32:17

PauseEnd of program

If several status messages are displayed, the status messagesare changing in seconds stroke.The figures next to the status display (Work or Pause) indicatethe pre-set status time or the time elapsed in this status,expressed in minutes.

8.1.1 Programming, using key pad anddisplay

In this operation mode, you can set all important instrumentoperation parameters. To get to the programming mode, youhave to be in the main menu and enter the key MENU (F).

0 Status1 Start program2 Enter parameters

8.2 StatusDepending on the instrument programming, the current statusinformation is displayed here. Because not all pieces ofinformation are indicated on the display at the same time, newbits of information are shown every five seconds. Using the Exit

key (D), you can leave the status display any time. Using theMenu key (F), you can switch to the programming status.Pressing key „0“, it is possible to keep automatic display re-switching. Then, the displayed values are updated every fourseconds. By repeated pressing key „0“, automatic re-switching isactivated again.Example:Display of the current blower setting and flow metering system ofthe current pressure and temperature values :

Mo 04.05.09 10:32:17Bl. Load[%] : 54TM.[°C] : 32,6pM [mbar] : 978

After 5 seconds, the display will automatically switch to thedisplay of the previous sampling averaged measured pressureand temperatur values at the flow metering system.

Mo 04.05.09 10:32:27

TaM [°C] : 30,8paM [mbar] : 977

After 5 seconds, the display will automatically switch to thedisplay of the previous sampling averaged measured pressureand temperatur values at the at the inlet.

Mo 04.05.09 10:32:27Collecttime: 314,07TaA[°C] : 30,8paA [mbar] : 977

After 5 seconds, the display will automatically switch to the airvolume value transported during the previous sampling time

Mo 04.05.09 10:32:32VM [m³] : 160,804Vs [m³] : 153,759VA [m³] : 156,274

The second line displays the transported gas volume at theflowmeter average conditions. The third line displays thetransported gas volume under standard conditions (e.g. 15°C,1013 mbar). The fourth line shows the transported gas volume onthe air inlet. However, this value is determined indirectly, while itcan be read as an order of magnitude only .

After 5 seconds, the display will automatically switch to theindication of the collection time and the transported gas volumeunder standard conditions( e.g. 15 °C, 1013 mbar) of therespective cartridge if the cartridge changer has been activated.

Mo 04.05.09 10:32:37Cartridge 1Collecttime: 314,07VS [m3] : 153,75

After 5 seconds the display will automatically switch to the issueof the transported gas volume under the averaged conditions atthe flow meter and the transported gas volume at the inlet of therespective cartridge.

Mo 04.05.09 10:32:42Cartridge 2VM [m3] : 160,80

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VA [m3] : 156,27

This display is repeated for all cartridges:

Mo 04.05.09 10:32:37Cartridge 2Collect time: 314,07VS [m3] : 153,75

Mo 04.05.09 10:32:42Cartridge 2VM [m3] : 160,80VA [m3] : 156,27





After 5 seconds, the display will automatically switch to thedisplay of the wind data.

Mo 04.05.09 10:32:42act s. [m/s]: 4,3act d. [deg.]: 312Gust [m/s]: 6,1

After displaying these bits of information, the status display willstart again with the first screen.

8.2.1 Program start

In this menu, you can select to start the program immediately orto enter a particular date and time at which the program isexpected to start.

Start date/time1 DD.MM.YY hh:mm 04.05.09 10:322 immediately

If the cursor points at figure „1“, you get to the sub-menu forsetting the start time, by pressing the Enter key or key „1“.

Start date/time1 DD.MM.YY hh:mm 04.05.09 10:322 immediately

Now you can enter the required date and time to start up theprogram. If you press the Enter key, the time is confirmed andthe main menu is displayed.The printer will give following messages:

Mo 04.05.09 10:30:00

Wait

If you switch to the programming mode after the program Startagain, = => the menu point „pre-start filter“ is displayed:

0 Status1 start program2 Finish program3 Enter parameters4 Record5 Pre-start filter

8.2.2 Program start with cartridgechanger

Only possible with option “cartridge changer” (see xxx optioncartridge changer).

Start with

Cartridge 1

After that you can select in which mode the cartridge changeshould follow:

Cartridge change0 simultaneously with FC1 time of change

8.2.2.1 Cartridge change simultaneously withfilter change

By using the key “0” you start the cartridge changesimultaneously with the cartridge change. Here you can select ifyou would like to start the program immediately or if you indicatea specific date and time to get the program started.

Start Date/Time1 DD.MM.YY hh:mm04.05.09 10:322 immediately

When the cursor points under number „1“, you get into thesubmenu to program the start time using the enter key or key“1”

Start Date/Time1 DD.MM.YY hh:mm 04.05.09 10:322 immediately

Now you can enter the date and time for the program start. Usingthe enter key the time will be accepted and the status displaylights up. On the printer you see the following message:

Mo 04.05.09 10:30:00Wait

8.2.2.2 Cartridge change by programming periodsetting of change

Important: before starting the program the period setting (workand pause periods) have to be set. Only by indicating the rightstatus times the check of the cartridge change times can becarried out and a correct program can be guaranteed.

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If all start times correspond with the previous end times, allcartridges will be changed in sequence. The program is finishedwhen the end time of the last cartridge has been reached.

By using key “1” you start the menu for programming the timesfor of the cartridges.

First the collection time of the start cartridge has to be set:

Cartridge1 DD.MM.YY hh:mmfrom 03.05.09 12:00till 04.05.09 12:00

The start time of this cartridge corresponds with the end time ofthe previous cartridge.

After that the collection times for the other three cartridges haveto be set. Usually the end time of the previous cartridge is thestart time of the next cartridge.

8.2.2.2.1 Cartridge change in determinedsequence

If all start times correspond with the previous end times, allcartridges will be changed in sequence. The program is finishedwhen the end time of the last cartridge has been reached.

Example with start cartridge (= cartridge 1):

First the collection time of the start cartridge is entered:


The start time of this cartridge corresponds with the end time ofthe previous cartridge.Then the times for the next cartridge are put in.The start time of this cartridge corresponds with the end time ofthe previous cartridge.

Cartridge 2 DD.MM.YY hh:mmfrom 04.05.09 12:00till 05.05.09 12:00

Now the times for the next cartridge are put in.The start time of this cartridge corresponds with the end time ofthe previous cartridge.


The times for the next cartridge are put in.The start time of this cartridge corresponds with the end time ofthe previous cartridge.

cartridge 4 DD.MM.YY hh:mmfrom 06.05.09 12:00till 07.05.09 12:00

As soon as the end time of the last cartridge is reached, theprogram will be finished.

If all the inputs are correct, following message is displayed:

Cartridge changesuccessfullyProgrammed!0 ... continue

The program can be started.

If you decide for a pause period it could happen that thesampling preiode of a cartridge collides with the pause period.Then the following display is shown:

Cartridge 2inactive collec timeduring pause0..yes / D..return

The programming of the collection time for this cartridge can stillbe adjusted.

8.2.2.2.2 Cartridge change freelyprogrammable (standard mode)

To change the cartridge programming mode (simple or standard)please change the setting “cc simple mode” in the “Generaloperation configuration (6.4.2.1.4)”

The collection periods of the 3 cartridges can be programmedtemporally separated too.The fourth cartridge will be exchanged in the temporal gaps inbetween the collection periods.


First the collection time of the start cartridge is put in:


Then the times for the next cartridge will be put in.




Because of the fact that the end time of the previous cartridgesdo not correspond with the start time of the following cartridge, ithas to be confirmed that cartridge 4 will collect at this time:

Cartridge 4Used as an emptycartridge?0..yes / D..return

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Confirming the input with key “0” all inputs for the program of thecartridge change are complete:

Cartridge changesuccessfullyprogrammed!0 ... continue

The program can be starten after input of the start time:


8.2.2.2.3 Cartridge change freelyprogrammable (simple mode)

To change the cartridge programming mode (simple or standard)please change the setting “cc simple mode” in the “Generaloperation configuration (6.4.2.1.4)”

The collection periods of the 3 cartridges can be programmedtemporally separated too.The fourth cartridge will be exchanged in the temporal gaps inbetween the collection periods.


First the collection time of the start cartridge is put in:

Cartridge1 DD.MM.YY hh:mmfrom 03.05.09 12:00Days : 3


Cartridge 2 DD.MM.YY hh:mmfrom 07.05.09 12:00Days : 2


Cartridge 3 DD.MM.YY hh:mmfrom 13.05.09 12:00Days : 5

Because of the fact that the end time of the previous cartridgesdo not correspond with the start time of the following cartridge, ithas to be confirmed that cartridge 4 will collect between thistransition time:

Cartridge 4Used as an emptycartridge?0..yes / D..return

Confirming the input with key “0” all inputs for the program of thecartridge change are complete:

1 03.05.09 12:00 3D2 07.05.09 12:00 2D3 13.05.09 12:00 5D0..yes / D..return

The programming for the collection time for this cartridge can beadjusted here. If all the inputs are correct, following message isdisplayed:

Cartridge changesuccessfullyprogrammed!0 ... continue

The program can be started after input of the start time:


8.2.3 Finish program:

In this menu you can finish the active program at any time.All filter and cartridge data are stored and displayed.

End program ?

0 ... confirm

8.2.4 Input of parameter figures

The programmed operation parameters are saved in the batteryback-up memory.It averages that they are not deleted in case of a powerbreakdown.Change the parameters only if you received survey of impact ofrespective changes concerning the sequence of the program.Erroneous inputs may result in undesirable program sequencess!You can correct erroneous input any time by using cursor keys.Important:

Change of a parameter from „on“ to „off“ resp. „off“ to„on“ is carried out by entering the key „0“!Using the key pad with cursor keys, you can scroll

through all parameter fields or enter the figures of a requiredparameter field. If you enter a figure key, you can move usingcursor keys just within the input area (parameter figures) tocorrect the data input failures. The scrolling function of cursorkeys is then disabled. At the end you will confirm the enteredparameter figures using the Enter (key C). After that, the displayswitches to the corresponding parameter input.Of course, you can leave the current input level at any time bypushing the Exit key (D).When you have achieved the required parameter figure byentering cursor keys (A for lower parameter figures; B for higherparameter figures), you have to confirm the input using the C key.Therewith the display switches to the corresponding parameterinput.The entire ascending sequence from the main menu into theparameter input appears as follows:Press key F:

Status0 Status1 Start program2 Enter parameters

Enter key „2“:

3 date / time 4 period setting

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5 operation mode 6 version 7 print mode 8 default 9 language

8.2.5 Date/time

You are required to enter the date and time. Entering isaccepted, only if you confirm entering by using key.C. The best isto enter a time that is to be reached in several seconds and waitwith entering confirmation(C key) until the time entered isreached.

