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GMI Gasurveyor 6-500 User Handbook Manual

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Gasurveyor
6-500 / 6B-500
User Handbook
1

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Summary of Contents for GMI Gasurveyor 6-500

  • Page 1 Gasurveyor 6-500 / 6B-500 User Handbook...
  • Page 2 Issue 5 21/07/10 Part Number: 42278 GMI welcomes comments on all our publications. Your comments can be of great value in helping us to improve our customer publications. Please send any comments that you have to our Sales Department at GMI. Contact details are provided inside the back cover of this handbook.

  • Page 3: Copyright

    Measurement Instruments Ltd is prohibited. Reverse engineering is not permitted. LIABILITY Every care has been taken in the preparation of this document, but GMI Ltd do not accept any responsibility for errors or omissions and their consequences. Information in this document is subject to change without notice. This document does not constitute a specification or basis for a contract.

  • Page 4: Safety

    The combustion chamber is a flameproof assembly and must not be opened in the presence of a flammable atmosphere. • Gasurveyor 6-500 / 6B-500 instruments are certified as EEx iad IIC T4 (-20 o C < Tamb < 50 o C). BAS01ATEX2292 II 2 G.

  • Page 5: Revision Record

    REVISION RECORD Date Pages Description Of Change Issue 1 New Handbook 01/06/01 Issue 2 To update alarm function 31/10/02 and incorporate 6B-500 configuration in handbook Issue 3 To include effect of 17/07/03 CN 2291 Issue 4 To include Appendix C 20/07/04 (translations) Issue 5...
  • Page 6 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK...

  • Page 7: Table Of Contents

    CONTENTS COPYRIGHT ..............i LIABILITY ..............i MODIFICATION NOTICES ........... i SOFTWARE ..............i DISPOSAL ADVICE ............i SAFETY ................ ii AREAS OF USE ............ii STORAGE, HANDLING AND TRANSIT ...... ii REVISION RECORD ........iii INTRODUCTION ........... 1 GENERAL INFORMATION ......3 Ranges of Operation ............
  • Page 8 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Batteries ................ 8 Disposable Alkaline (LR20) Dry Cell Batteries ..8 Rechargeable Battery Pack ........9 Filters ................9 Liquid Crystal Display (LCD) ........10 Before Use Checks ............. 10 OPERATING INSTRUCTIONS ....11 Measure Mode Operation ...........
  • Page 9 CONTENTS Replacing Alkaline (LR20) Dry Cell Batteries .... 22 Filter Replacement ............. 24 CALIBRATION ..........27 Calibration Validity ............28 ACCESSORIES........... 29 ADDITIONAL INFORMATION ..... 33 Training ............... 33 World Wide Web ............33 TYPICAL OPERATING PARAMETERS ..A-1 Size ................ A-2 Weight ..............
  • Page 10 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK FIELD CALIBRATION ........ B-1 Selectable Ranges in FCM ........B-3 Entering FCM ............B-3 Zeroing the Instrument ..........B-4 Field Calibration Procedure ........B-5 Quitting FCM ............. B-9 Quit And Save Changes ........B-9 Quit Without Saving Changes ........
  • Page 12 Carbon Monoxide, 0 to 1000 ppm • Methane, 0 to 1000 ppm (6B-500 only) As the Gasurveyor 6-500 and 6B-500 have a wide variety of available user selected options, it is not possible to provide an operator handbook specific to each possible...

  • Page 13: General Information

    GENERAL INFORMATION Ranges of Operation LEL, 0 to 100% The LEL range indicates the explosibility of the flammable gas in the sample. This is displayed as a percentage of the lower explosive limit (LEL) of the gas. For methane 100% LEL corresponds to 5% Volume methane in Air.

  • Page 14: Volume Gas, 0 To 100

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Volume Gas, 0 to 100 % This range displays the total volume of a specific flammable gas with respect to air. The calibration gas is shown on the service label and for the purpose of this handbook is assumed to be methane.

  • Page 15: Carbon Monoxide 0 - 1000 Ppm

    GENERAL INFORMATION Carbon Monoxide 0 – 1000 ppm This range displays the parts per million (ppm) Carbon Monoxide content up to 999 ppm. The instrument range is displayed in the top right hand corner of the display as The digital display resolves to 1 ppm CO. The analogue bar graph follows in 40 ppm steps.

