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Gasurveyor 7B-500R

User Handbook

Summary of Contents for GASURVEYOR 7B-500R

Page 1: ...Gasurveyor 7B 500R User Handbook ...

Page 2: ...s 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 Customer Support Department at Teledyne GMI Copyright Teledyne Gas Measurement Instruments Ltd 2021 ...

Page 3: ... be operational differences between the latest product and this handbook This Handbook is an important part of the Gasurveyor 7B 500R product Please note the following points It should be kept with the instrument for the life of the product Amendments should be attached This Handbook should be passed on to any subsequent owner user of the instrument Although every care is taken in the preparation ...

Page 4: ...here such environments are known or suspected it is recommended that more frequent response checks are carried out The chemical compounds that can cause loss of sensitivity include Silicones Lead Halogens and Sulphur Do not use instrument in potentially hazardous atmospheres containing greater than 21 Oxygen The enclosure material is polypropylene and must not be exposed to environments which are ...

Page 5: ... i SOFTWARE i DISPOSAL ADVICE i SAFETY ii AREAS OF USE ii STORAGE HANDLING AND TRANSIT ii INTRODUCTION 1 1 GENERAL INFORMATION 2 1 Ranges of Operation 2 1 Methane 0 1000 ppm 2 2 LEL 0 100 2 2 Volume Gas 0 100 2 3 Carbon Monoxide 0 1000 ppm 2 3 Oxygen 0 25 2 4 ...

Page 6: ... 2 7 Manual Datalogging 2 7 Batteries 2 8 Rechargeable Battery Pack 2 8 Construction 2 8 Filters 2 9 Liquid Crystal Display LCD 2 9 Before Use Checks 2 9 OPERATION 3 1 Instrument Features 3 1 Button Panel 3 2 Warm Up Sequence 3 2 Calibration Date Features 3 4 Service Date Features 3 4 Modes of Operation 3 5 ...

Page 7: ... 3 7 Zero PPM Range 3 7 Manual Datalogging 3 7 Summary of CGI Button Operation 3 7 CSM Mode Confined Space Monitoring 3 8 Switching ON 3 8 Switching OFF 3 8 Gas Ranges 3 8 Pump Operation 3 8 Acknowledge Alarms 3 9 Automatic Datalogging 3 9 Manual Datalogging 3 9 Summary of CSM Button Operation 3 9 Operator Messages Fault Flags 3 10 ...

Page 8: ...the Battery Pack 5 1 Replacing the Battery Pack 5 1 Probe Filter Replacement 5 3 Probe Handle Assembly Part No 12481 5 3 Probe Handle Assembly Option Part No 13561 5 4 In line Dust Filter Accessory 5 5 In line Water Filter Accessory 5 6 Flue Probe Coalescing Filter Assembly Accessory Part No 42215 5 7 CALIBRATION 6 1 Calibration Validity 6 2 ACCESSORIES 7 1 ...

Page 9: ...ITIONAL INFORMATION 8 1 Training 8 1 World Wide Web 8 1 TYPICAL OPERATING PARAMETERS A 1 APPLICATIONS B 1 Small Plastic Solid End Probe B 1 Bellows Probe B 3 Swan Neck Probe B 4 Stainless Steel Flue Probe B 6 INDEX ix ...

Page 10: ...viii GASURVEYOR 7B 500R USER HANDBOOK ...

Page 11: ... gas for leak detection and general safety monitoring Fig 1 1 Gasurveyor 7B 500R The Gasurveyor 7B 500R also Features a parts per million ppm flammable range for increased sensitivity to smaller leaks Is equipped with both audible and visual alarms and a Geiger indication for the ppm flammable range Features Carbon Monoxide CO and Oxygen O2 ranges ...

Page 12: ...th the instrument and additional accessories see Chapter 7 ACCESSORIES The main features of the instrument are Rugged polypropylene case sealed to IP54 rating and suitable for outdoor use Two button operation allowing the user easy access to all features LCD with backlighting which displays the current gas readings together with operational and status information Audible and visual alarms with pre...

Page 13: ...eration Combustible Gas Indicator CGI Confined Space Monitoring CSM Ranges and features available are mode dependent Ranges of Operation The instrument calibration gas Methane is shown on the instrument service label as illustrated in Fig 2 1 Fig 2 1 Instrument Service Label ...