Date / time

DD.MM.YY hh:mm:ss02.05.09 11:28:45

The displayed pre-set value corresponds to the time at which thedisplay was created. If the date and time are matching eachother, you can leave the data input by using the Exit key withoutchanging the saved time. If the year is lower than 80, the date isconstrued as a value between 1 January 2000 and 31 December2079, otherwise as a value between 1 January 1980 and 31December 1999!Valid input range is: from1.1.00 00:00:00 to 31.12.99 23:59:59Available input range: from1.1.00 00:00:00 to 31.12.99 23:59:59

8.2.6 Period setting

8.2.6.1 Filter change

You are requested to program time figures for two possibleprogram status. The work-period defines the on-period inminutes. During this period the filter will be sampled and theblower is on. The pause-period defines the off-period in minutes.This period is a pause between the change of filters and thework-period re-processing.

period setting:Work: 00000 min.Pause: 00000 min.1 cartridge change

Using the exit key, you can leave the data input without changingthe stored period. The entered values are construed as minutes.Valid input range: from0 to 59 999 minutes

You will be requested to program the time for 2 possible programstatus. The “work period” shows the time in minutes in which theinserted filter should be flown (blower on). The “pause period”shows the time in minutes which is the waiting time between theprevious “work period” and the new filter change so that the newwork period can start.

Period setting:Work: 00000 min.Pause: 00000 min.1 cartridge change

With the return key the input can be quitted without changing thestored time.The values put in are expressed in minutes.

Valid input area: 0 till 59999 minutes

8.2.6.2 Cartridge change

The periods for the cartridge change normally are set at the startof the program.Here you can change them during the operation time.

The same menu appears as at item "6.2. Start program".

8.2.7 Setting of operation mode

You are requested to select one of configuration menus that canbe selected.

0 USB configuration1 Operating config2 Protocol config.

In the “USB configuration“, you can determine if you want tostore the data on the USB driver.MIND: the menu is only active if a USB drive is connected!In the „Operation configuration“, you can determine how theinstrument should behave (which measurements are to beperformed).In the „Protocol configuration“, you can determine whichcommunication protocol should be applied on the serial interfaceto the host computer.Using the exit key, you can leave the input.Valid input range: from0 to 2

8.2.7.1 USB configuration

Filterdata, status information and winddata (if selected) arestored in the internal flash – module of the control. The USB-drive is an option for transmission and analysis of these data.The storage of these data occurs when USB-drive is connectedand are stored on the USB-drive as well as on the flash as of theUSB-drive itself.You can plug in or plug out USB-drive as you like. By plugging inthe USB-drive the program starts an automatic dialogue with theuser to store the wanted data (The instructions to store therecord are described in item "6.5. Record" ).

0 USB-drive info1 Format USB2 start sw-update

In this menu you select between the short information for theplugged-in USB-drive, the re-formatting of the USB-drive or aloader of a new firmware via USB.

Using the exit key, you can leave from data input.Valid input range: 0,1, 2

8.2.7.1.1 USB-drive info

Using key “0” you get the memory information of the USB-drive:

Memory size : 256 MBLog file : 43 kBWind file : 55 kB

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The memory size is indicated in Mbytes.On the second line the data files and the sizes are listet.Logfile...filter data, status informationWindfile... wind dataUsing the exit key, you can leave the data input.

8.2.7.1.2 Formatting of the USB-drive

Using key “1” you get into the formatting menu. To complicatean unintended formatting of the USB-drive, you have to confirmthe formatting again:

0 format USB-drive

Using key “0”, the USB-drive will be reformatted.

MIND:By formatting the USB-drive, you will lose all the storedinformation ! After formatting, depending on the instrumentsetting, one or two data files are compiled. An accurate structureof these data files can be seen in annex A.3.Using the exit key, you will leave this display without formattingthe USB-drive.

USB-driveis formated

Please wait

When you enter „0“, the USB-drive is re-formatted. Thisprocedure takes several seconds. After successful formatting,the USB-drive is displayed:

Size [kB]: 256 MBLog file: 43 kBWind file : 55 kB

Using the exit key allows you to leave this display.

8.2.7.1.3 Loading new firmware from USB-drive

If you use key “2”, you will get into the menu “firmware update”.This menu only appears when the files “DIUPDATE.BIN” (newfirmware) and DI_FPGA3.BIN (new FPGA-file) are on the USB-drive.To complicate unintended overwriting of the firmware, you haveto confirm again:

0 load newFirmware from USB

When you enter „0“, the new firmware can be read from theUSB-drive and the control can be re-programmed. Thisprocedure takes several minutes. After successful firmwareupdate, a restart of the control will follow.

8.2.7.2 Operation configuration

Enter „1“, = =>display switches to the sub-menu of „operatingconfig.“.

0 glob. systemconfig1 press./temp. meas.2 wind meas.3 special config

General operation configurationEnter „0“,= => display switches to the sub-menu of „glob.systemconfig.“.

Chg.flt on overl offRepeat after 2h offWork time netto offF.ind.msg.only offBlower capacity onBlower cap.>=90% offBl. pwr sense[%]: 02# Blower on/off off4 day sequence offFC before pause offPark pos. offPrinter onShort messages offCartr. Change oncc simple mode offCont. Cartr.op. offDecimal sep. ,Beeper off

Menu item DesignationChg. Flt onoverl

Shall we exchange the filter in case ofoverloading and shall the remaining “Work”period be collected for a new filter or shall wewait for the working period end with blowerswitched-off?„on”: With filter exchange upon overloading„off”: Without filter exchange uponoverloading

Repeat after 2h Shall the blower switched-on after 2h after anoverloading?„on”: Restart after 2h after an overloading„off”: Wait the remaining “Work“ period withblower switched-off

Work time netto Shall the time be held after a power breakdownin the “Work” status?„on”: The status period (“Wait”, “Work” or“Pause”) is held during power breakdown. Itsuggests that any filter (independent of a powerblack out) is deposited with the set “Work” time.Additionally it implies that any powerbreakdown shifts the next filter change timepoint by the period of power breakdown, sothat the filter exchange time point cannot bedefined any more.„off”: After a power breakdown finishes, apower breakdown period is added to thecorresponding status time ((“Wait”, “Work” or“Pause”). In this way the set cycle of filterexchange (e.g. filter changes always atmidnight) is kept in any case. However in caseof power breakdown, the inserted filter is notdeposited at complet “Work” .

f. ind. msg.only Shall we log the failure indication messages?„on“: Only failure indication messages willbe logged (on the printer and interface). Thefollowing statuss are defined as failure

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Menu item Designationindication messages: overloading, changerlocked, last filter inserted, program started,program completed.„off“: All status and failure indicationmessages will be logged. The scope of statusmessages depends on further settings!

Blower load on Shall we log the blower load (on printer,interface, USB-drive)?„on“: In addition to status messages„Blower on and „Blower off“, the current blowerload is logged. See lines 5 and 6, too.„off“: No blower load is logged.

Blower load>=90%

Shall we log the blower load at values >=90 %,only?„on“: Logging of blower load is onlyperformed at the values >=90 % (hereby theline 4 should be set on).„off“: Logging of blower load is performedindependent of its value (hereby the line 4should be set on).

Bl. pwr. sens.(%)

How frequently shall the blower load betransmitted?Here the percentage rate can be pre-set,deciding at which variation of blower load theoutput is to be transmitted (the line 4 should beset on „on“). If a lower value (e.g. 1 %) is pre-set, there is a risk that the blower load will bebe transmitted too frequently, as any variationof conditions on the filter (e.g. moisture,temperature etc.) should be controlled. Pre-setting of a higher value reduces the frequencyof messages concerning the blower load.

#Blower on/off Shall the number of „Blower on“ - „Blower off“be transmitted at the end of the sampling time?„on“: After the “Work” period elapsing thecycle number „Blower on“ - „Blower off“ islogged, besides others, too. As a rule, this valueis only relevant at operations with wind control.„off“: No cycle number output „Blower on“- „Blower off“.

4-day sequence Shall the program of four-day samples beactivated?„on“: The filter is deposited for 24 hoursevery 4th, 8th, 12th, 16th, 24th and 28th day ofa month. The pre-set status times are invalid inthis setting.„off“: Program control is performed by pre-set status times.

FC beforepause

Shall the filter change proceed before pauseperiod?„on“: Filter change will proceed at the startof pause period.„off“: Filter change will proceed at the endof pause period.

Park pos. Should the filterholder go into a park positionbefore a preset pause period?„on“ ... The filterholder is directed to a park

position.„off“ ... The filterchange results without goinginto a park position.

Printer Should logging be performed on the integratedthermo-printer?„on“: Logging on thermo-printer.„off“: No logging on thermo-printer.

Short messages Shall logging be performed on the integratedthermo-printer in a brief form?„on“: Logging in a brief form.„off“: Normal logging.

Cartr. Change Should the cartridge changer go into operation?

Menu item Designation„on“: Cartridge change results at the sametime with the filter change or at program changeat time of change.„off“: No installation of the cartridgechanger or no change of cartridge necessary

CC SimpleMode

cc simple mode: This selection is onlydisplayed when the cartridge changer is inoperation. Should the programming of the“cartridge changer” be performed in simplemode?“on” = yes : the programming of the cartridgechanger is done in a simple way“off” = no : the programming of the cartridgechanger is done in a standard way (seeprogramming of the cartridge period setting))

Cont. Cartr.op. This selection is only displayed when thecartridge changer is in operation. Should theprogram “cartridge changer” be accomplishedcontinuously?“on”: the cartridge change results at the same

time with the filter change till the filtermagazine is empty or till the program isfinished manually.

“off”: After a program cycle (all 4 cartridgeshave been flown) the program is finished.

Decimal sep. Decimal separator“,” ... on the USB driver the printer and thedisplay the decimal separator is released as adot.