  • Page 16: Ppm Methane 0 - 1000 Ppm (6B-500 Only)

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK PPM Methane 0 – 1000 ppm (6B-500 only) This range is used to measure very low levels of gas and indicates the parts per million concentration of the gas in air (1000 ppm is equivalent to 0.1% Volume Gas).

  • Page 18: Construction

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Construction The instrument is housed in a tough, impact resistant, moulded case made of carbon loaded polypropylene. The top panel is protected by a stainless steel top plate covering a toughened glass LCD cover.

  • Page 19: Rechargeable Battery Pack

    Rechargeable Battery Pack OPERATOR MAINTENANCE Filters A number of different filter types are available from GMI. The minimum requirement is a cotton particulate filter and a hydrophobic filter which are incorporated in the probe handle assembly, supplied with the instrument.

  • Page 20: Liquid Crystal Display (Lcd)

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Liquid Crystal Display (LCD) The LCD shows the current gas readings in both analogue and digital form together with operational and status information. The display is protected by a toughened glass cover. Backlighting is provided to enable the display to be seen under low ambient light conditions.

  • Page 21: Operating Instructions

    Alarms, by default, are enabled with the Carbon Monoxide and Flammable LEL instantaneous alarms active. The Gasurveyor 6-500 and 6B-500 instruments feature two operating buttons as shown in Figure 3.1: INST. PUMP...

  • Page 22: Switching On

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Switching On Press and hold Button One to turn the instrument on. This initiates the instruments warm up cycle and switches on the pump. Figure 3.2 displays the warm up cycle for the Gasurveyor 6-500 and 6B-500 instruments.

  • Page 23: Calibration Date Features

    OPERATION Calibration Date Features The Gasurveyor 6-500 and 6B-500 instruments can be configured that, at the end of warm-up and before measuring, the instruments will indicate on the display when the next calibration is due. This will be displayed as month and year, as shown in Figure 3.3:...

  • Page 24: Switching Off

    Changing Range Each single press of Button Two changes the gas range selected. The Gasurveyor 6-500 display cycles through the available ranges in the order LEL/GAS – Carbon Monoxide – LEL/ GAS etc. The Gasurveyor 6B-500 display cycles through the available ranges in the order LEL/GAS –...

  • Page 25: Zero Ppm Methane Range (6B-500 Only)

    OPERATION Zero PPM Methane Range (6B-500 only) A double press of Button Two , when PPM Methane range is selected, zeroes that range. Summary of Button Operation Press and Measure Double Single Press Hold Mode Press Button 1 c t i c t i Toggles Pump On / Off...

  • Page 26: Operator Messages / Fault Flags

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Operator Messages / Fault Flags Various messages can appear on the LCD screen to indicate instrument status. ‘SAMPLE’ This indicates that the pump is running and the instrument is sampling. ‘OFF’ This indicates that the instrument is about to switch off.
  • Page 27 OPERATION ‘ZERO FAULT’ This indicates that the zero is outwith its calibration limits. Switch the instrument off and then on again in fresh air. If the fault does not clear, return the instrument for servicing. ‘BAT’ This indicates that the batteries will soon require replacement.
  • Page 28 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK ‘1’ This message which can also appear after power on, indicates that a calibration data error has been detected. The instrument should be returned for servicing.

  • Page 29: Operator Maintenance

    OPERATOR MAINTENANCE Rechargeable Battery Pack Three battery chargers are available from GMI, a Standard Charger, a Flatbed Charger and a Smart Charger. Standard Charger The GMI Standard Charger takes approximately 14 hours to charge a flat battery. Note: The 4-button instrument is for illustration purposes...

  • Page 30: Flatbed Charger

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Flatbed Charger The GMI Flatbed Charger allows the Gasurveyor’s battery pack to be charged in NORMAL mode, which takes approximately 14 hours to charge a flat battery. The Mode Select Switch can then be set to STAND-BY, where a trickle charge will maintain the battery in a fully charged state of readiness.

  • Page 31: Replacing The Battery Pack

    OPERATOR MAINTENANCE The GMI Smart Charger provides both fast and standard charging facilities and can charge an instrument and spare battery pack simultaneously. Using the standard charging option, a battery pack can be recharged in 12 hours from a fully discharged state. Using the fast charge option a battery pack can be 90% recharged in approximately 60 minutes and fully recharged in 120 minutes.

