Gas Data GFM 436 Manuel utilisateur
9ENG8008 GFM436 User Manual
Exported on
02/02/2024
9ENG8008 GFM436 User Manual
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Table of Contents
1 Handheld Gas Analyser for Landfill......................................................................6
2 WARNINGS .............................................................................................................7
3 GFM436 ..................................................................................................................8
4 GFM436 General Information ...............................................................................9
4.1 Introduction ................................................................................................................................9
4.1.1 Features..................................................................................................................................................................... 9
4.2 Spares List .................................................................................................................................10
5 Safe Use of the GFM436 ......................................................................................12
5.1 Important Safety Related Points..............................................................................................12
6 GFM436 Product Specification ...........................................................................14
6.1 Introduction to the GFM436 Functions and Features .............................................................14
6.2 GFM436 Instrument Specification............................................................................................16
6.3 Specialist Functionality ............................................................................................................18
6.3.1 Lower Explosive Limit ............................................................................................................................................. 18
6.3.2 Managing Hydrocarbons Using the Hexane Channel............................................................................................ 18
6.3.3 PID Compensation Factor Prediction .................................................................................................................... 19
6.4 Third Party Approvals ...............................................................................................................20
6.4.1 ATEX, UKEX and IECEx............................................................................................................................................. 20
6.5 In the Case .................................................................................................................................21
6.6 Front Panel Control Layout ......................................................................................................23
6.7 GFM436 Connections ................................................................................................................24
6.8 Optional Extra Accessories .......................................................................................................25
7 GFM436 Operation ..............................................................................................27
7.1 Starting Up ................................................................................................................................27
7.2 Navigating the screens .............................................................................................................28
7.3 Reading the Displays.................................................................................................................29
9ENG8008 GFM436 User Manual
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7.4 View Readings ...........................................................................................................................35
7.5 Clock Display .............................................................................................................................37
7.6 Connecting the Gas Sample Pipe .............................................................................................38
8 Gas Readings .......................................................................................................41
8.1 Gas Display ................................................................................................................................41
8.2 Gas Display Two ........................................................................................................................42
9 Pressure Readings...............................................................................................44
9.1 Connecting the Gas Flow Pipe..................................................................................................44
9.2 Taking a Static Pressure (SP) Measurement............................................................................46
10 Gas Velocity Readings.........................................................................................48
10.1 Gas Velocity Measurement with Optional Vane Anemometer................................................48
11 Gas Temperature Readings ................................................................................50
11.1 Gas Temperature Measurement with Optional Temperature Probe .....................................50
11.2 DIP Meter Reading.....................................................................................................................50
12 Storing Data.........................................................................................................52
12.1 Storing Data...............................................................................................................................52
12.2 Data storage ID structure..........................................................................................................53
12.3 Sample Point Setup ..................................................................................................................57
12.4 Logging Setup ...........................................................................................................................61
12.4.1 Pump Time .............................................................................................................................................................. 63
12.4.2 Period ...................................................................................................................................................................... 63
12.4.3 Total Logs ................................................................................................................................................................ 64
12.4.4 Bat Save On ............................................................................................................................................................. 64
12.5 Logging Display .........................................................................................................................65
12.6 Logging Setup ...........................................................................................................................67
12.7 Store Menu ................................................................................................................................67
13 User Calibration ..................................................................................................68
14 Auto Turn Off .......................................................................................................75
9ENG8008 GFM436 User Manual
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15 GFM436 - Maintenance........................................................................................76
16 Appendix A – Velocity Flow Conversion Charts .................................................77
17 Appendix B – Understanding Instruments For Use In Flammable
Atmospheres .......................................................................................................78
17.1 Hazardous areas classified by zones........................................................................................78
17.2 Different types of gas ................................................................................................................78
17.3 Design and construction of intrinsically safe instruments for use in flammable