Page 14: ...lustrates the ppm display Fig 2 2 ppm Range LEL 0 100 CGI and CSM Modes 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 When selected LEL is displayed in the top right corner of the LCD From 0 to 10 LEL the digital display resolves to 0 1 LEL From 10 to 100 LEL the digital display resolves to...

Page 15: ...ph follows in 4 steps Fig 2 4 illustrates the Volume Gas display Fig 2 4 Volume Gas Range Carbon Monoxide 0 1000 ppm CGI and CSM Modes This range displays the Carbon Monoxide CO reading in parts per million ppm up to 999 ppm When selected CO is displayed in the top right corner of the LCD The digital display resolves to 1 ppm CO The analogue bar graph follows in 40 ppm steps Fig 2 5 illustrates th...

Page 16: ...ar graph follows in 4 steps Fig 2 6 illustrates the Oxygen display Fig 2 6 Oxygen Range Alarms Alarms can have both audible and visual indications active The audible alarm is rated up to 85 dB a at 1ft 0 3m The visual alarm is a red LED indicator which protrudes from the instrument top plate allowing viewing from any angle above the top plate The alarms table illustrated in Fig 2 7 shows the instr...

Page 17: ...cancel once the alarm condition has cleared Alarms can be acknowledged in CSM mode This means that the audible and visual alarms can be suspended allowing the user to view gas readings in other ranges Alarms are acknowledged by a press and hold of If after 60 seconds the gas reading still exceeds the alarm level the audible and visual alarms will be re activated Note It is the responsibility of th...

Page 18: ...as occurred but the alarms are still operating correctly See page 3 10 Operator Messages Fault Flags to identify the instrument fault Datalogging The Gasurveyor 7B 500R has two datalogging functions automatic and manual Datalogging is mode dependent as illustrated in Fig 2 8 Fig 2 8 Datalogging Table The total number of data logs that can be stored in the instrument memory will be approximately 20...

Page 19: ...onds the instrument automatically stores the values of all gas ranges together with time and date Manual Datalogging The instrument has manual datalogging enabled in CGI and CSM modes The instrument stores the values of all gas ranges in the current mode together with time and date The user can initiate a manual datalog with a press and hold of STORE will flash on the display and the user audibly ...

Page 20: ...oximately 30 minutes operating time is left at normal temperatures The instrument will then turn off See Recharging the Battery Pack in Chapter 5 OPERATOR MAINTENANCE Construction The instrument is housed in a tough impact resistant moulded case made of polypropylene The top panel is protected by a stainless steel top plate incorporating a toughened glass LCD cover The battery pack is attached to ...

Page 21: ...logue and digital form together with operational and status information The display is protected by toughened glass Backlighting is provided to enable the display to be seen under low ambient light conditions Before Use Checks The following checks should be carried out before use The instrument is clean and in good condition The battery pack has sufficient power left for the intended use of the in...

Page 22: ...2 10 GASURVEYOR 7B 500R USER HANDBOOK ...

Page 23: ...f two operating buttons a backlit display a visual alarm LED and an infrared communication port Fig 3 1 Instrument Front Plate GASURVEYOR 7B 500R GMI CSM OFF CGI Backlit Display Infrared Communications Port Visual Alarm LED Analogue Bar Graph Button Panel ZERO PPM RANGE LOG MUTE PUMP ON 3 ...

Page 24: ...s or press and hold Button function is dependent on the operating mode of the instrument The Gasurveyor 7B 500R has two operating modes CGI and CSM To select CGI mode switch ON with button 1 To select CSM mode switch ON with button 2 Warm Up Sequence After switching the instrument on in any operating mode a warm up sequence is initiated Fig 3 3 is an example of a warm up sequence CSM OFF CGI ZERO ...

Page 25: ...itches on and a beep sounds Instrument type Software version Battery status OK or LO at start up Alarm Levels 1 Display alternates between gas range and alarm type Calibration due date Normal operating display 3 Service due date 2 Displays alternate between test type and DUE ...

Page 26: ...g warm up the instrument displays when the next calibration is due This will be displayed as day and month as illustrated in Fig 3 4 Fig 3 4 Calibration Due Date The calibration interval is typically 31 days If calibration is overdue the instrument will automatically switch OFF Service Date Features During warm up the instrument displays when the next service is due only when the date of the next ...