  • Page 32: Recharging The Battery Pack

    Replacing Alkaline (LR20) Dry Cell Batteries All four batteries should be replaced at any one time and in a safe area. GMI only recommend the use of Energiser or Duracell cells. 1) Loosen the two instrument base screws (4mm hex)
  • Page 33 OPERATOR MAINTENANCE 2) Remove battery cover. 3) Remove the old batteries. 4) Check battery compartment for damage to spring contacts or corrosion on springs. Caution: Under no circumstances should rechargeable batteries be fitted in place of Alkaline batteries. 5) Insert four new batteries observing correct polarity indication in battery compartment base.

  • Page 34: Filter Replacement

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Filter Replacement Hydrophobic and cotton particulate filters in the probe handle minimise the danger of water and dust ingress. Caution: The instrument should never be switched on without suitable filters installed. If a blockage occurs the ‘SAMPLE FAULT’ indicator is displayed.
  • Page 35 OPERATOR MAINTENANCE 2) Remove the cotton particulate filter and discard. 3) Remove the hydrophobic filter. 4) Clean the probe handle to make sure that it is free from dirt and water. 5) Fit a new cotton particulate filter. 6) Fit the hydrophobic filter. The yellow label on the filter fits against the yellow label on the probe handle.
  • Page 36 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK...

  • Page 37: Calibration

    CALIBRATION The instrument has been calibrated for a particular flammable gas mixture. Where any doubt exists the instrument should be returned to GMI or an authorised distributor for calibration. Four methods of calibration are possible: • Field Calibration. See APPENDIX B, FIELD CALIBRATION for further details.

  • Page 38: Calibration Validity

    12 month period can be expected. This is no guarantee, however, as the precise application of the product is unknown to GMI. Individual codes of practice may dictate shorter periods. Regular checking establishes a pattern of reliability and enables the calibration check period to be modified in line with operational experience.

  • Page 39: Accessories

    ACCESSORIES Accessories Supplied with Gasurveyor 6-500 / 6B-500 Instrument 6-500 Part Number 42506 / 42506R 6B-500 Part Number 42506B / 42506BR Part Number Description 42247 Carrying Case 12370/2 Shoulder Harness 12451 4mm Hex. Driver 12712 Clear Sample Line x 1.5 metres.
  • Page 40 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK 13322 Standard Charger / 110V Power Supply (USA Plug) 12888 Standard Charger / 220V Power Supply (Australian Plug) 13179 Standard Charger w/o Power Supply 42121 Flatbed Charger / 240V Power Supply (UK PLug) 42122...
  • Page 41 Carrying Case (Large) ; Probe Handle Assembly ; Probe Handle Adaptor ; Bellows Probe. Note: Large carrying case has space for special probes, e.g. Swan Neck Note: For other sampling probes and accessories, and for calibration gases, contact GMI Ltd.
  • Page 42 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK...

  • Page 43: Additional Information

    ADDITIONAL INFORMATION Training Training courses are available on all our products. Contact our Marketing Department for further details: Tel: +44 (0) 141 812 3211 Fax: +44 (0) 141 812 7820 e-mail: sales@gmiuk.com World Wide Web Visit our web site at www.gmiuk.com...
  • Page 44 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK...

  • Page 45: Typical Operating Parameters

    TYPICAL OPERATING PARAMETERS Typical operating parameters are as follows: Range Resolution Zero Accuracy Range Stability 0 to 10% 0.1% +/- 0.5% 10 to 100% 2% +/- 1% LEL Volume 0 to 100% +/- 2% 1% +/- 1% Gas Carbon 0 to 1000 ppm 1 ppm CO +/- 15 ppm +/-15 ppm + 5% reading Monoxide 0 to 1000 ppm 5 ppm...

  • Page 46: Size

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Size 180mm (7.08”) x 95mm (3.74”) x 105mm (4.13”) Weight 1.7kg (3.75lbs.) with alkaline batteries Operating Temperature C to 50 C (-4 F to 122 Humidity 0 – 95% RH Construction Moulded polypropylene case protected to IP54...

  • Page 47: Power Source

    TYPICAL OPERATING PARAMETERS Power Source 4 ‘D’ size alkaline cells giving approximately 15 hours runtime at 20 C (68 F).. Rechargeble (NiCd) battery pack giving approximately 9 hours runtime at 20 C (68...
  • Page 48 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK...