Beeper Activate key tone?“on” ...by using a key, a tone will be generated.“off” ...no tone

8.2.7.3 Pressure/temperature correction

Enter „1“, = => sub-menu of pressure/temperature correction:

Press./Temp.corr. off

When the pressure/temperature correction is activated, furthermenu points are displayed:

Press./Temp.corr.onAmbient p/T reg. oncorr. meas. oncorr. stand. oncorr. amb. onvol. meas. [m³] onvol. stand.[m³] onvol. amb. [m³] onPress./Temp meas onTemp. std.[°C]: 10P. std. [mbar]: 1013Flow through : 1000P(uncal)[mbar]: 0950calibration off

Menu item DesignationP/tcompensation

Shall pressure and temperature measurementbe performed?„on“: current pressure and current

temperature of the flow-metering systemare measured.Warning: This function can be set only if acorresponding measurement module is

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Menu item Designationinstalled.

„off“: No pressure and temperaturemeasurement.Warning: If pressure/temperaturemeasurement has been switched off, nocorrection factor or volume value can becalculated.

Ambient p/Tregistration

Shall an ambient pressure /temperaturemeasurement be performed?“on”: the current pressure and temperature atthe inlet are measured . WARNING: this functioncan only be activated if this measuring modulehas been installed.“off”: no pressure and temperaturemeasurementWARNING: if the pressure resp. temperaturemeasurement is not activated, there can’t beany correction factor resp. volume value becalculated

corr. meas. Shall a correction factor be transmitted for apre-set flow?„on“: After elapsing the “Work” period, the

correction factor for pre-set flow or theentire measurement volumes is logged(printer, interface, USB-drive). See Chapter7.2.6, too.

„off“: No correction factor logging .corr. stand. Shall the correction factor related to standard

status be transmitted for pre-set flow?„on“: After elapsing of the “Work” period,

the correction factor related to standardstatus for pre-set flow or total volumes islogged (printer, interface, USB-drive). SeeChapter 7.2.6, too.

„off“: No standard correction factor logging.

corr. amb. Shall the operation correction factor related tothe air inlet estimated conditions (the averageair pressure value before and after sampling onthe air inlet and the average value of flowmetertemperature - 3K) be transmitted for the pre-setflow?„on“: After the “Work” period elapsing, the

correction factor related to estimatedconditions on the air inlet for the pre-setflow or for total volumes is logged (printer,interface, USB-drive. See Chapter 7.2.6,too.

„off“: No operation correction factorlogging.

vol. meas. [m³] Shall the measured volume value be logged?„on“: After the “Work” period elapsing, the

volumes actually transported at themeasured environmental conditions arelogged (printer, interface, USB-drive). SeeChapter 7.2.6, too.

„off“: No volume measured value logging.vol. stand.[m³] Shall the value of standard volume be logged?

„on“: After the “Work” period elapsing, thestandard volumes (volumes at the pre-setstandard statuss) are logged (printer,interface, USB-drive), corresponding to thevolumes actually transported (at thedetermined environment conditions). SeeChapter 7.2.6, too.

„off“: No standard volume values logging .vol. amb. [m³] Shall the value of operation volume be logged?

„on“: After the “Work” period elapsing,operation volumes (volumes related to

Menu item Designationestimated conditions on the air inlet(average value of air pressure before andafter sampling on the sampling head andaverage temperature - 3K of flow-meter))are logged (printer, interface, USB-drive).See Chapter 7.2.6, too.

„off“: No operation volume logging.P/T meas Shall the average pressure and average

temperature be logged during sampling?„on“: After the “Work” period elapsing,

average pressure and average temperatureduring sampling are logged.

„off“: No average pressure and averagetemperature logging .

Ts (°C) Here the standard temperature can be entered,to which standard correction factor or standardvolume calculation is related. By pushing thekey „F“, the sign can be switched between „+“and „-“.

Ps (mbar) Here the standard pressure can be entered towhich standard correction factor or standardvolume calculation is related.

Flow through Here the flow can be entered, which is set in theflow-metering system. This value is required tocalculate the measured volume or the standardvolume value.

P (uncal) (mbar) Here the pressure measurement can becalibrated. The measured value withoutcorrection is displayed. The correction factor iscalculated by entering the currentenvironmental pressure considered in all othercalculations.Warning:During the input, the blower should be switchedoff. The displayed value of air pressure (pM) candiffer from the pre-set pressure value by +/-4mbar! If semi-automated flow calibration is, aswell calibration of the pressure sensor isautomatically performed.

calibration Start of the calibration procedure for accuratesetting of the required flow value. Refer also tochapter 7.2.6.3. Flow calibration.

8.2.7.4 Flow calibration

When starting up the calibration procedure, setting of anoperation volume flow (500 litres per minute - this is theoperation volume for which the DIGITEL pre-separator isdesigned) can be carried out, using additional calibratedflowmeter via the menu and semi-automatically. All necessarycalculations are performed by control, while calibration isdistinctly streamlined.For an accurate procedure description, see chapter 6.3„Performing calibration“.

8.2.7.5 Wind measurement

Enter „2“, = => the display switches to the sub-menu of windmeasurement:

wind meas. off

If you have activated wind measurement, some additional menupoints will appear:

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wind measurement onGill Sensor offwind controlled offStop time bl.off offWind data onsend interval : 0030

Menu item Designation Windmeasurement

Shall wind data measurement be performed?„on“: The wind data measurement is

activated.Warning: This function can only be set if a

corresponding measurement module isinstalled.

„off“: No wind data measurementGill Sensor Is a Gill – windsensor connected as a

windsensor?„on“: A Gill windsensor is connected to the serialinterface RS232. The serial interface is allocatednow and can’t be used for controlling / datapolling any more.„off“: No Gill – windsensor is connected. The windmeasurement will be carried out by awindconverter print Wind-03

Wind control Shall sampling period be wind controlled?„on“: The sampler operation will be controlled

by wind measurement. The sampler will run ifthe wind speed exceeds the limit values andwind direction is in the defined operatingdirection (+- half of operating angle)(provided that the sampler is in „WORK“-status). If one of the conditions is not fulfilledresp. the „work“ period is elapsed, theblower will be switched off again. To preventa frequent on- and off switching, the blowerwill be switched on for about 2 minutes afterswitching on (independent of theinformations resulting from themeasurements of the wind data). Anexeption of this 2 minutes interval forms theachievement of the end of the „work“ period.In this case the blower will be switched offimmediately.

„off“: No wind controlled operation of thesampler

Stop time bl.Off

Stop time at status blower off? Should theaccumulation of the work time be stopped whenthe blower is turned off?„on“: the work time will only be updated when theblower is turned on by the wind control. So it willbe accomplished that each changed filter will beflown for the time of the set work time.„off“: the work time will be updated independentof the wind control.

Wind data Shall measured wind data be logged?„on“: Measured and averaged wind data will

be stored after a 5 sec. interval. Logginginterval is independent of operating state.

„off“: No wind datal logging.Send interval Here, the wind data logging interval (in minutes)

can be entered, to which wind measurementmode is related. The logged wind data will beaveraged over the dermined time.

If you have activated “wind controlled”, some additional menupoints will appear:

wind measurement onGill Sensor offwind controlled on

Stop time bl.off offwind data onsend interval : 0030speed threshold: 1,0operating angle: 060operating dir. : 000averaging time : 30

Menu item DesignationSpeedthreshold

Here, the limited wind speed in m/s can beentered, to which wind controlled operating modeis related. The sampler will run if the wind speedexceed the threshold and wind direction is in thedefined operating direction (+- half of operatingangle).

Operatingangle

Here is defined how the operating angle is relatedto the wind direction. If the average value of themeasured wind direction value lies within therange of the angle that is covered by thepreferential wind direction + - half of the operationangle, the blower will be activated.

Operating dir Here is defined which wind direction is thepreferential one. Mind that the wind direction isaligned to the north correctly. The prefential winddirection shows the direction from which the windblows if the HVS should be activated. The inputwill follow in degrees.

Averagingtime

Here is defined how long the measured wind datashould be averaged before they are utilised forcontrol of the HVS. The input will follow indegrees. This averaging time don’t affectaveraging of wind data logging.

8.2.7.6 Special settings

Enter „3“==>the display changes into the sub-menu of specialsettings:

0 Instrument Id.1 change pin code2 Pin-Code timeout3 IP - Address

In this menu, you select among entering „instrumentidentification“, „change pin code“ or „pin-code Timeout“, i.e. thetime elapsing after leaveing from the program menu until Pin-Code is required upon new attempt to enter the program menu. Enter Exit = => leave the data input.Valid input range: 0, 1, 2.

8.2.7.6.1 Instrument ID

Enter „0“ ==>the display switches to instrument identificationsub-menu.

Instrument Id. off

When you log the instrument identification upon every samplingtime transmission, you have to activate the instrumentidentification:Warning: The first 3 characters of the instrument identification are

transmitted in the Bayern-Hessen protocol in „series no.“field. If the Bayern-Hessen protocol is applied, the firstthree characters have to be numerical or blank.

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Set an instrument identification to „on“ = => key „0“, then ==>“Enter” .When you never have set an instrument identification, „-“appears in the first place of the third column, while the cursorflashes below the character. Otherwise the last enteredinstrument identification is displayed and the cursor flashesunder the first character.

Instrument Id. on

ABCDEFGHIJKLMNOPQRST

Now you can define an instrument identification using maximum20 characters.By using the keys „0“ and „8“, you can select among all capitalletters or figures and three special characters. When youselected the required character, you may proceed using cursorkeys to the next position. If the identification of your instrument iscompletely defined then “Enter” = => the input will be accepted.

Change pin codeIn this menu, you can program an own PIN code. Enter yourcurrent PIN code first. Then enter the new PIN code twice. Thenew PIN code is only accepted if it is entered twice andconfirmed.

old Code: ----new Code: ----new Code: ----

Enter“Exit” , = => leave the input any time, without changing thecurrent PIN code.Valid input range: from0000 to 9999

PIN code timeoutIn this menu, you define the time in seconds in which the input ofthe PIN code is still activated after leaving the programmingmenu. If you enter the programming menu within the set periodof time again you are not required to enter the PIN code.If you wish not to set the PIN code requirement before enteringthe programming menu, you have to program the time to 9999seconds.The factory setting of the code is 9999.

Pincode Timeout:0030

Enter “Exit”, = => leave input without changing time.Valid input range: 0000to 9999

8.2.7.6.2 IP - Adresse und Gateway - Adresse

When you enter „3“ the display switches into the submenu: IP-Address. Here you can put in the IP address and the gateway ofthe control system.

IP - Address192.168.100.118Gateway:192.168.200.250

The input will be accepted by using the ENTER key.With the BACK key you can leave the input without a change ofthe set values.

