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GEM5000 Gas Analyzer
7.3.3
Device information ................................................................................... 29
7.3.4
Diagnostics ............................................................................................. 29
7.3.5
Navigation (optional) ................................................................................ 30
7.4
User settings ................................................................................................ 31
7.4.1
Operating language .................................................................................. 31
7.4.2
Units of measurement .............................................................................. 32
7.4.3
ID selection ............................................................................................ 33
7.4.4
Routes ................................................................................................. 35
7.4.5
Adjust backlight ....................................................................................... 35
7.4.6
Adjust volume ......................................................................................... 36
7.4.7
User Prompts .......................................................................................... 37
7.5
Exit menu .................................................................................................... 37
8.0
TAKING READINGS ......................................................................................... 38
8.1
Preliminary checks before taking readings (best practice) .................................... 38
8.1.1 Creating an ID ........................................................................................... 39
8.2 Change screen layout ....................................................................................... 40
8.3
Answering site questions ................................................................................ 40
8.4 Answering ID questions .................................................................................... 40
8.5
Special action ............................................................................................... 41
8.5.1 Configuration of the data logging option ......................................................... 42
8.5.2 Profiling option ........................................................................................... 42
8.6
GEM analyser in GA mode .............................................................................. 43
8.7
The gas flow measurement screen ................................................................... 43
8.8
How to use an anemometer (optional) .............................................................. 44
8.9
How to use a pitot tube (optional) ................................................................... 47
8.10
8.8.1
Cross gas effects on chemical cells ............................................................. 48
8.9.2
Cross-gas effects on methane, carbon dioxide and oxygen ............................. 49
8.11
How to use a temperature probe (optional) .................................................... 51
8.12
How to identify a borehole using the GPS feature (optional) .............................. 52
8.13
Taking gas and flow measurement ................................................................ 55
9.0
CALIBRATION ................................................................................................ 56
9.1
Calibration introduction .................................................................................. 56
9.2
Frequency of calibration - best practice ............................................................ 56
9.3
Calibration gases ........................................................................................... 57
9.4
Calibration set-up .......................................................................................... 57
9.5
Calibration equipment .................................................................................... 58
9.6
Gas analyser ................................................................................................ 59
9.7
Calibration processes - best practice ................................................................ 59
9.7.1
Gas Check in fresh air .............................................................................. 60
9.7.2
Calibration - mixtures 1, 2, & 3 ................................................................. 61
9.8
Restore to factory ....................................................................................... 62
9.9
Calibration history ......................................................................................... 62
9.10
Calibration summary ................................................................................... 62
10.0
PROBLEM SOLVING ..................................................................................... 63
11.0
WARNING AND ERROR DISPLAY.................................................................. 63
12.0
SERVICE ...................................................................................................... 64
13.0
WARRANTY POLICY ..................................................................................... 65
14.0
GLOSSARY OF TERMS .................................................................................. 73
S filter (optional) ................................................................ 48
2
OMGEM5KN4.7.1
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