  • Page 49: Field Calibration

    Field calibration allows simple calibration to be carried out in the field without the use of additional test equipment. Other calibration procedures require the use of the GMI Manual Calibration software or the Workshop System. There are fundementals, in terms of instrument calibration, that should be noted: •...
  • Page 50 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK INST. PUMP RANGE Figure B-1 Button Functions To simplify button operation when calibrating the instrument, an overlay card, shown in Figure B-2, is available and can be placed over the top face of the instrument to identify calibration button functions.

  • Page 51: Selectable Ranges In Fcm

    FIELD CALIBRATION Selectable Ranges in FCM When in FCM the following ranges are manually selectable by pressing Button Two : LEL, Volume GAS, Carbon Monoxide. Entering FCM 1) Switch the instrument on and allow it to complete its warm-up checks. 2) Double press Button One to initiate instrument switch off.

  • Page 52: Zeroing The Instrument

    GASURVEYOR 6-500 / 6B-500 USER HANDBOOK In CAL mode, the instrument buttons have the functions shown in Figure B-4. Press and Single Press Double Press Hold Button 1 Button 2 Figure B-4 CAL Mode Button Functions Zeroing the Instrument 1) Enter FCM. See the previous section ENTERING FCM.

  • Page 53: Field Calibration Procedure

    FIELD CALIBRATION Field Calibration Procedure 1) Zero gas ranges before attempting calibration. See previous section ZEROING THE INSTRUMENT for details. 2) Make sure that the instrument pump is running and the gas range selected is compatible with the calibration gas. Note: A single press of Button One toggles the pump Off / On.
  • Page 54 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK 4) Turn the regulator valve counter clockwise to open the valve slightly. Make sure that the gas is flowing before connecting the sample tubing to the instrument, otherwise an instrument sample fault may occur.
  • Page 55 FIELD CALIBRATION In SPAN mode, the instrument buttons have the functions shown in Figure B-7. Figure B-7 SPAN Mode Button Functions 8a) In SPAN mode, a single press of Button One will produce small incremental changes to increase display reading, or a single press of Button Two will produce small decremental changes to decrease display reading, until the displayed gas value corresponds to the concentration of the...
  • Page 56 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK 9) The instrument display will now return to CAL mode display as shown in Figure B-8. Figure B-8 50% LEL Display 10) Make sure that correct reading is displayed before disconnecting the calibration gas then disconnect...

  • Page 57: Quitting Fcm

    FIELD CALIBRATION Quitting FCM Quit And Save Changes 1) Press and hold Button Two to save CAL data. 2) Double press Button One to exit FCM. Quit Without Saving Changes 1) Double press Button One to exit FCM. Note: When you exit the FCM without saving the new CAL data, the old calibration data remains in the instrument memory.
  • Page 58 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK B-10...