Page 27: ...ay and are non latching An audible Geiger style alarm is available on the ppm range and is muted by default If an O2 or CO alarm is activated and the range being viewed is not O2 or CO the range window will alternate with O2 or CO Fig 3 6 illustrates a CO alarm which has been activated whilst viewing the LEL range Fig 3 6 LEL Range CO Alarm Indication Note If both O2 and CO alarms exist then the O...

Page 28: ...gas ranges can be selected in CGI mode ppm LEL Vol GAS auto range O2 CO When first switched on LEL will be selected To change the range single press Each single press will cycle through the gas ranges shown above Pump Operation The pump has three speeds Normal Hi speed and off To change the pump speed single press Each single press will cycle through the pump speeds Hi speed is only available in t...

Page 29: ...e flammable ppm range can be manually zeroed To zero double press This should be carried out in fresh air Manual Datalogging To perform a manual data log press and hold The pump must be ON when performing a manual datalog Summary of CGI Button Operation Fig 3 7 CGI Button Operation CGI Single Press Double Press Press Hold Toggles Pump Normal Hi Off Instrument OFF Instrument ON Manual Log Next Rang...

Page 30: ...indicate the instrument alarms are operational Switching ON Press and hold to turn ON the instrument in CSM mode The pump will switch on and the instrument will go through the warm up sequence Switching OFF Double press to switch the instrument OFF Gas Ranges The following gas ranges can be selected in CSM mode LEL Vol GAS auto range O2 CO When first switched on LEL will be selected To change the ...

Page 31: ...logging is activated in this mode STORE will be visible on the display as illustrated in Fig 3 8 Fig 3 8 Automatic Datalogging Manual Datalogging To perform a manual data log press and hold Summary of CSM Button Operation Fig 3 9 CSM Button Operation CSM Single Press Double Press Press Hold Instrument OFF Manual Log Next Range Instrument ON Acknowledge Alarm ...

Page 32: ...LT This indicates a problem with the instrument s flow due to the sample path being blocked water ingress a blocked filter or pump failure The pump will switch off except in CSM mode The sample path should be checked and pressed to clear the fault and re start the pump CHECK ZERO This indicates gas is present during instrument warm up Switch off the instrument and switch on again in fresh air ZERO...

Page 33: ...aced immediately When BAT FAULT flashes approximately 1 minute of battery power remains STORE This flag is displayed when the instrument is datalogging EEEE EEEE is displayed if the LEL measurement only CSM mode flammable ppm measurement only CGI mode or CO measurement over ranges 1000ppm EEE EEE is displayed if the measurement drifts excessively negative 1 This message can only appear during warm...

Page 34: ...3 12 GASURVEYOR 7B 500R USER HANDBOOK ...

Page 35: ...andard Probe and Handle Assembly Part No Description 13427 35cm 14ins Plastic Probe Open End 12481 Probe Handle Assembly incl filters 12712 Clear Sample Line x 1 5m 4ft 10ins approx Fig 4 1 Instrument Standard Probe 4 Sample Line Inlet Clear Sample Tubing 12712 Probe Handle Assembly 12481 Plastic Probe Open End 13427 ...

Page 36: ...ssembly 13655 Swan Neck Probe c w Shroud Fig 4 2 Extended Survey Probe For a comprehensive list of accessories supplied with the instrument and additional accessories available see Chapter 7 ACCESSORIES For examples of various probe applications see Appendix B APPLICATIONS Swan Neck Probe 13655 PPM Probe Filter Tubing Assembly 42765 Extended PPM Probe Handle Assembly 42764 Probe Adaptor Mid PPM Ga...

Page 37: ...onths The batteries can be charged on the instrument but the instrument itself should be switched off Regular complete discharge will keep the battery pack in good condition To charge the battery pack use the GMI In Vehicle Charging Station part no 14810 Note Other charging options are available For more details contact GMI or an authorised distributor Replacing the Battery Pack The following proc...

Page 38: ...500R USER HANDBOOK Fig 5 1 Loosen Instrument Base Screws 2 Remove the battery pack Fig 5 2 Remove Battery Pack 3 Insert new battery pack 4 Fasten base screws 5 Check the instrument switches on and works to specification ...

Page 39: ... switched on without suitable filters installed If a blockage occurs the SAMPLE FAULT indicator is displayed Check the sample line and probe handle for blockage Press to clear the SAMPLE FAULT message Replace the filter s if the message does not clear To replace the filter s proceed as follows 1 Unscrew the probe handle assembly Fig 5 3 Filter Assembly Hydrophobic Filter Cotton Particulate Filter ...