Attention: The new IP address will be accepted not until a newstart!

8.2.7.6.3 Protocol configuration

Enter „2“, = =>the display changes in the sub-menu of protocolconfiguration:

AK-protocol offBayern-H.-prot. offbaud rate 009600

Now you can select the required protocol format for the hostinterface:AK-protocol: special protocolBayern-Hessen-P.: Bayer-Hessen protocol (1 200 Baud)When you select no protocol type (both are „off“), the DIGITELprotocol will be applied (see the annex).

AK-ProtocolHere you define that the AK protocol will be used forcommunication with the host system.

Bayern-Hessen ProtocolWhen you set the „Bayern-Hessen protocol on“, the displaychanges to the Bayern-Hessen protocol sub-menu setting:

AK-protocol offBayern-H.-prot. onBay-Hes-P. B offGSM Modem offService offBlower load offact. collecttime offPress. meas. offTemp. meas. offact. pA offact. TA offact. corr. meas. offact. corr. std. offact. corr. amb. offcollecttime offp avg. offTemp. avg. offp avg.amb offT avg.amb. offavg. cM/VM offavg. cs/Vs offavg. cA/VA offrepeated print offBayern-H. Id. 310

Bayern-Hessen Protocol BSetting the „Bay-Hes-P. B on“, determines that a Bayern-Hessenprotocol special extension is applied (2 400 Baud, variedoccupation of operation-status bit, see the annex).

ServiceSetting „Service on“, determines that a special input is inquiredand that, at any status inquiry, the input status is determined onthe host computer.

Output modeHere you define which values are to be shown in the protocol.

Blower load offact. collecttime offPress. meas. offTemp. meas. offact. corr. meas. off

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act. corr. std. offact. corr. amb. offCollecttime offp avg. offTemp avg. offp avg. amb. offT avg. amb. offavg. cM/VM offavg. cs/Vs offavg. cA/VA off

blower load: act. blower loadact. collecttime: elapsed collect time for the actual filterPress. meas.: actual pressure in measurement systemTemp. meas.: actual temperature in measurement systemact. corr. meas.: Actual correction factor for pre-set flow

through measurement system related tomeasured environmental conditions inmeasurement system.

act. corr. std.: Actual correction for pre-set flow throughmeasurement system related to standardconditions.

act. corr. amb.: Actual correction factor for pre-set flowthrough measurement system related toestimated conditions on the air inlet (airpressure average value before and aftersampling on the sampling head and flow-meter average temperature - 3K).

collecttime: Elapsed collect time of the last completedfilter. This value will be shown only one timeor until „C“ command is received (dependentof the parameter „repeated print“). If no „C“command is received the value will beshown until completion of the actual filter.

p avg.: Average pressure conditions in themeasurement system of the last completedfilter during the sampling periode. This valuewill be shown only one time or until „C“command is received (dependent of theparameter „repeated print“). If no „C“command is received the value will beshown until completionof the actual filter.

Temp avg.: Average temperature conditions in themeasurement system of the last completedfilter during the sampling periode. This valuewill be shown only one time or until „C“command is received (dependent of theparameter „repeated print“). If no „C“command is received the value will beshown until completionof the actual filter.

p avg. amb.: Average pressure conditions on the air inletof the last completed filter during thesampling periode (air pressure average valuebefore and after sampling on the samplinghead). This value will be shown only one timeafter filter change (otherwise value “0”) oruntil „C“ command is received (dependent ofthe parameter „repeated print“). If no „C“command is received the value will beshown until completion of the actual filter.

T avg. amb.: Average temperature conditions on the airinlet of the last completed filter during thesampling periode This value will be shownonly one time (otherwise value “0”) or until„C“ command is received (dependent of theparameter „repeated print“). If no „C“command is received the value will beshown until completion of the actual filter.

avg. cM/VM:. Average correction factor for pre-set flow orvolumes actually transported through

measurement system of the last completedfilter related to measured environmentalconditions in completion of the actual filter

avg. cs/Vs: Average correction factor for pre-set flow orvolumes actually transported throughmeasurement system of the last completedfilter related to standard conditions. Thisvalue will be shown only one time or until„C“ command is received (dependent of theparameter „repeated print“). If no „C“command is received the value will beshown until completion of the actual filter.

avg. cA/VA: Average correction factor for pre-set flow orvolumes actually transported throughmeasurement system of the last completedfilter related to estimated conditions on theair inlet (air pressure average value beforeand after sampling on the sampling headand flow-meter average temperature - 3K).This value will be shown only one time oruntil „C“ command is received (dependent ofthe parameter „repeated print“). If no „C“command is received the value will beshown until completion of the actual filter.

Repeated printHere you define if some values will be shown in the protocol onlyone time or until „C“ command is received. If no „C“ command isreceived the value will be shown until completion of the actualfilter.

IdentificationHere you set the identification (measurement instrument ormeasured value identification address). It is supposed that theset identification corresponds to the first measured value to betransmitted. The following measured values are provided with thenext higher identification address (see the above-shown chart).Ensure that the instrument address for HVS is set as „310“. If noidentification has been entered, „310“ is similarly accepted foridentification of the first measured value.Valid input range: from000 to 994

Remote controlIf you operate the instrument using an external controller and youlose connection to this controller, you have to communicate withthe HVS controller that has to be re-switched into theautonomous operation status. For that there is an applicablemenu point which is only visible if the remote control is activated.Enter key „2“ or „3“ (depending on internal program status),= =>autonomous operation mode.

0 USB config.1 Operating config2 Protocol config.3 Rmt Off

or0 USB config.1 Operating config2 Rmt Off

Implementing the baud rate

According to the chosen record certain baud rates are effected:DIGITEL record: 9600 baudAK - record: 2400 baudBayern Hessen record: 1200 baudBayern Hessen record B: 2400 baud

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The baud rate can also be implemented manually.This baud rate is valid for the implemented record only and willbe put back at the next record change to the basic modes.

Valid input values: 1200, 2400, 4800, 9600, 19200, 38400,57600, 115200

8.2.8 Software version

The installed software version and the DMCU no. are displayed.

SW-Version: H00.38UnikNr :0000002B349C

Enter “Exit” key, = => leave the display.

8.2.9 Mode printing

The current program settings are printed, such as:

Settingsare printed

After exchange of printing a listing, the following display willappear and the actual one will disappear.

8.2.10 Default (factory setting)

All adjustable parameters are reset to the factory settings.

0 default

Enter the key „0“, = => all settings are reset.

8.2.11 Language

Here you can select the language:

0 german1 english

2 french

All available languages will be displayed in english independentof the implemented language.After having chosen a language, all displays and prints ( printer,ext. interface, USB-drive) appear in the requested language.

8.3 RecordFilterdata, status messages and wind data are memorised in theinternal flash module of the control. Filterdata, status messagesor failure indications are memorised in the logfile, wind data inthe wind data files. In each file on to 1000 entries are beingrecorded. These entries can be displayed, printed by the printeror transmitted on the USB drive.

Using key “4” will get you into the following menu:

Selection:0 Logfile1 Winddata

0 ... In the logfile filterdata, cartridge data and status messagesare stored

1 ... Storing of the wind data

After selection of the record following activities could be carriedout:

0 show record1 search entry2 print record3 store on USB drive4 delete record

In this menu item the last shown status messages and conditionchanges could be seen on the display or could be printed on theprinter. Each entry event is dated which means at what time anddate it occurred.Therefore an entry can also be searched by time and date.

8.3.1 Display record

Using key “0” will get you into the following menu:

(17) / (34)*Mo 04.05.09 10:00:00Filter data :Collecttime (min) : 23,4

In this menu item the status are shown on the displaychronologically. Each entry of an event is dated ( time and dateof occurence). So you can survey up to 1000 records ( statusmessages).With the “B” key you can move to the more updatedevents, with the “A” key to the older ones. If the updated eventnumber is shown and you use the “B” key another time, then theoldest event is displayed and when you push the “A” key again,the updated event is shown.At some events the 4 lines of the display won’t be enough toshow all the information. These events are marked with ***behind the event number and can be scrolled up and down bythe keys “0” and “8”.

8.3.2 Searching for record entry

Using key„1“ will get you into the following menu:

In this menu you can search for a record entry depending ondate and time.The most recent entry according the searched time is displayedthen.

Searching for date:DD.MM.YY hh:mm:ss27.03.09 10:00:00

8.3.3 Print record entry:

Using key „2“ will get you into the following menu:

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In this menu the record can be transmitted to the printer

Rec. Printing of1 DD.MM.YY hh:mm:ss 27.03.09 10:00:002 as of last print

1 ... All entries are printed as of the implemented time

2 ... All entries are printed as of the last prints

8.3.4 Store record entry :


In this menu the record can be transmitted on the USB drive.

Rec. save of1 DD.MM.YY hh:mm:ss 27.03.09 10:00:002 as of last save

1 ... All entries are saved as of the implemented time

2 ... All entries are saved as of the last saving

8.3.5 Delete record


Delete record

0 ... confirm

0 ... The record is deleted

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Sampling probe PM10 and PM2,5



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9 Sampling probe PM10 andPM2,5

General informationThe sampling probe Digitel DPM10/30 or DPM2.5/30 is designedas a single-stage impactor. The median point Dp50 („cut point“)of the probe separation plot is of an aerodynamic particle of10 µm or 2.5 µm diameter. A flow rate of 500 l/min. (30 cubicmetres per hour) is achieved.In order to keep the probe weight low, it is made of aluminium.All surfaces are treated with a the proven finishing process„Ematal“. Ematal surfaces have shown no variation effects on thedust substances subject to analysis so far.The impactor plate can be taken out of the sampling probe whencleaning of the sampling probe is required. To avoid surfa eicing of the baffler at low temperatures, the sampling head canbe heated (thereby the high-volume sampler Digitel DHA-80should be equipped with an option „Special heating“).