  • Page 59: Operating Instructions

    OPERATING INSTRUCTIONS The following multi-language instructions provide the user with a quick guide to the operation of the . . Gasurveyor 6-500 / 6B-500 instruments. Each language and pages reference is as follows: • English - pages C-2 to C-5 •...
  • Page 60 1.2.7 of Annex II of the ATEX Directive 94/9/EC Any right of claim relating to product liability or consequential damage to any third party against GMI is removed if the warnings are not observed. AREAS OF USE Exposure to certain chemicals can result in a loss of sensitivity of the flammable sensor.
  • Page 61 Gasurveyor 6-500 / 6B-500 - Operating Instructions environments which are liable to result in mechanical or thermal degradation or to damage caused by contact with aggressive substances. Additional protection may be required in environments where the instrument enclosure is liable to damage.
  • Page 62 GAS MEASUREMENT INSTRUMENTS LTD. OPERATION INST. BUTTON 1 PUMP RANGE BUTTON 2 GASURVEYOR 6-500 ALARM ACK. Switch ON Press and Hold Button One to switch instrument and pump On. This initiates the instrument’s warm-up cycle. All LCD segments are displayed...
  • Page 63 A double press of Button Two , when ppm Methane range is selected, zeroes that range. Clearing Display Alarms The Gasurveyor 6-500 and 6B-500, by default, displays the range in alarm condition, alternating with ‘Hi’. LEL example shown: The display alarms are non-latching.
  • Page 64 • Die Messkammer ist flammensicher ausgefüehrt und darf nicht in Ex Zonen geoeffnet werd • Gasurveyor 6-500, 6B-500 Instrumente sind zertfiziert nach: C < bis < 50 EEx iad IIC T4 (-20 BAS01ATEX2292 II 2 G. UL Klasse 1 Gruppe A,B,C und D.
  • Page 65 Gasurveyor 6-500 / 6B-500 - Bedienungshinweise Verwendungsgebiete Das auftreten von verschiedenen Chemikalien kann die Empfindlichkeit des Sensors fuer brennbare Gase beeinflussen. Beim vorhandensein dieser Stoffe ist ein kuerzeres Serviceintervall erforderlich. Folgende Komponenten fuehren zur verringerung der Sensorempfindlichkeit: Silicone, Halogene und Schwefel. Das Instrument darf nicht in Athmosphaeren mit mehr als 21% Sauerstoff verwendet werden.
  • Page 66 GAS MEASUREMENT INSTRUMENTS LTD. Bedienung INST. PUMP RANGE GASURVEYOR 6-500 ALARM ACK. Einschalten Taste 1 Druecken und Halten, Gerät und Pumpe ein und die Selbsttestphase beginnt. Alle LCD Segmente werden kurz dargestellt, die Instrument Type, Softwareversion und der Batteriezustand. Weiters wird das Kalibriergas angezeigt.
  • Page 67 Gasurveyor 6-500 / 6B-500 - Bedienungshinweise Pumpe Ein/Aus Taste 1 1x Druecken Start bzw. Stop der laufenden Pumpe und der Probenahme. Erneutes Druecken startet die Pumpe wieder Messbereichswechsel (6-500) Taste 2 1x Druecken wechselt den Messbereich Im Display wechselt folgende Anzeige LEL/GAS – Carbon Monoxide –...
  • Page 68 än definitionen I paragraf 1.2.7 i Annex II i ATEX Direktivet 94/9/EC All rätt till skadestånd med hänvisning till produktansvar eller skada hos tredje man gentemot GMI upphör om denna varning ej beaktas. ANVÄNDNINGSOMRÅDE Exponering för vissa kemikalier kan resultera I att sensorn för brännbara gaser skadas.
  • Page 69 Gasurveyor 6-500 / 6B-500 - Handhavande Instrumenthuset är tillverkat av polypropylen och får ej utsättas för eller komma I kontakt med vissa kemikalier. En ytterligare skyddsväska kan vara nödvändigt då instrumentet används i speciella miljöer. MEDDELANDEN / TECKEN I DISPLAYEN Olika besked visas I displayen för att indikera instrumentets status.
  • Page 70 GAS MEASUREMENT INSTRUMENTS LTD. BRUKSANVISNING INST. PUMP RANGE GASURVEYOR 6-500 ALARM ACK. Slå på Tryck och håll nere knapp “1” för att sätta på instrumentet och pumpen. Detta startar en automatisk kontroll och uppvärmning av instrumentet: Alla tecken visas i displayen och åtföljs av Instrumentets...
  • Page 71 Dubbeltryck på knapp ”2” då mätområdet är ppm Metan nollställer detta mätområde (skall utföras i ren luft) Kvittering av larm Gasurveyor 6-500 och 6B-500 har som standard visning av mätområdet vid larm växlande med exempelvis ”Hi LEL”. Larmen återgår automatiskt. Så snart gaskoncentrationen understiger inställd larmnivå..
