GEM2000 Range Gas Analysers
OMGEMN1.41
Copyright 2009 Geotechnical Instruments (UK) Limited
Page 73
Step 2
From the ‘Check Calibration’ screen:
Scroll using
and press
to select required gas channel.
Enter the appropriate value for the highlighted channel then press
.
Repeat for other channels.
Step 3
Attach the flow regulator with target gas.
Do not run the pump.
Step 4
Attach the regulator to the inlet port and turn on at the regulator.
Do not run the pump.
Step 5
Allow the gas to flow through the unit for approximately two minutes or
until reading stabilises.
Step 6
Step 7
From the ‘Check Calibration’ screen:
Press
to enter the ‘Calibration Menu’.
Scroll
to ‘Confirm Calibration’.
Press
to select ‘Confirm Calibration’.
Scroll
to ‘Confirm CH
4
@
‘
Target Gas’.
Press
to select ‘Confirm CH
4
@
‘
Target Gas’.
Press
Finished.
Repeat for other channels if required.
This information will then be stored in the event log and can be
downloaded and viewed using GAM (Gas Analyser Manager).
END
8.8 Factory Settings
This option will reset the gas analyser to all of its factory programmed settings and will
clear ALL the user defined calibration points.
If in any doubt please contact Technical Support at Geotech (UK) Limited on +44(0)1926
338111
From the main ‘Check Calibration’ screen:
Press
to enter the ‘Calibration Menu’.
Scroll
to ‘Factory Settings’.
Press
to select ‘Factory Settings’.
Two messages will follow, ‘Resetting please wait.’ and ‘Factory settings restored.’
8.9 Last Field Calibration
This option can be found in the calibration menu of the ‘Field Calibration’ section. When
selected, this option will display the time and date that the last field calibration was
perfomed on the insturment.