The PM10 air inlet tube fulfills the conditions of equivalence ofthe EN directive 12341. Figure 7: DPM10/30/00 Plan

Heating plate

Baffle pot

Heatingcable

2 Snapclosings

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9.1 Separation performanceDPM 10/30/xx

Figure 8: DPM10/30/00 pre-separation performance

Pre-separation of DPM 10/30/00 at 15°C, 1013 hPa

4,00

6,00

8,00

10,00

12,00

14,00

16,00

18,00

10 15 20 25 30 35 40 45 50 55 60

Flow rate [m3/h]

d50

[µm

]

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DPM 2,5/30/xx

Figure 9: DPM2.5/30/00 pre-separation performance

Pre-separation of DPM 2,5/30/00 at 15°C, 1013 hPa

1,50

2,00

2,50

3,00

3,50

4,00

4,50

5,00

10 15 20 25 30 35 40 45 50 55 60

Flow rate [m3/h]

d50

[µm

]

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9.2 Operation/maintenanceTo avoid the release effects of separated rough particles thebaffler of the impactor plate has to be permanently covered with athin grease layer. It has to be renewed periodically. The cleaningperiod depends on the proportion of rough dust in the ambient airsampled.It is recommended to clean the impactor plate every 14 samplingdays, when the average total dust contents (TSP) at theinstallation site is approx. 70 to 80 µg/m³. With a lower TSP, thecleaning interval may be longer. An option to extend the cleaninginterval results from the moveable impactor plate fitted on theheater holder by rotation of approx. 15° (about 2 cm). Theacceleration nozzles point at the still „clean“ areas betweencircularly deposited rough dust layers of the previous samplingoperation.

The impactor plate can be simply removed by opening the probeupper part. It has to be cleaned, using a clean cloth, and thebaffler area has to be greased regularly. About a 5 cm long bandof grease should be equally spread on the area, using a spatula.To facilitate this maintenance, the impactor plate can be replacedby a substitute plate prepared in the laboratory.The acceleration nozzles, the liners of the probe casing, as well asa liner behind the impactor plate have to be cleaned underabove-mentioned TSP conditions, after 30 sampling days.At a time of longer sampling in foggy environment, it is advised tocheck the impactor plate for water condensation.

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10 Failures/troubleshooting

10.1 Volume flow functional circuit

10.1.1 Blower does not run up afterswitching the sampler on.

Possible causes:1. Failure power electronics:The dial pointer „Motor load“ overruns the entire scale. Whenreaching the range end, the failure indication status „Bloweroverloaded“ is displayed.Cause:Failure in the power electronics (frequency convertor) and/or theblower. Control electronics is operational.Failure elimination:Remove the compartment cover of the suction unit/frequencyconvertor.a) Check whether protection logics of the frequency convertor

has responded. The corresponding failure indicationmessage appears on display of the frequency convertor.Withblowers of a negligible running time (1 to 2 years), afterresetting the frequency convertor, there can be immediatelytried a new sampler start-up using the main switch of theinstrument. Mind keeping the lower compartment still open.Upon running up, check the blower for suspect noisegeneration, while the display of the frequency convertor hasto show the output voltage frequency (210 Hz as amaximum).

b) With older blowers (more than 2 years), first check the blowercarefully before re-starting.

c) If the frequency convertor gets into the failure indicationstatus immediately after trying to switch the sampler on andthis occurs also with the hooked off blower, the frequencyconvertor is defective. This unit should be sent to the factoryto get repaired (resp. replaced).

2. Possible operating error:Time program is not in the “Work” status.Control signal was interrupted by the rocker switch „Bloweroff“ (LED „Blower switched off“ flashes).Sampler is in „Remote control“ mode.Rocker switch „Changer off“ is in the position „off“, thecorresponding LED „Changer switched off“ flashes, and theLED „Changer in operation“ is lit (the switched off changerprevents the next filter exchange to be performed, and theblower remains switched off for this period of time).

3. Heavy contamination:The flow meter glass measurement tube is heavilycontaminated, e.g. after the sampler ran in a heavily exposedenvironment without an inserted round filter for a longer timePlase remove and clean the glass measurement tube.

4. Control systema) The printed circuit board (PCB) „flow control“ is defective(replace the board). b)The infrared photo-sensors configuration on the flow meteris defective (call the service).

10.1.2 Changing mechanism functioncircuit

10.1.2.1 Not-flown filters on the tray of filterholder

At the bottom changer magazine on the holders collection tray ofthe filter holder, there are filters with white, apparently not flownfiltersPlease, check whether the filter is in the changer transport fork(proceed according to chapter 6.2.1 items 8 to 10 b, first insertionof the filter); or:

10.1.2.2 Filter holders do not fall

Please, check filter holders for sticky or worn-out rings (chapter3.4.3 Replacement of sealing rings).Check if moisture does not penetrate into the instrument (nomains-cable bushing fitted, the door does not seal correctly).

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11 Application examples

11.1 Wind-controlled sampling

Wind-controlled sampling for the determination of dustsubstances, using the Digitel aerosol sampler DHA-80.With usual imission monitoring, measurement data are determinedaerea wide in relation to the installation site. These measurementdata are evaluated in relation to the conceptional formulation(immediate values related to the installation site, hourly, daily andyearly average values etc.). An additional allocation of therecorded data and a potential source is not possible in themajority of cases. Upon special conceptional formulationauthorities frequently put particular demands upon imissionmeasurement in order to allow accurate statements on themeasured dust compounds origin. This could only be achievedwith a very dense and stable measurement network.Via wind-controlled sampling, using two Digitel aerosol samplerswhich are installed in ambit of a special polluter on localconditions, it is also possible to take the weather conditions inconsideration. So it is easier to meet requirements which has toconsider the securing of the representiveness of the probe of thetotal lot. (Accreditation Law) Herewith a considerableimprovement of statement and reproducibility is achieved for therecorded data.Moreover, this measurement method also allows preciseprediction of imission burden on installation sites where nomeasurements are carried out. In addition to that, separatemeasurement values can be dedicated to a certain polluter.Using the described measurement arrangement, the followingrequirements are met:- independent installation from the emission source;- only air from the required direction is sampled;- logging of measurement cycles;- more exact, more specific and more sensitive statements on

samples.Additional considerable benefits of wind-controlled imission

monitoring:- considerable less filter material has to be evaluated;- minimum capacity for installation and instruments;- simple and reliable handling;- price-friendly upon acquisition and operation.

Main wind direction

Device M1 Device M2Emitter

As illustrated above, aerosol samplers have been installed alongwith meters for wind velocity and wind direction.The control takes the data into account transmitted by thewindmeter. Only then the air is sampled if wind arrives at a certainrate from a pre-set direction.

M1 M2

Hauptwindrichtung

A2A1

W1 W2

The instrument M1 is installed in the main wind direction beforethe polluter. The north of the windmeter is directed towards thepolluter. The instrument M2 is installed in the main wind directiondownstream the polluter. The north of the windmeter points awayfrom the polluter. The appropriate distances A1 and A2 to thepolluter determine opening angles W1 and W2.The complexity for installation of wind-controlled aerosol samplersis limited, as the wind-metering instrument is plugged directly tothe Digitel HVS. The aerosol sampler supplies control and heatingpower required by the windmeter and is internally equipped withan arrester. For this just one power connection required.The dust microprocessor control of the sampler processes datatransmitted by the windmeter and controls correspondingly to theblower parameter.The required opening angle for the wind direction may be within10° and 160°, the limit for the wind velocity response can be set in0.5 m/s steps within the range of 0.5 m/s and 5 m/s. Additionally,the period of time to the average out the measured wind directionand velocity can be set in two minutes steps from 2 minutes up to32 minutes.The averaged data of the wind-direction and wind-velocity areperformed according to the Austrian standard ÖNORM 9490 part2.The reached status and failure indication messages are logged inan integrated printer and in an additional serial interface (RS232C).

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12 Communication

12.1 D-Sub-9 Pin allocation(terminal interface)

Pin allocation:

Pin No. Signal2 Receive Data (RxD)3 Transmit Data (TxD)5 Ground (GND)7 Request to send (RTS)8 Clear to send (CTS)9 +12V (Res.)

To connect the Digitel HVS with a PC (9-pole connector D-Sub),a „crossed“ cable (zero modem) is required.

12.2 Digitel protocol

12.2.1 List of control commands

Controlcommand

Designation

hvs-rmton Remote control on (this command is valid,only if remote control is off)

Hvs-rmtoff Remote control off (this command is valid,only if remote control is on)

hvs-status Status inquiry; status response ispermanently transmitted, independently ofwhether remote control is on or off

hvs-f Filter changing in progress; this commandis valid, only if remote control is on

hvs-work Changer in the “Work” operation status; thiscommand is valid, only if remote control ison

hvs-wait Changer in the “Wait” operation status; thiscommand is valid, only if remote control ison

hvs-pause Changer in the “Pause” operation status;this command is valid, only if remote controlis on

hvs-einst Output current settings of the instrument

12.2.2 Interface format

Format: 1 startbit, 8 databits, 1 stopbit, no parityBaudrate:2 400Handshake: RTS, CTS

12.2.3 Control commands description

Remote controlThe first character of the control command is always a startcharacter (#). The following command has to end up with acontrol character CR and LF (Carriage return and Line feed).Response of HVS always starts with a start character (!) followedby a response and final CR, LF.When HVS receives an unknown command, it responds withHVS-NACK!The control characters can be written as capital or small letters.

Host:

# (start character) control character 1 control character 2... control character N - 1 control character N CR LF

Response by HVS:Response character 1 Response character 2 ...Response character N - 1 Response character N CR LF

HVS-RMTONHost:#HVS-RMTON

The command switches the HVS into remote control mode. Inthis mode, the control status of the HVS can be controlled by thehost.Response from HVS:EXTERN

HVS-RMTOFFHost:#HVS-RMTOFF

The command switches the HVS to the normal operation mode.Response from HVS:INTERN

HVS-STATUSHost:#HVS-STATUS

The command causes the HVS a transmission of a statusmessage.Response from HVS (depending on operation status):

Status:Th 14.05.09 14:23:54WorkBlower onMotor load: 67%


Moreover, failure messages are additionally transmitted, if so.The range of the transmitted status information corresponds tothe one specified on the printer for output.It should be noted that each line has to end up with CR, LF. Thelength of the response string is not defined!