  • Page 72 Forbrændings kammer er brandsikker tilbehør, og må ikke åbnes i almindelig atmosfære. • Ethvert krav i forbindelse med produkt ansvar eller følge skade på tredje part imod GMI, er fjernet hvis de ovenstående forskrivelser ikke håndhæves. • Gasurveyor 6-500/6B-500 instrument er certificeret ifølge: C <...
  • Page 73 Gasurveyor 6-500 / 6B-500 - Bruger manual Bruger beskeder og fejl Forskellige beskeder/tegn forekomme på displayet under brug. ‘SAMPLE’ fortæller at pumpen kører, og at instrumentet optager prøver. ‘OFF’ Indikerer at instrumentet er ved at slukke. Denne kommando kan afbrydes ved et tryk på en anden knap.
  • Page 74 GAS MEASUREMENT INSTRUMENTS LTD. Bruger muligheder INST. KNAP 1 PUMP RANGE KNAP 2 GASURVEYOR 6-500 ALARM ACK. Tænd for instrumentet Tryk og hold nede den knap 1 , så startes opvarmnings processen og pumpen. Under opvarmning identificeres model, serienummer, software...
  • Page 75 Tryk 2 gange på knap 2 , når PPM måling er valgt, nul stilles målingen. Alarms afbrydelse Gasurveyor 6-500 og 6B-500 viser ved fejl, alarmen ved målingen, f.eks. med ”HI” LEL vises som ikke non-latching Non-latching afbrydes automatisk, når gas niveauet kommer under alarm grænsen.
  • Page 76 Annex II van de ATEX 94/9/EC Elke recht op een claim met betrekking tot de betrouwbaarheid of de daardoor veroorzaakte schade van welke derde partij dan ook aan GMI zal verworpen worden indien de waarschuwingen genegeerd zijn. PLAATSEN VAN GEBRUIK Blootstelling aan bepaalde chemicaliën kan resulteren in een verlies...
  • Page 77 Gasurveyor 6-500 / 6B-500 - Gebruiksaanwijzing zuurstof. Het omhullende materiaal is polypropyleen en dit mag niet blootgesteld worden aan omgevingen die waarschijnlijk resulteren in mechanische of thermische degradatie of schade veroorzaakt door contact met aggressieve substanties. Bijkomende bescherming kan nodig zijn in omgevingen waar het omhulsel van het instrument onderhavig kan zijn aan schade.
  • Page 78 GAS MEASUREMENT INSTRUMENTS LTD. GEBRUIK INST. KNOP 1 PUMP RANGE KNOP 2 GASURVEYOR 6-500 ALARM ACK. Schakel AAN Druk op knop 1 en houdt ingedrukt om instrument en pomp aan te schakelen. Dit zorgt voor opwarming. Alle LCD segmenten worden...
  • Page 79 Gasurveyor 6-500 / 6B-500 - Gebruiksaanwijzing Pomp AAN / UIT Een enkele druk op knop 1 wanneer de pomp draait, schakelt de pomp uit en stopt het meten. Een volgende druk schakelt de pomp weer aan. Wijzig bereik (6-500) Elke enkele druk op knop 2 wijzigt het gas bereik.
  • Page 80 GAS MEASUREMENT INSTRUMENTS LTD. C-22...
  • Page 81 Index Symbols 1 18 CALIBRATION 19, 27, B- Calibration Date Features ACCESSORIES 29 Calibration Procedure B-5 ACCURACY A-1 Calibration Validity 28 Alarm Functions 7 Carbon Monoxide 5 alkaline A-3 Changing Range 14 Alkaline (LR20) Dry Cell Charger, Flatbed 20 Batteries 8 Charger, Smart 20 AREAS OF USE ii Charger, Standard 19...
  • Page 82 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK Fault Flags 16 Measure Mode Operation 11 FCM B-1, B-3, B-9 MODIFICATION NOTICES i features 2 FIELD CALIBRATION B- Nederlands (Dutch) C-1 Field Calibration Proce- NiCd A-3 dure B-5 Filter Replacement 24 Filters 9...
  • Page 83 Range 14, 15 TRAINING 33 ranges 2 TRANSIT ii Ranges of Operation 3 Rechargeable Battery Pack 9 Volume Gas 3, 4 Recharging the Battery Pack 22 Replacing Alkaline (LR20) Dry Cell Weight A-2 Batteries 22 World Wide Web 33 Replacing the Battery Pack 21 RESOLUTION A-1 ZERO FAULT 17...
  • Page 84 GASURVEYOR 6-500 / 6B-500 USER HANDBOOK...
  • Page 86 PA4 9RG, Scotland, U.K. Telephone +44 (0)141 812 3211 Fax +44 (0)141 812 7820 e-mail: sales@gmiuk.com http://www.gmiuk.com GMI Instrument Service / Repair Centre: Crownhill, 25 Cochran Close, Milton Keynes, MK8 OAJ, England, U.K. Telephone +44 (0)1908 568867 Fax +44 (0)1908 261056...

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Gasurveyor 6b-500

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