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B-5

Field Calibration Procedure

1) Zero gas range 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 Switch One (

) toggles the

pump Off / On.

3) Remove the cap from calibration gas cylinder. Make

sure that the regulator valve is in the fully closed

position (Off) then connect the gas regulator to

the gas cylinder (push down gently and tighten

clockwise, hand tight). See Figure B-5 for details.

FIELD CALIBRATION

Содержание First Responder

Страница 1: ...First Responder User Handbook...

Страница 2: ...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 Instr...

Страница 3: ...ences between the latest product and this manual This Handbook is an important part of the First Responder product Please note the following points It should be kept with the instrument for the life o...

Страница 4: ...oss of sensitivity of the flammable sensor Where such environments are known or suspected it is recommended that more frequent responsechecksarecarriedout Thechemicalcompoundsthatcancauselossofsensiti...

Страница 5: ...iii DECLARATION OF CONFORMITY...

Страница 6: ...FIRST RESPONDER USER HANDBOOK iv...

Страница 7: ...v REVISION RECORD Date Pages Description Of Change Issue 1 All New Handbook 18 04 02 Issue 2 All To include Declaration of 31 10 06 Conformity and the effect of CR 2302 CR 2319 and CR 4042...

Страница 8: ...FIRST RESPONDER USER HANDBOOK vi...

Страница 9: ...i SAFETY ii AREAS OF USE ii STORAGE HANDLINGANDTRANSIT ii DECLARATION OF CONFORMITY iii REVISION RECORD v INTRODUCTION 1 1 GENERALINFORMATION 2 1 Ranges of Operation 2 1 EXT Range External Semiconduc...

Страница 10: ...ic Datalogging 2 7 Manual Datalogging 2 8 Construction 2 8 Batteries 2 9 Alkaline LR20 Batteries 2 9 Rechargeable Battery Pack 2 9 Filters 2 10 Probe Handle Assembly Part No 12481 2 10 Semiconductor S...

Страница 11: ...ff the Instrument Pump 3 7 Switching Off 3 7 Changing Range 3 7 Datalogging Default 3 8 Clearing Alarms 3 8 Activate the Audible Geiger Indication EXT or PPM Flammable Range 3 8 Zeroing the PPM Flamma...

Страница 12: ...Pack 5 1 Standard Charger 5 1 Smart Charger 5 2 Replacing the Battery Pack 5 2 Recharging the Battery Pack 5 4 Replacing Alkaline LR20 Batteries 5 4 Filter Replacement 5 6 Probe Handle Assembly Part N...

Страница 13: ...lidity 6 2 ACCESSORIES 7 1 ADDITIONALINFORMATION 8 1 Training 8 1 World Wide Web 8 1 TYPICAL OPERATING PARAMETERS A 1 Size A 2 Weight A 2 Operating Temperature A 2 Humidity A 2 Construction A 2 Displa...

Страница 14: ...ment B 4 Field Calibration Procedure B 5 Quitting FCM B 8 Quit and Save Changes B 8 Quit Without Saving Changes B 9 APPLICATIONS C 1 Small Plastic Solid End Probe C 1 Semiconductor Sensor Flexi Probe...

Страница 15: ...he gas utilities industry Fig 1 1 First Responder The instrument is a highly flexible four button portable gas detector which is designed to provide measurement of Lower Explosive Level LEL and Volume...

Страница 16: ...of providing an almost instantaneous response by pumping the sample past the sensor thus eliminating any delay in diffusion These high speed response and sensitivity Semiconductor Sensor Probes also...

Страница 17: ...ies For a comprehensive list of accessories supplied with the instrument and additional accessories available see Section 7 ACCESSORIES The main features of the instrument are Rugged polypropylene cas...

Страница 18: ...FIRST RESPONDER USER HANDBOOK 1 4...

Страница 19: ...LCD The EXT range by default has the audible and visual Geiger indication configured that is they will provide assurance that the instrument is sensing for gas without the need for the operator to con...