Page 40: ...t the hydrophobic filter The yellow label on the filter fits against the yellow label on the probe handle 7 Reassemble the probe handle assembly Probe Handle Assembly Option Part No 13561 Fitting of an in line filter assembly to the probe handle as shown in Fig 5 4 will minimise water and dust ingress Fig 5 4 Probe Handle and In line Filter Assembly Caution The instrument should never be switched ...

Page 41: ... Filter Accessory To replace the Dust Filter in the Dust Filter HousingAssembly proceed as follows 1 Unscrew the Filter Housing Assembly Fig 5 5 Fig 5 5 Dust Filter Assembly 2 Remove Dust Filter then discard 3 Check Probe Washer and Probe Sealing Washer for signs of damage or wear and replace if necessary 4 Fit new Dust Filter 5 Reassemble the Filter Housing Assembly Probe Sealing Washer Dust Filt...

Page 42: ...embly 2 Remove Hydrophobic Filter then discard 3 Check Probe Washer and Probe Sealing Washer for signs of damage or wear and replace if necessary 4 Fit new Hydrophobic Filter Note The filter should be installed with the yellow label on the filter facing the yellow label on the housing flange 5 Reassemble the Filter Housing Assembly Water Filter Housing Assembly Probe Sealing Washer Yellow label Hy...

Page 43: ...n without suitable filters installed If a blockage occurs the SAMPLE FAULT indicator is displayed Check the sample line probe handle and coalescing filter for blockage Press to clear the SAMPLE FAULT message Replace the filter s if the message does not clear To replace the filter s proceed as follows 1 Carefully unscrew the bowl from the filter housing and empty any water which may have collected ...

Page 44: ...using then remove and discard the coalescing filter 3 Using a dry cloth clean the bowl housing and spindle to make sure that they are free from dirt and water 4 Fit a new coalescing filter to the spindle then replace in the filter housing 5 Replace the bowl and tighten to secure ...

Page 45: ...matic Calibration The GMI Gas Delivery Unit GDU allows full automatic calibration Mobile Calibration The GMI Mobile Bump Calibration Station allows full automatic calibration when installed in a vehicle linked to a PC running GMI software Manual Calibration The instrument can be linked to a PC running GMI flexiCal Plus software Note The calibration systems above are manufactured by GMI For more de...

Page 46: ... expected This is no guarantee however as the precise application of the product is unknown to Teledyne GMI Individual codes of practice may dictate shorter periods Regular checking establishes a pattern of reliability and enables the calibration check to be modified in line with operational experience The higher the risk the more frequently calibration should be checked ...

Page 47: ...12370 Carrying Harness 12451 Hex Driver for base screws 10077 Cotton Particulate Filters Box of 10 x 2 12712 Sample Line Tubing 1 5m 4ft 10ins 12481 Probe Handle c w Filters 13427 35cm 14ins Plastic Probe Open End 42605 Probe Inline Double Filter Assembly 12688 Probe Sample Line Adaptor 42911 User Handbook 42309 Quick Operating Guide 7 ...

Page 48: ...r Assembly c w Filter Use with 13561 12393 80cm 31ins Plastic Probe Solid End 13413 Small Stainless Steel Flue Probe Open End Use with 12481 42215 Coalescing Filter Assembly Use with 13413 75174 Coalescing Filter Use with 42215 12358 Hydrophobic Filter Use with 12481 42183 42388 Dust Filter Box of 20 Use with 42184 12379 Probe Sealing Washer Use with 42183 42184 42235 Probe Washer Use with 42183 4...

Page 49: ...ning Courses are available on all GMI products Contact GMI Product Support Department for further details Tel 44 0 141 812 3211 e mail gmi_sales teledyne com World Wide Web Visit Teledyne GMI web site at www teledynegasandflamedetection com 8 ...

Page 50: ...8 2 GASURVEYOR 7B 500R USER HANDBOOK ...

Page 51: ... ppm 15 ppm 5 reading O2 0 to 21 0 1 0 5 0 5 3 reading 21 to 25 1 n a 0 5 3 reading Note All the values above are at normal temperature and pressure Humidity is between 0 and 95 RH non condensing Pressure changes at the inlet and exhaust are minimised as they may cause transient changes in reading Size 180mm 7 08 x 95mm 3 74 x 105mm 4 13 Weight 1 7kg 3 75lbs with rechargeable batteries Operating T...

