GA2000 / GA2000Plus Gas Analyser
LFGASOM010 / Issue 1 Geotechnical Instruments (UK) Ltd Page 1
TABLE OF CONTENTS
1. INSTRUCTIONS SPECIFIC TO HAZARDOUS AREA INSTALLATIONS......................................4
1.1 SAFETY RELATED INFORMATION INTHIS MANUAL ............................................................................4
1.2 SAFETY INFORMATION ....................................................................................................................4
2. INTRODUCTION .............................................................................................................................5
3. GENERAL OPERATIONAL FEATURES ........................................................................................6
3.1 MAIN FEATURES OF THE INSTRUMENT..............................................................................................6
3.2 PHYSICAL CHARACTERISTICS OF ANALYSER ....................................................................................6
3.3 SWITCHING THE ANALYSER ONAND OFF........................................................................................7
3.4 KEYPAD LOCK ................................................................................................................................7
3.5 WARM-UP SELF TEST.....................................................................................................................7
3.6 WARNING AND ERROR DISPLAY ......................................................................................................8
3.7 COLD START ..................................................................................................................................8
3.8 STORAGE.......................................................................................................................................9
3.9 BATTERY/CHARGING ......................................................................................................................9
3.10 ‘READ GAS LEVELS’ SCREEN ...................................................................................................... 9
3.11 EVENT LOG (OPTIONAL UPGRADE)..............................................................................................9
3.12 CALIBRATION RECORD (OPTIONAL UPGRADE) .............................................................................10
3.13 TECHNICIAN LOG IN...................................................................................................................10
3.14 MEMORY ..................................................................................................................................11
3.15 CO MEASUREMENTS ................................................................................................................ 11
3.16 ZERO TRANSDUCERS................................................................................................................11
3.17 UPDATE SITE DATA ..................................................................................................................11
3.18 DATA LOGGING.........................................................................................................................11
3.19 PRINT DATA .............................................................................................................................12
3.20 ADJUST CONTRAST...................................................................................................................12
3.21 GAS FLOW FROM BOREHOLE (OPTIONAL UPGRADE) ................................................................... 12
4. TAKING READINGS .....................................................................................................................13
4.1 PRELIMINARY CHECKS.................................................................................................................. 13
4.2 UPDATE SITE DATA ......................................................................................................................13
4.3 TAKING READINGS - WITH ID........................................................................................................13
4.4 TAKING READINGS – WITHOUT ID................................................................................................. 15
4.5 TEMPERATURE PROBE READING...................................................................................................16
4.6 EXTERNAL GAS POD READING ......................................................................................................16
4.7 ANEMOMETER PROBE READING ....................................................................................................16
4.8 FLOW POD READING ....................................................................................................................16
4.9 CROSS-GAS EFFECTS ..................................................................................................................16
5. MODEM OPERATION...................................................................................................................17
6. CALIBRATION .............................................................................................................................. 19
6.1 INTRODUCTION.............................................................................................................................19
6.2 CALIBRATION GASES....................................................................................................................20
6.3 SET-UP.......................................................................................................................................21
6.4 EQUIPMENT..................................................................................................................................21
6.5 GAS ANALYSER............................................................................................................................ 22
6.6 LOW LEVEL CALIBRATION - MIXTURES 1AND 2 .............................................................................. 22
Step One ........................................................................................................................................... 23
Step Two ........................................................................................................................................... 23
Step Three......................................................................................................................................... 24
Step Four........................................................................................................................................... 24
6.7 SPAN MULTI GAS .........................................................................................................................25
6.8 HIGH LEVEL CALIBRATION - MIXTURE 3 .........................................................................................25
Step One ........................................................................................................................................... 25
Step Two ........................................................................................................................................... 26
Step Three......................................................................................................................................... 26