Страница 20: ...very small amounts of gas to be ignored if they fall below any pre set action levels This allows the operator to react only to significant levels The factory set threshold level is ten 10 ppm When the...

Страница 21: ...action with the sensitivity of the sensors greatly enhanced compared to the LEL range Digital signal correction techniques are used to minimise drift The ppm flammable range includes a manual zeroing...

Страница 22: ...o 5 Volume methane in Air Above 100 LEL the instrument autoranges to Volume Gas When the LEL range is selected LEL is displayed in the top right corner of the LCD From 0 to 10 LEL the digital display...

Страница 23: ...2 5 Volume Gas Range Carbon Monoxide 0 1000 ppm This range displays the parts per million ppm Carbon Monoxide content up to 999 ppm When the Carbon Monoxide range is selected CO is displayed in the t...

Страница 24: ...rument are appropriate for the safe operation and legal requirements for the country industry in which the unit is being used The First Responder has the high instantaneous alarm level setting of 35 p...

Страница 25: ...a higher priority than CO PPM Flammable and EXT Range Geiger The EXT range and the PPM Flammable range have by default audible and visual Geiger indication configured This means that as the gas concen...

Страница 26: ...he STORE flag being displayed for 1 second and the buzzer sounding Construction The instrument is housed in a tough impact resistant moulded case made of polypropylene The top panel is protected by a...

Страница 27: ...ortly after which the instrument will switch off automatically Rechargeable Battery Pack The GMI rechargeable battery pack is identified when fitted by two contacts on end face of pack and provides ap...

Страница 28: ...placement filter disc which is incorporated in the Probe end cap is available from GMI Filters should be checked periodically and where appropriate changed to ensure a clean sample path Any filter whi...

Страница 29: ...rm 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 Bef...

Страница 30: ...FIRST RESPONDER USER HANDBOOK 2 12 All gas ranges are operational and zeroed cor rectly The calibration is still valid...

Страница 31: ...ument Features The First Responder front plate features a panel of four operating switches a backlit LCD screen incorporating the analogue bar graph a visual alarm LED and an infra red communication p...

Страница 32: ...le Press of any switch will access functions coloured blue on right hand side of switch panel PUMP RANGE MAN LOG AUTO LOG AUD ALARM ALARM ACK OFF ZERO ON Fig 3 2 Switch Panel The symbols indicate the...

Страница 33: ...assembly which is connected to the instrument via sample line inlet Fig 3 3 Standard Probe and Handle 2 The EXT range Semiconductor Sensor Flexi Probe provides fast response gas detection and is conne...

Страница 34: ...ovides fast response gas detection is connected to the instrument via both an 8 Pin Plug and sample line inlet 8 Pin Instrument Connector Plug Probe Sensor Sample Line Fig 3 5 Semiconductor Survey Bel...

Страница 35: ...Operation Switching On Pressing and holding Switch One turns both the instrument and the pump ON This initiates the instrument s warm up cycle as shown in the following example sequence Figure 3 7 Th...

Страница 36: ...tion At the end of warm up and before the first Responder instrument is ready for measuring the instrument will indicate on the display when the next calibration is due This will be displayed as month...

Страница 37: ...layed when the pump is running and is extinguished when the pump is switched off Switching Off A double press of Switch One turns the instrument off There is a five second shutdown sequence during whi...

Страница 38: ...g Alarms A double press of Switch Four will acknowledge the alarm for 60 seconds If more than one gas alarm threshold has been exceeded a double press of Switch Four will acknowledge each alarm in ord...

Страница 39: ...Range Adjust Threshold Value in EXT Range With the EXT range selected you can adjust the threshold value To do this press and hold Switch Two to display the factory default ten 10 ppm setting Each sin...

Страница 40: ...r to assist in barhole probing For an illustrated example of barhole probing see Appendix C APPLICATIONS To start or stop the counter press and hold Switch Three when the current range is either LEL o...

Страница 41: ...ration Alarms are always enabled The pump can be switched ON or OFF The instrument does not switch off automatically Automatic datalogging is enabled by default Summary of Switch Operation Fig 3 11 Sw...