HVS-FHost:#HVS-F

The command switches the HVS into the Pause status for 7seconds. After the time elapsing, it is automatically switched toWork and the filter exchange is carried out.The range of transmitted response corresponds to the onespecified in the printer for output.Response from HVS:

Sa 09.05.09 12:00:03

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Blower offCollecttime[min]: 1399,96# Blower on/off : 1paM [mbar]: 929TaM [°C]: 20,0PaA [mbar]: 969TaA [°C]: 17,2cM : 1,053cs( 15/1013) : 0,949cA( 17/ 996) : 0,972VM [m³]: 539,268Vs( 15/1013)[m³]: 492,990VA( 17/ 996)[m³]: 497,842at 512 l/min---------------------------


Sa 09.05.09 12:00:15Blower on

or

Sa 09.05.09 12:00:03Blower off

Collecttime[min]: 1399,96# Blower on/off : 1paM [mbar]: 929TaM [°C]: 20,0PaA [mbar]: 969TaA [°C]: 17,2cM : 1,053cs( 15/1013) : 0,949cA( 17/ 996) : 0,972VM [m³]: 539,268Vs( 15/1013)[m³]: 492,990VA( 17/ 996)[m³]: 497,842at 512 l/min---------------------------

Sa 09.05.09 12:00:10Filter changeSa 09.05.09 12:00:12Last filter in service

Sa 09.05.09 12:00:15Blower on

if the program is completed

Sa 09.05.09 12:00:03Blower offCollecttime[min]: 1399,96# Blower on/off : 1paM [mbar]: 929TaM [°C]: 20,0cM : 1,053cs( 15/1013) : 0,949cA( 17/ 996) : 0,972VM [m³]: 539,268Vs( 15/1013)[m³]: 492,990VA( 17/ 996)[m³]: 497,842at 512 l/min---------------------------


Sa 09.05.09 12:00:15Blower on

or

Sa 09.05.09 12:00:03Blower off



Sa 09.05.09 12:00:12Last filter in service

Sa 09.05.09 12:00:15Blower on

or



If the program is completed

Sa 09.05.09 12:00:12Changer jammed

If the changer is jammed

HVS-WORKHost:#HVS-WORK

The command brings the HVS to the “Work” operation status. Ifthe HVS was previously in the “Pause” operation status, the filterexchange is triggered automatically!The range of transmitted response corresponds to the onespecified in the printer for output.“Response” from HVS:

Sa 09.05.09 12:00:12WORK, ext

or if the HVS was previously in the “Pause” operation status andthe changer was jammed:

Sa 09.05.09 12:00:12WORK, ext

Sa 09.05.09 12:00:12Changer jammed

or if the HVS was previously in the “Pause” operation status andthe last filter was inserted:

Sa 09.05.09 12:00:12WORK, ext

Sa 09.05.09 12:00:16

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Filter change


or

Sa 09.05.09 12:00:12WORK, ext



if the program was completed.

HVS-WAITHost:#HVS-WAIT

The command brings the HVS to “Wait” operation status.The range of the transmitted response corresponds to the onespecified in the printer for output.Response from HVS:

Sa 09.05.09 12:00:12WAIT, ext

HVS-PAUSEHost:#HVS-PAUSE

The command brings HVS to the “Pause” operation status.The range of transmitted response corresponds to the onespecified in the printer for output.Response from HVS:

Sa 09.05.09 12:00:12PAUSE, ext

HVS-EINSTHost:#HVS-EINST

The command causes the HVS to transmit current settings.Response from HVS:Current settings are transmitted to the terminal interface insteadof to the printer.

We 13.05.09 11:42:17version: H00.38Unicate no. 00000009

B438ESE – Ser. No. 00100281Chg.filter at overload onRepeat after 2h offStop time at pwr. fail offsend failure msg. only offblower capacity onblower cap. >=90% offBlower pwr. sens.[%] : 2# Blower on/off on4 day sequence offBayern-Hessen-Prot. onBayern-Hessen-Prot. B onBayern-Hessen-Address: 310curr. blower capacity oncurr. collecttime on

Press. meas. onTemp. meas. onPress. Amb. onTemp. Amb. onact. corr. meas. onact. corr. stand. onact. corr. amb. oncollecttime onp avg. ontemp. avg. onp avg. amb. onT avg. amb. onavg. cM/VM onavg. cs/Vs onavg. cA/VA onrepeated printout onprinter onshort messages offPress./Temp. Corr. Oncs Oncm Onca Onvs[m³] onvm Onva Ontvg. press./temp. ontemp. stand. [°C] 8press. stand.[mbar] 1013press. (ref)[mbar] 995Press. meas. [mbar] 993temp. meas. [°C]: 22,8flow through [l/min] 500Wind meas. auscartridge chang. auspin-code timeout [s] 9999

12.3 Bayern-Hessen protocol Interface formatFormat: 1 startbit, 8 databits, 1 stopbit, no parityBaudrate:1 200 (2 400 Baud in the Bayern-Hessen protocol B

version)Handshake: semiduplex operation, polling methodChecksum: (Block Check Character) XOR of all characters

inclusive STX and ETX with start value 0

Bayern-Hessen protocol Subset for Digitel HVSData inquiry structure

FieldNo.

Startposition

Endposition

Content Description

1 0 0 <STX> Start of Text2 1 2 DA3 3 3 <ETX> End of Text4 4 4 <BCC1> High-Nibble BCC4 5 5 <BCC2> Low-Nibble BCC

Data transmission structure

FieldNo.

Startposition

Endposition

Content Description

1 0 0 <STX> Start of Text2 1 2 MD Protocol ID3 3 5 nn<> Number of

measurementinstruments (01)

4 6 9 nnn<> Measurementinstrument ID

5 10 18 ±nnnn±ee Measurement value

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FieldNo.

Startposition

Endposition

Content Description

<> (blower load)6 19 21 hh<> Operation status7 22 24 hh<> Failure indication

status8 25 35 hhh<>hhh

hhh<>Serial No. ofmeasurementinstrument (000000000)

9 36 36 <ETX> End of Text10 37 37 <BCC1> High-Nibble BCC11 38 38 <BCC2> Low-Nibble BCC

Operation status in Bayern-Hessen protocol (1 200 Baud):Bit 0: Remote control onBit 1: MaintenanceBit 2: End of programBit 3: ---Bit 4: Blower offBit 5: WorkBit 6: PauseBit 7: Filter exchange

Failure indication status:Bit 0: Changer jammedBit 1: OverloadBit 2: Magazine empty

If more than one measurement value is transmitted , the fields 4to 8 are repeated as frequently as the number of measurementvalues is defined.Warning: The first three characters of the instrument ID aretransmitted in the Bayern-Hessen protocol in the block„Seriennummer“ (serial No.). If the Bayern-Hessen protocol isapplied, the first three characters have to be either numericalresp.blank characters.

Bay. Hessen control telegram for Digitel HVS

Control command structure

FieldNo.

Startposition

Endposition

Content Description

1 0 0 <STX> Start of Text2 1 2 ST3 3 5 310 Instrument address4 6 6 x Control command5 7 7 <ETX> End of Text6 8 8 <BCC1> High-Nibble BCC7 9 9 <BCC2> Low-Nibble BCC

Control command:„E“ Remote control on„W“ Wait„B“ Work„P“ Pause„F“ Filter exchange„A“ Remote control off„C“ initialisation of cM, cA, cs, VM, Vs, VA sampling time, filter-

change flag; in the Bayern-Hessen protocol modes 3 and4, the sampling time cM, cA, cs, VM, Vs, VA and filter-change flag values are transmitted until the controlcommand „C“ is received. Herewith it is ensured that thereceiver receives the data.

12.4 AK-ProtocolImplemented control commands

Controlcommand

Description

AREG Ask Register Command – actually implementedEREG Enter Register Command – actually not

implementedSFxx Set Function xx Command – actually not

implementedASTO Ask Storage Command – actually not implementedSSTO Set Storage Command – actually not implemented

Interface formatFormat: 1 startbit, 8 databits, 1 stopbit, no parityBaudrate: 2400Handshake: ---

Control command structureGeneral transmission formatThe first character of a command is always a startchacter (STX).After that the next digits/figures will follow: stationnumber(ASCII), „AREG“, a blank, a two-digit channelnumber (ASCII), ablank, a one-3- digit program register code (ASCII). The string isclosed by a final character (ETX).The answer of the HVS has following format: the first character isalways a start-character (STX). After that the next digits/figuresare as follows: stationnumber (ASCII), „AREG“, a blank, a digitstatus (ASCII), a blank, a one 3-digit program register code(ASCII); length is not defined! The string is closed by a finalcharacter (ETX). Up to three figures could follow. The HVS sendsa „CR“ and „LF“.ATTENTION: Station number for HVS: „4“

Channel number for HVS: „K0“

Request:STX 4 A R E G K 0 PRC PRC ETX

Respond:STX 4 A R E G 0 PRC PRC

Data ETX CR LF

Respond data format:actual blower load: 000-100 till 3 digits [%]act. Temp., avg. Temp. in measurment system : ±25,3 till 5 digits

[°C]act. pressure, avg. pressure in measurement system: 1006 till 4

digits [mbar]Elapsed collecttime for the actual filter, Elapsed collecttime for

the last completed filter: 12317,17 till 8 digits [minutes]cM, cs, cA: 00001,034 till 9 digitsVM, Vs, VA: 12067,345 till 9 digits [m³]

Description of Programm Register Code:

PRC Description0 Actual blower load1

1 Actual temperature conditions in measurement system1

2 Actual pressure conditions in measurement system1

3 Elapsed collecttime of the actual filter1

4 act. cM1

5 act. cs1

6 act. VM1

7 act. Vs1

10 Operation status 2

11 Failure indication status 3

20 Elapsed collecttime of the last completed filter4

21 Average temperature conditions in measurement systemduring sampling periode4

22 Average pressure conditions in measurement systemduring sampling periode4

23 cM of the last completed filter4

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24 cs of the last completed filter4

25 VM of the last completed filter4

26 Vs of the last completed filter4

30 act. cA1

31 act. VA1

40 Average temperature conditions on the air inlet of the lastcompleted filter during the sampling periode (this is anestimated condition: flow-meter average temperature -3K).

41 Average pressure conditions on the air inlet of the lastcompleted filter during the sampling periode (air pressureaverage value before and after sampling on the samplinghead) 4

42 cA of the last completed filter4

43 VA of the last completed filter4

1 Values for PRC: 0 till 2 are actual values. It averages that thisare the last measured values.Values for PRC: 3 till 7, 30, 31 are actually computed values.

1 Operation status:

State Descriptionxxx0 Workxxx1 Waitxxx2 Pausexx0x Blower offxx1x Blower onx0xx No filter changex1xx Filter changed0xxx Remote off1xxx Remote on

2 Failure indication status:

State Descriptionxx0 Changer OKxx1 Changer jamedx0x No blower overloadx1x Blower overload0xx Filter magazine filled1xx Filter magazine empty

3 Values for PRC: 20 till 26, 40 till 43 are values for the lastcompleted filter.

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13 Cartridge changer

There are 2 different operation modes at cartridge changing:

13.1 Cartridge changingsimultaneously with filterchanging:

This operation mode can be chosen in menu item “status times”(6.4.2)The cartridge changing takes place simultaneously with the filterchanging. The times of changing are determined consequentlyby the work and pause periods.The start cartridge can be chosenat this operation mode. For the program sequence there aremore possibillities available:

13.1.1 Continuous operation

Please choose the option “cont. kw. operation on” in the menu "General operation configuration” (6.4.3.2.1)The program changes the cartridges and filter until the magazineis empty.