Page 52: ...embly connected to instrument with sample line and uses instrument integral pump with flow fail sensor The sample path is protected by the hydrophobic filter and automatic pump switch off Power Source Rechargeable battery pack providing approximately 9 hours runtime from fully charged at 20o C 68o F Sensor Lifetime The CO sensor should be operated at normal atmospheric pressure conditions and have...

Page 53: ...cessory The solid end probe is designed for use with BarHole probing and below ground surface gas monitoring Holes up the sides of the probe try to prevent water being drawn into the instrument and the clear sample line also shows if water is being drawn Fig B 1 Solid End Probe B ...

Page 54: ...handle to the instrument and allows the pump to draw the sample into the instrument analysing chamber The probe is manufactured from the a plastic material which is flexible and extremely robust The probes wall thickness provides the flexible strength to withstand bending around a radius or sustaining damage to or collapse of the sampling path if accidentally stood on by the operator Note The Samp...

Page 55: ... air dilution Fig B 2 Bellows Probe The Bellows Probe is of stainless steel construction housed in a flexible rubber boot It is generally used with the Probe Adaptor which connects to the Probe Handle Assembly Part No 13561 The Probe Handle incorporates a Sample Line Part No 12712 which is connected to the instrument and allows the pump to draw the sample into the instrument analysing chamber ...

Page 56: ...ncorporate an in line filter A Water Filter Assembly Part No 42183 or Dust Filter Assembly Part No 42184 are available and can be fitted as an accessory if required Refer to Chapter 7 ACCESSORIES Swan Neck Probe This probe is also available as an accessory Fig B 3 Swan Neck Probe ...

Page 57: ...n 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 line which is connected to the instrument and allows the pump to draw the sample into the instrument analysing chamber Note This model of Probe Handle does not incorporate an in line filter A Water Filter Assem...

Page 58: ... Filter 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 with the Probe Handle Assembly Part No 12481 incorporating both Cotton and Hydrophobic Filters to prevent the ingress of dirt The Sample Line Part No 12712 connects the probe handle to the instrum...

Page 59: ...Checks 2 9 Bellows Probe B 3 Button Panel 3 2 C Calibration 6 1 Calibration Date Features 3 4 Calibration interval 3 4 Calibration Validity 6 2 Carbon Monoxide 0 1000 ppm 2 3 CGI Button Operation 3 7 CGI Mode Combustible Gas Indicator 3 5 CHECK ZERO 3 10 CO Alarm Indication 3 5 Confidence Signal 2 5 Construction 2 8 A 2 Copyright i Cotton Particulate Filter 5 3 CSM Button Operation 3 9 CSM Mode Co...

Page 60: ... line filter assembly 5 4 In line Water Filter 5 6 Instrument Front Plate 3 1 Instrument Service Label 2 1 Introduction 1 1 L LEL 0 100 2 2 Liability i Liquid Crystal Display LCD 2 9 M Manual Calibration 6 1 Manual Datalogging 2 7 3 7 3 9 Methane 0 1000 ppm 2 2 Mobile Calibration 6 1 Modes of Operation 3 5 Modification Notices i O OFF 3 10 Operating Parameters A 1 Operating Temperature A 1 Operati...

Page 61: ... S Safety ii SAMPLE 3 10 SAMPLE FAULT 3 10 5 3 Sampling System A 2 Sensor Lifetime A 2 Service Date Features 3 4 Service interval 3 5 Size A 1 Software i Stainless Steel Flue Probe B 6 Standard Probe and Handle Assembly 4 1 Storage Handling and Transit ii STORE 2 7 3 11 Swan Neck Probe 4 2 B 4 Switching OFF 3 6 3 8 Switching ON 3 6 3 8 T Training 8 1 V Volume Gas 0 100 2 3 W Warm Up Sequence 3 2 W...

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Page 64: ...teledyne com www teledynegasandflamedetection com Service Calibration Centre 25 Cochran Close Crownhill Milton Keynes MK8 0AJ Tel 44 0 1908 568 867 gmi_service teledyne com Service Sales USA 14880 Skinner Road Cypress TX 77249 USA Tel 1 713 559 9200 Fax 1 713 893 6729 detcon sales teledyne com ...

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