Страница 42: ...When in EXT range this message is displayed if the Semiconductor Sensor Probe is not connected SAMPLE FAULT This indicates a problem with the instrument s flow due to the sample path being blocked wat...

Страница 43: ...dicates approximately 30 minutes operation left BAT FAULT This indicates that the batteries should be replaced immediately As the battery power continues to fall the pump switches off and the LCD flas...

Страница 44: ...FIRST RESPONDER USER HANDBOOK 3 14 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...

Страница 45: ...probes and associated accessories Standard Probe and Handle Assembly Part No Description 12480 Small Plastic Probe 12481 Probe Handle Assembly incl filters 12688 Probe Adaptor not shown 12712 Clear S...

Страница 46: ...with Filter 42169 Carry Pouch Flexi Probe not shown Semiconductor Sensor Probe 8 Pin DIN Plug Fig 4 2 Instrument Semiconductor Sensor Flexi Probe For a comprehensive list of accessories supplied with...

Страница 47: ...mbly Fig 4 3 Instrument Semiconductor Survey Bellows Probe For a comprehensive list of accessories supplied with the instrument and additional accessories available see Section 7ACCESSORIES For exampl...

Страница 48: ...42184 Dust Filter Assembly 42183 Water Filter Assembly Fig 4 4 Bellows Swan Neck Probes For a comprehensive list of accessories supplied with the instrument and additional accessories available see S...

Страница 49: ...ble Battery Pack Two battery chargers are available from GMI a Standard Charger and a Smart Charger Standard Charger Fig 5 1 Instrument Standard Charger The GMI Standard Charger takes approximately 14...

Страница 50: ...nstrument and a spare battery pack simultaneously Using the fast charge option a battery pack can be 90 recharged in approximately 60 minutes and fully recharged in 120 minutes Replacing the Battery P...

Страница 51: ...5 3 OPERATOR MAINTENANCE Fig 5 3 Loosen Instrument Base Screws 2 Remove the battery pack Fig 5 4 Remove Battery Pack...

Страница 52: ...y discharged on a regular basis once every three months This can be done by running the instrument continuously or using the battery conditioning facility on the Smart Charger The batteries can be cha...

Страница 53: ...5 5 Fig 5 5 Loosen Instrument Base Screws 2 Remove battery cover Fig 5 6 Remove Battery Cover 3 Remove the old batteries OPERATOR MAINTENANCE...

Страница 54: ...the instrument switches on and works to specification Filter Replacement Probe Handle Assembly Part No 12481 Hydrophobic and cotton particulate filters in the probe handle minimise the danger of water...

Страница 55: ...bly 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...

Страница 56: ...water and or dust ingress Fig 5 8 Probe Handle and In line Filter Assembly Caution The instrument should never be switched on without suitable filters installed If a blockage occurs the SAMPLE FAULT...

Страница 57: ...embly Figure 5 9 Probe Sealing Washer Dust Filter Probe Washer Dust Filter Housing Assembly Fig 5 9 Dust Filter Assembly 2 Remove Dust Filter then discard 3 Check Probe Washer and Probe Sealing Washer...

Страница 58: ...robe Sealing Washer yellow label Hydrophobic Filter Probe Washer Fig 5 10 Water Filter Assembly 2 Remove Hydrophobic Filter then discard 3 Check Probe Washer and Probe Sealing Washer for signs of dama...

Страница 59: ...washer if it shows signs of damage or wear Fig 5 11 Semiconductor Survey Bellows Probe Filter Assembly Caution The instrument should never be switched on without suitable filters installed If a blocka...

Страница 60: ...s follows 1 Unscrew the filter assembly Fig 5 12 Dust Filter Dust Filter Housing Assembly Probe Washer Fig 5 12 Dust Filter Assembly 2 Remove Dust Filter then discard 3 Check Filter assembly Probe Was...

Страница 61: ...Assembly Hydrophobic Filter Assembly Probe Washer Fig 5 13 Water Filter Assembly 2 Remove Hydrophobic Filter then discard 3 Check Filter assembly Probe Washer for signs of damage or wear and replace i...