13.1.2 Option "continue program"

If in menu “general operation configuration” (6.4.3.2.1.) theoption “cont. kw. operation off” is chosen, only one cycle of theprogram is carried out. The program flows all 4 cartridges at onetime and finishes the collection cycle then. The program can becontinued with the option “continue program” in the basic menu(push key “F”). So the program is prolonged with one cycle.

13.2 Timed cartridge changing

The cartridge changing can be timed by the input of the times ofchanging (6.2. start program).

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14 Data recording with USB drive

Filter data, status messages and wind data are stored in theinternal flash module of the control. Filter data, status messagesor failure messages are stored in the logfile. The wind data in thewind file. Up to 10,000 entries are recorded per file.

14.1 Storing of data on the USBdrive

With the plugged-in USB drive the recorded data are storedsimultaneously on the internal memory as well as on the the USBdrive. That is the reason why the USB drive can be removed anytime. (Attention: please consider the mode removal USB ! See13.2 Removal USB drive)

After the removal of the USB-drive the control only stores thedata records on the internal memory. By plugging-in the USB-drive anew the user is asked if all the recorded data should bestored on the USB-drive since this one has been unplugged.

USB drive identified0 save existing data on USB1 save new data only

0 all data, since the last removal of the USB-drive, will becopied on the USB drive.

Subsequently all data coming in after that, will be stored on theUSB-drive.

1...only all new data coming in after the plugging-in will be storedon the USB-drive

14.2 Removal of the USB-drive

The USB-drive can be removed anay time by compliance withfollowing instructions.To get into the program „Mode removal USB“ on the display thebasic menu has to be visual. If you use one of the arrow keys, thedisplay changes into the change-over mode:

USB - driveCan beremovedD ... return

Now the USB-drive can be removed without data loss. After theremoval of the USB drive for a few seconds following displayappears:

USB - driveremoved!

D ... return

14.3 Structure of the data files onthe USB-drive

14.3.1 File name

The storage of the recorded data will be effected in followingfiles. The file names exist of 2 parts. The first two figures indicatethe type of data:

DL... Digitel LogfileFilter data, cartridge data and status messages

DW... Digitel windfileWind data

The second part of the data files is variable. This part has beeneither composed of an instrument ID- number or a fix DMCU-unicum number.The instrument ID-number can be set up in the menu „Specialsettings“ (see xxx).

If the instrument ID-number has been activated, the first fivefigures will be fitted into the file name:

Example instrument ID- number on:

Instrument ID-number = TESTABCD“

Log file - file name = DL_TESTA.datWind file – file name = DW_TESTA.dat

If the instrument ID-number is switched off, the last six figures ofthe unicum number are fitted into the file name:

Example instrument ID-number off:

DMCU – unicum number = 0000001B3298

Logfile – file name = DL1B3298.datWindfile – file name = DW1B3298.dat

14.3.1.1 Logfile DL_xxxxx.DAT

The data in the file DL_xxxxx.DAT are saved in a table. Asseparators between the columns, the Tab character (HT, 09H) isapplied. The line break is activated using CR, LF.For example, after formatting on the HVS, the file looks asfollows:

Event Date/ time Samplingtime (min.)

paM [mbar] TaM [°C]

pA [mbar] TAestimated[°C]

cM cs (15°C /1013 mbar)

cA

VM (512l/min) [m³]

Vs (15°C /1013 mbar);(512 l/min)[m³]

VA (512l/min) [m³]

Column: DescriptionEvent status information (Blower on, Work

etc.)Date/time year, month, day, hour, minute,

secondCollecttime inserted filter sampling time in

minutespaM average air pressure during sampling

time in mbar at measurement tubeTaM average air temperature during

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sampling time in °C at measurementtube

pA average value before and aftersampling of air pressure in hPa at inletresp. pre-separator

TA average air temperature duringsampling time in °C at inlet resp. pre-separator

CM flow rate correction factor on themeasurement tube for averagepressure and temperature conditionsduring the sampling time

cs (15°C/1013 mbar) flow rate correction factor related toentered standard conditions

cA air flow correction factor on pre-separator

VM transported air volume in cubicmetres (related to determinedmeasurement values on themeasurement tube)

Vs (15°C/1013 mbar) air volume that would have beentransported in standard conditions;temperature (15°C) and pressure (1013 mbar) depends on setting„standard temperature“ and„standard pressure“ during theformatting procedure.

VA air volume to be transported duringthe sampling time through a pre-separator

14.3.1.2 Windfile DW_xxxxx.DAT

The data file DW_xxxxx.DAT is set only when wind measurementis activated. Data in the file DW_xxxxx.DAT are saved in a table.As separators between the columns, the Tab character (HT, 09H)is applied. The line break is activated with the use of CR, LF.After formatting on HVS, the file looks as follows:

Date/time Wind direction(grade)

Wind velocity(m/s)

Blast (m/s)

Column descriptionDate/time Year, month, day, hour, minute, secondWind direction Average wind directionWind velocity (m/s) Average wind velocityBlast (m/s) Maximum wind velocity during time of

averaging

15 Remote DHA-80 via theInternet:

The control system of the High Volume sampler DHA-80includes a FTP - and a HTTP- server.

The FTP - server enables a parameterisation of the High Volumesampler by transferring the INI - file. For the status check theFTP - server provides a status-, error- and data-file.

Via the HTTP- server an easy remote control and a statusrequest of the High Volume sampler are possible.

15.1 FTP - server

15.1.1 Dial-up

The internet connection can only be effected by means of auser name and password.

User name (Default):DIGITELPassword (Default):default

These default-values are set up factory-made. The user nameand the password can be set up in the configuration file (see14.1.3.4 DMCU.INI). They can be reset to the default values bythe menu item "6.4.6. Default".

Attention:

Before transmission of the control system file please set IP-address (see 6.4.3.2.4.3 IP address / gateway) and instrument ID(see 6.4.3.2.4.1 instrument ID)!

15.1.2 Breaking off connection

The FTP – client can break off the connection and start a newone any time.

15.1.3 Contents of the FTP - server index

15.1.3.1 Status - file "status.dat"

The status-file contains information concerning program status,current blower capacity, current pressure and temperature.

15.1.3.2 Failure indications - "err_file.log"

The failure indication -file contains occured faults such asoverload, power breakdowns or blocked cartridge changer.

Example:

power cut from:Mo 14.02.09 14:09:20until:Mo 14.02.09 14:09:23

Mo 14.02.09 14:15:26 Work

The contents of the err_file.log - files can be deleted by meansof transmission of the file "del_err.txt" with contents "delete".

15.1.3.3 Protocol - file - "hvsdat.dat"

The protocol - file contains all filter data, status messages,settings which were set up for the logging.

Example:

We 13.05.09 10:47:25device id:DEVICE 1filter data:col.-time[min]: 0,02pmM [hPa]: 942TmM [°C]: 24,6kM( 25/ 942) : 1,054

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ks( 15/1013) : 0,948ka( 22/ 940) : 1,046VM( 25/ 942)[l] : 0,879Vs( 15/1013)[l] : 0,790Va( 22/ 940)[l] : 0,871at Q Scale i.: 500,00 l/min

We 13.05.09 10:47:25Work

The contents of the hvsdat.dat – file can be deleted by means oftransmission of the file "del_dat.txt" with contents "delete".

15.1.3.4 Configuration - file "dmcu.ini"

The configuration – file contains all the requested settings whichare necessary for the HVS-control system. These settings can befollowed up in Excel (text, tabs separate) and by overwriting ofthis file the settings are accepted in the control system.

15.1.3.4.1 Specials of the configuration file

Start of a program by input of a start time:

You can start a program when you put in a valid start time in theline "Start-Time" and column "actual Value".

Setting of the requested status times:

The desired value can be put in both lines "Work-Time" and"Pause-Time"and into the column "actual Value".

Changing of the user name and password:

You can set the user name and the password for the Internet-control system in the lines "FTP Username" and "FTP Password"and column "actual Value".

If you changed the user name and the password, you have tostart the the device anew after the overwriting of theconfiguration "DMCU.INI" so that the settings will be accepted.

15.2 HTTP - ServerThe HTTP - server issues a webseite with all current measuringvalues and enables via pushbuttons an easy remote control ofthe High Volume sampler.

15.2.1 Dial-up

The internet communication can only be established by a username and a password.

User name: (Default):DIGITEL_HTTPPassword (Default):default

The user name differs from the FTP – user name by the use ofthe addition "_HTTP".If you take the FTP – user name : "example", Your user name for the HTTP server is: "example_HTTP". Thepassword is the same for both (FTP and HTTP) server!

These default-values are set up factory-made. The user nameand the password can be set in the configuration (see 14.1.3.4DMCU.INI). These values can be be reset to the default valuesby the menu item "6.4.6. default".

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15.2.2 Remote control via HTTP

15.2.2.1 Status request

You can update the contents of the website by clicking on thepushbutton "Status".

15.2.2.2 Activate remote control

You can activate the remote control by clicking on thepushbutton "remote control". The program status first changesif you transmit more commands.

15.2.2.3 Status change

If the remote control is active, you can change the programstatus by clicking on the appropriate pushbutton..

Work ... the program changes into the work - status. At thechange from the Pause status into a filter change takes place..

Wait ... The program changes into the Wait - status. At the status„Wait“ the blower is turned off and a sampling willl not beexecuted. A change into the status „Work“ takes place without afilter change.

Pause ... the program changes into the Pause - status. If youchange from Pause into another status, a filter change alwaystakes place. If the magazine is empty, there can’t be activatedany other status than Pause!

Filter change ... You can execute a filter change any time if themagazine is filled.

15.2.2.4 Turn off remote control

If you turn off the remote control, the control system changesinto the the status before the activating of the remote control.