atmospheres .............................................................................................................................79
17.4 Testing and Certification ..........................................................................................................80
18 Appendix C – Vane Anemometer ........................................................................81
18.1 Operating Instructions..............................................................................................................81
18.2 Important notes ........................................................................................................................81
18.3 Streamline Measuring Head .....................................................................................................81
18.4 Response time...........................................................................................................................82
18.4.1 Response Time of electronics:................................................................................................................................ 82
18.4.2 Response Time of Vanes: ........................................................................................................................................ 82
18.4.3 Technical data – MiniAir 6 Micro............................................................................................................................. 82
18.5 Cleaning and maintenance.......................................................................................................82
18.5.1 General handling tips.............................................................................................................................................. 83
18.5.2 Vane probes............................................................................................................................................................. 83
18.5.3 Cable, extension rod, case...................................................................................................................................... 84
18.5.4 Snap Head ............................................................................................................................................................... 85
18.5.5 Checking/factory inspections................................................................................................................................. 85
19 Appendix D – Warranty Policy ............................................................................86
19.1 Conditions and exclusions........................................................................................................86
19.2 Disposal .....................................................................................................................................86
20 Appendix E – Declarations of Conformity ..........................................................87
20.1 EU DoC .......................................................................................................................................87
20.1.1 The Electromagnetic Compatibility Directive 2014/30/EU: ..................................................................................87
20.1.2 ATEX Directive 2014/34/EU: .................................................................................................................................... 88
9ENG8008 GFM436 User Manual
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20.1.3 IECEx: ....................................................................................................................................................................... 88
20.2 Notified body.............................................................................................................................89
20.3 Additional information .............................................................................................................89
20.4 Signature ...................................................................................................................................90
20.5 UK DoC.......................................................................................................................................90
20.5.1 The Electromagnetic Compatibility Regulations 2016:......................................................................................... 91
20.5.2 Equipment and Protective Systems Intended for use in Potentially Explosive Atmospheres Regulations
2016:......................................................................................................................................................................... 92
20.6 Notified body.............................................................................................................................92
20.7 Additional information .............................................................................................................92
20.8 Signature ...................................................................................................................................93
21 Appendix F – ATEX, UKEX and IECEx Certificate ................................................95
22 Appendix G – Non-EX Safety Critical Information..............................................98
23 Appendix H - Three Letter Codes........................................................................99
9ENG8008 GFM436 User Manual
1 mailto:[email protected]
2 https://gasdataltd.atlassian.net/wiki/spaces/IMSM/pages/528548839/Gas+Data+Contact+Information
3 https://gasdataltd.atlassian.net/wiki/spaces/IMSM/pages/528548839/Gas+Data+Contact+Information
Handheld Gas Analyser for Landfill- 6
1 Handheld Gas Analyser for Landfill
Gas Data Ltd.
Unit D
Earlplace Business Park
Fletchamstead Highway
Coventry
CV4 9XL
+44 (0) 24 7630 331123
9ENG8008 GFM436 User Manual
WARNINGS- 7
2 WARNINGS
The manufacturer reserves its right to update the contents of this manual, in line with the evolution of the product.
Text and pictures in the manual are not binding.
Copyright © 2023
All rights to translation, adaptation and reproduction by any process reserved in all countries. No part of this
document may be copied, reproduced or transcribed without the written consent of the manufacturer.
No part of this document may be circulated outside of the manufacturer in this form.
9ENG8008 GFM436 User Manual
GFM436- 8
3 GFM436
The GFM436 gas analyser is part of the GFM range, designed and manufactured by Gas Data Ltd.
9ENG8008 GFM436 User Manual
GFM436 General Information- 9
4 GFM436 General Information
4.1 Introduction
The Gas Data GFM436 handheld series of analysers is designed specifically for monitoring and analysing gas content
of landfill, biogas and contaminated land sites. It measures the methane, oxygen and carbon dioxide content of site
gases, gas pressure or vacuum, and gas velocity.
Operation is extremely simple, yet the readings obtained are highly accurate. The instrument uses Gas Data's
proprietary infra-red methane and carbon dioxide sensors and a combination of industry standard electrochemical
gas sensor cells. A variety of external sensors can be plugged in, e.g. vane anemometer to measure gas velocity or a
temperature probe for ambient and other temperatures.
The GFM436 series has rechargeable Nickel Metal Hydride batteries giving around eight hours use between charges.
A battery charger and mains unit is supplied with the instrument and a field replaceable battery pack is also
available as an optional extra.
4.1.1 Features
· Up to 7 gas analysis channels.
· 4 Wavelength optical infra-red analyser.
· Atmospheric pressure.
· Powerful sample pump.
· User replaceable sample filter.
· Field replaceable/rechargeable battery pack.
· Optional flow, pressure and temperature.
9ENG8008 GFM436 User Manual
GFM436 General Information- 10
4.2 Spares List
Category Description GD order code
Spares GFM internal Filters 15mm 18811
GFM external Filters 25mm 18810
GFM external Filters 50mm 18818
GFM/Click! Sample Pipe Connector (Male Metal) 18812
Chrome Plate Brass Coupling 1/8" ID Hose St.Thru 20710
GFM/Click! Sample Pipe Connector (Male plastic) 18934
GFM426 and GFM526 Sample Pipe 20726
GFM Sample Pipe 17227
GFM43x Sample Tube 17226
GFM43x/610 Flow Tube 16480
GFM426 and GFM526 External Filter Housing Assembly - Black ABS 20838
GFM Drilled Battery Cover, Black, ABS 17214
GFM Spares Kit 14265
Inlet housing 17204
Power Battery pack 16457
AC Mains Battery charger 16455
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