Страница 62: ...ge occurs the SAMPLE FAULT indicator is displayed Check the sample line probe handle and coalescing filter assembly for blockage Press Switch One to clear the SAMPLE FAULT message Replace the filter s...

Страница 63: ...lter housing 5 Replace the bowl and tighten to secure Semiconductor Sensor Flexi Probe Assembly Part No 42200 The yellow plastic end cap when removed provides access to a filter disc A replacement fil...

Страница 64: ...n Fig 5 16 Filter Replacement 2 Using the hex driver or similar push the old filter out from the front end of the cap 3 Fit a new filter disc in the end cap then use the hex driver or similar flat end...

Страница 65: ...ment can be linked to a PC running GMI Manual Calibration software Automatic Calibration The GMI Auto Test Calibra tion System allows calibration without manually changing gas cylinders The system lin...

Страница 66: ...xpected 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 reli...

Страница 67: ...s Supplied with First Responder Instrument Part Number 44526G 44526GR Part Number Description 42418 Carrying Case Assembly 12451 4mm Hex Driver 12370 2 Carrying Harness 42041 Quick Operation Guide 124...

Страница 68: ...ower Supply 13322 Standard Charger 110V Power Supply 13100 Smart Charger c w Data Logging 240V 13440 Smart Charger c w Data Logging 220V 13340 Smart Charger c w Data Logging 110V 13000 Spare Rechargea...

Страница 69: ...3413 75174 Coalescing Filter use with 42215 12358 Hydrophobic Filter use with 12481 42183 or 42416 42388 Dust Filter Box of 20 use with 42184 or 42444 12379 Probe Sealing Washer use with 42183 42184 4...

Страница 70: ...FIRST RESPONDER USER HANDBOOK 7 4...

Страница 71: ...raining Training courses are available on all GMI products Contact GMI 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...

Страница 72: ...FIRST RESPONDER USER HANDBOOK 8 2...

Страница 73: ...100 1 N A 2 1 LEL Volume 0 to 100 1 2 1 1 Gas Gas Carbon 0 to 1000 ppm 1 ppm CO 15 ppm 15 ppm 5 Monoxide reading EXT 0 to 1000 ppm 1 ppm 5 Typically 20 1000 to 9999 ppm 10 ppm Notes All the values abo...

Страница 74: ...LCD containing Analogue display scaled 0 10 0 100 0 1000 or 0 10000 4 digit digital display 3 character range indication Operational flags Sampling System Standard Probe and Handle assembly connected...

Страница 75: ...sample path is protected by a dust or hydrophobic filter and automatic pump switch off Power Source 4 D size alkaline cells providing approximately 18 hours runtime 12 hours runtime with external sem...

Страница 76: ...FIRST RESPONDER USER HANDBOOK A 4...

Страница 77: ...se of additional test equipment Other calibration procedures require the use of the GMI Manual Calibration software or the Workshop System In Field Calibration Mode FCM the switches perform the functi...

Страница 78: ...ilable and can be placed over the top face of the instrument to identify calibration switch functions Contact GMI for details Fig B 2 Instrument Overlay Card Selectable Ranges in FCM When in FCM the f...

Страница 79: ...Allow at least one second between switch presses when entering the four switch sequence The default factory set entry code is switch sequence 1 2 3 4 Alternative codes are user selectable When the ins...

Страница 80: ...CAL Data Exit CAL Mode Enter SPAN Mode Next Range Fig B 4 FCM Switch Functions Zeroing the Instrument Note There is no requirement to calibrate EXT range 1 Enter FCM See the previous section ENTERING...

Страница 81: ...d the gas range selected is compatible with the calibration gas Note A single press of Switch One toggles the pump Off On 3 Remove the cap from calibration gas cylinder Make sure that the regulator va...

Страница 82: ...tor valve to maintain a constant flow of gas counter clockwise to increase flow and clockwise to decrease The correct flow rate is achieved when the ball in the indicator tube floats just above its re...