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15.3 Pressure / temperature correction tablePressure correction for gases at turbulent operation

Calculation of correction factor for measurement instrument applying pressure differing from an original one

c = PePs

++

013.1013.1

....................

c: correction factor to be multiplied with the reading of the flowmeter at calibration pressure Pe and operation pressure Ps

Ps = operation pressure in hPa

Pe = calibration pressure in hPa (indicatedon the measurement tube)

Correction plot applied, if the measurement instrument is calibrated at 1 013 bar absolute, and now applied for another pressure.

correction factor c

Operationpressure in hPa

Temperature correction for gases at turbulent operation

Calculation of correction factor for a measurement instrument applying another temperature than the original temperature:

c = tste

++

273273

....................

c: correction factor to be multiplied with the showed value of the flowmeter at a calibration temperature Te and an operation temperatureTs. If Te = 20 °C, the below plot directly gives the correction factor c

Ts = operation temperature in°C

Te = calibration temperature in°C (indicatedon the measurement tube)

Correction plot applied, if the measurement instrument is calibrated at 20°C absolute, and now applied for a different value of temperature.

correction factor c

Temperature in °C tsFigure 10: Pressure and temperature correction table

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16 Technical dataType DHA-80 DHA-80 in box housing DHA-80 in 19” housingTechnical dataType Field case Box housing 19“ modulePower supply 230 V +6/-10 %; 50 Hz; max.

1700 VA230 V +6/-10 %; 50 Hz; max.1700 VA

230 V +6/-10 %; 50 Hz; max.1700 VA

Fuse 10 A 10 A 10 AConnecting cable 3 x 1.0 mm², 10 A, 250 V 3 x 1.0 mm², 10 A, 250 V 3 x 1.0 mm², 10 A, 250 VInstallation Category II (standard power) Category II (standard power) Category II (standard power)Application range 5 to 40°C; 10 to 90 % RH or

-20 to 40°C; 10 to 95 % RHwith interior heating,maximum operation altitudeof 2000 m above the sealevel*

5 to 40°C; 10 to 90 % RHmaximum operation altitudeof 2000 m above the sealevel*

5 to 40°C; 10 to 90 % RH or-20 to 40°C; 10 to 95 % RHwith interior heating,maximum operation altitudeof 2000 m above the sealevel*

Flow rate (standard) 420 - 600 l/min 420 - 600 l/min 420 - 600 l/min„Volume flow“ Controlaccuracy

< 5 % of FSS < 5 % of FSS < 5 % of FSS

Suction unit, average durability 36 000 h 36 000 h 36 000 hReproducible accuracysettings (according to UMEGreport No. 6-08/00)

+- 0.45% +- 0.45% +- 0.45%

Accuracy of logged standardand measured volumes

<+/- 2% <+/- 2% <+/- 2%

Time programs Work, Pause (0 to 59999minutes each); start timeadjustable using date andtime

Work, Pause (0 to 59999minutes each); start timeadjustable using date andtime

Work, Pause (0 to 59999minutes each); start timeadjustable using date andtime

Outer dimensions (H x W x D) 1 300, 600, 250 mm 1 260, 528, 250 mm 960, 483, 500 mmWeight 65 kg 43 kg 45 kgProtection class IP54 IP50 IP50Filters 15 round filters of d = 150 mm

(flowing area of d = 140 mm);filter material depends on theaim of analysis

15 round filters of d = 150 mm(flowing area of d = 140 mm);filter material depends on theaim of analysis

15 round filters of d = 150 mm(flowing area of d = 140 mm);filter material depends on theaim of analysis

Underpressure at 1,000 l/min. max. 130 mbar max. 130 mbar max. 130 mbarAutomatic filter exchangeChanger failure IdentificationManual filter exchangeEmpty magazine identificationAnalog remote controlRS232C remote controlRS232C loggingOverloading switch-offOperation-hour counterMotor-load indicationMulti-language loggingBattery-backed data memoryBattery-backed clock module (+/- 4 seconds daily) (+/- 4 seconds daily) (+/- 4 seconds daily)Pre-separator heating 30 V; 50 Hz; 60 VA max. 30 V; 50 Hz; 60 VA max. 30 V; 50 Hz; 60 VA max.OptionsPre-separator TSP, PM10, PM2.5, PM1

optionally with integratedheating + excess temperatureprotection

TSP, PM10, PM2.5, PM1optionally with integratedheating + excesstemperature protection

TSP, PM10, PM2.5, PM1optionally with integratedheating + excesstemperature protection

PAH cartridge holderUSB interfaceLog printerEthernet interfaceRS232 interfaceInterface protocols (RS232) DIGITEL, Bayern-Hessen

protocol, customer-specificDIGITEL, Bayern-Hessenprotocol, customer-specific

DIGITEL, Bayern-Hessenprotocol, customer-specific

External weather data logging* Special execution for operation altitudes above 2000 m upon request

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17 Dimension drawings

17.1 DHA-80 in field housing

Figure 11: Dimension drawing field housing DHA-80

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17.2 DHA-80 in 19”-housing

Figure 12: Dimension drawing DHA-80 mounting rack 19"

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18 Appendix

18.1 Wiring diagram DHA-80

Figure 13: Wiring diagram DHA-80

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18.2 short messages (applied abbreviations)When „short messages“ is activated, failure indication and status information are transmitted to the printer using the following abbreviations( by applying a Digitel protocol, also transmitted to RS232 interface):

Abbreviation Standard textWork WorkWait WaitPause PauseWo ex Work externWa ex Wait externPa ex Pause externPF St Power breakdown from:PFEnd Power breakdown until:B off Blower offB on Blower onB xx% Blower load xx %Overl OverloadP End Program completedStart Program startedF chg Filter exchangeLastF Last filter insertedChg j Changer jammedPre F Pre-start filterext Externalint Internal

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18.3 Structure of menu

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Figure 14: Structure of menu

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18.4 EC-Declaration of conformity

in terms of the EC directives

-Machines 89/392/EWG modified by 91/368/EEC and 93/44/EEC, Appendix IIA-Electromagnetic compatibility 89/336/EEC modified by 2004/108/EC-Low potential voltage 73/23/EEC modified by 93/68/EEC

The machine:

Manufacturer: DIGITEL AG, SchweizType: DHA-80No.:Year of manufacture:

has been developed, construed and manufactured in accordance with the above mentioned EC directives, in sole responsibility of

DIGITEL AG, Switzerland and DIGITEL GmbH, Austria

Following tests and test procedures were applied:-Emitted interference: requirement according to Cenelec EN 61326-1: 1997/A1: 1988-Test conducted radio emission according to Cenelec EN 55022: 1998 CISPR16-1-Test electric field strength according to Cenelec EN 55022: 1998 CISPR16-2-Test overtone currents according to Cenelec EN 61000-3-2: 1995/A1: 1998/A2: 1998-Test flicker according to Cenelec EN 61000-3-3: 1995-Interference resistance: requirement according to Cenelec EN 61326-1:1997/A1: 1988-Test Cenelec EN 61000-4-2: 1995/A1:1998-Test Cenelec EN 61000-4-3: 1996/A1:1998-Test Cenelec EN 61000-4-4: 1995-Test Cenelec EN 61000-4-5: 1995-Test Cenelec EN 61000-4-6: 1995-Test Cenelec EN 61000-4-11: 1994

A technical documentation is completely available as well as the operating instructions for the machine in the original German version andin English.

Ludesch, 17. November 2005 Aufschnaiter, Thomas Managing director

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Following reports can be requested from DIGITEL GmbH:

♦ Inspection report VDI♦ Inspection report concerning the developement of the noise level♦ LAI report♦ UMEG inspection report

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19 INDEX

AK-Protocol .................................35, 48Application examples ........................44Assembly .............................................7Bayern-Hessen protocol....................47Bayern-Hessen Protocol....................35Bayern-Hessen Protocol B ................35blower ..................................................6Blower..................................................9Blower off.....................................12, 46Blower on...........................................46Blower overloaded.............................12Blower running...................................12Blower switched off ...........................12CA ........................................................5Change pin code ...............................35Changer handwheel...........................11Changer in operation .........................12Changer jammed .........................12, 15Changer off ........................................12Changer switched off“ .......................11Cleaning...............................................8CM .......................................................5Communication .................................45Connections.........................................6Consumables.......................................8Control commands description .........45Cs.........................................................5Date/time ...........................................30DHA-80 ................................................6Digitel DHA-80 .....................................7Digitel pre-separators ........................22Digitel protocol...................................45Dimension drawings ..........................57DPM10/30..........................................39EC-Declaration of conformity ............63EN 12341 ...........................................19Failure indication messages ..............14Failures/troubleshooting ....................43

Field installation................................... 7filter change......................................... 6Filter change................................ 46, 47Filter changer..................................... 11filter exchange ................................... 19filter holder........................................... 6Filter paper .......................................... 8Filter Preparation ............................... 19Filters ................................................. 19Filterwechsel, Work extern ................ 17Flow calibration ........................... 19, 33flow meter.......................................... 19Function description.......................... 13Fuses ................................................... 8Grease ................................................. 8HVS...................................................... 6impactor ............................................ 39Input of parameter figures ................. 29Instrument ID ..................................... 34Interface format ................................. 45Last filter in service...................... 12, 13List of control commands.................. 45Main switch ....................................... 12Mains cable ......................................... 8maintenance ...................................... 42Maintenance........................................ 8Manual change .................................. 11Mode printing .................................... 37Motor load ......................................... 12Netzausfall ......................................... 15Operating mode................................... 7Operation configuration..................... 31Operation modes............................... 19p (uncal ................................................ 6p/T; ...................................................... 6PA); ...................................................... 6PaA ...................................................... 6paM ..................................................... 6

Pause ...........................................15, 16Pause ==> Work ................................17Period setting .....................................30pM ........................................................6Pressure/temperature correction .......32Programm starten ..................29, 37, 38Programming......................................26Protocol configuration........................35ps .........................................................6Remote control.............................12, 14Safety instructions ...............................5sampling probe ..................................39Sealing rings.........................................8Setting of operation status.................19Special settings..................................34Start“ key ...........................................11Status .................................................26Status change ....................................15Status display.....................................11suction blower....................................12System description ..............................6TaM ......................................................6Technical data....................................56terminal interface................................45Thermo-printer paper...........................8Tightness test.......................................9TM ........................................................6Transport..............................................7Ts..........................................................6Turbine ein ...................................15, 17Turbinenleistung.................................17VA.........................................................5VDI 2463...............................................6VM ........................................................5Vs .........................................................5Wait ....................................................15Wind measurement ............................33Work.............................................16, 17

Documents

Operation Instructions DHA-80 DMCU Hxx.38