Страница 83: ...decrease display reading until the displayed gas value corresponds to the concentration of the calibration gas 8b When required reading has been reached press and hold Switch Four to exit SPAN mode wi...

Страница 84: ...n off gas flow 11 Make sure that the regulator valve is in the fully closed position Off then disconnect the regulator from the gas cylinder turn regulator body in a counter clockwise direction 12 Rep...

Страница 85: ...9 Quit Without Saving Changes 1 Double press Switch 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 FIELD CALIBRATI...

Страница 86: ...FIRST RESPONDER USER HANDBOOK B 10...

Страница 87: ...This probe is supplied with the First Responder and is designed for use with barhole probing and below ground surface gas monitoring Fig C 1 Solid End Probe The solid end feature prevents blocking of...

Страница 88: ...astic material which is flexible and extremely robust The probe s wall thickness provides the flexible strength to withstand bending around a 50cm radius or sustaining damage to or collapse of the sam...

Страница 89: ...y the pump drawing the sample into the instrument analysing chamber Fig C 2 Semiconductor Sensor Flexi Probe The probe sensor is located on the end of a flexible wand and hence is able to gain access...

Страница 90: ...FIRST RESPONDER USER HANDBOOK C 4 Fig C 3 Semiconductor Sensor Flexi Probe Applications...

Страница 91: ...sory to provide protection during transit The Probe Sensor is protected by a removable Plastic End Cap Part No 42187 The cap incorporates a Filter Disc Part No 42197 to prevent the ingress of dust The...

Страница 92: ...ffusion probe Part No 42444 complete with filter and bellows fitting is designed to provide a near instantaneous response in detecting general survey leaks This is a pumped probe with the detector at...

Страница 93: ...ith replaceable Disc to prevent the ingress of dust A Water Filter assembly Part No 42416 complete with replaceable hydrophobic filter is also available as an accessory The Probe is connected to the i...

Страница 94: ...by reducing the effect of wind and air dilution Fig C 6 Bellows Probe The Bellows Probe is of stainless steel construction housed in a flexible rubber boot It is generally used with the Probe Adaptor...

Страница 95: ...obe Handle does not incorporate an in line filter A Water Filter Assembly Part No 42183 or Dust Filter Assembly Part No 42184 is available and can be fitted as an accessory if required Refer to Chapte...

Страница 96: ...e The Swan Neck Probe is of stainless steel construction and is generally used with the Probe Adaptor which connects to the Probe Handle Assembly Part No 13561 The Probe Handle incorporates a sample l...

Страница 97: ...ter Part No 75174 is generally used The purpose of the filter assembly is to isolate any moisture which could affect the sample reading The flue probe and coalescing filter assembly is generally used...

Страница 98: ...FIRST RESPONDER USER HANDBOOK C 12...

Страница 99: ...4 Before Use Checks 2 11 Bellows Probe 4 4 C 8 C CALIBRATION 6 1 B 1 Calibration Date Features 3 6 Calibration Procedure B 5 CALIBRATION VALIDITY 7 2 Calibration Validity 6 2 Carbon Monoxide 2 5 Chan...

Страница 100: ...5 9 Filter Replacement 5 6 Filter Water 5 10 Filters 2 10 Flue Probe 5 14 Flue Probe Coalescing Filter Assembly 5 14 G Geiger Indication 3 8 GENERALINFORMATION 2 1 H Handle Assembly 2 10 2 11 Handle...

Страница 101: ...10 Probe Handle Assembly Part No 12481 5 6 Probe Handle Assembly Part No 13561 5 8 5 11 Probe SemiconductorSensor EXT 4 1 Probe SemiconductorSensor Flexi C 3 Probe Stainless Steel Flue C 10 Probe Swa...

Страница 102: ...Small Plastic Solid End Probe C 1 Smart Charger 5 2 SOFTWARE i Stainless Steel Flue Probe C 11 Standard Charger 5 1 STORAGE ii STORE 3 13 Summary of Switch Operation 3 11 Swan Neck Probe 4 4 Switch O...

Страница 103: ......

Страница 104: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...

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