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Operating Manual
OMGEM5KN – Iss. 5.1
Copyright – Geotechnical Instruments (UK) Ltd
The GEM5000 instrument has the facility to log user
calibrations as a validation tool.
A method of gas detection that works on the basis of a
chemical reaction with the target gas.
The CIRIA guideline ‘Assessing the risks posed by
hazardous ground gases to buildings’ proposes that gas
concentrations and flow rates should be monitored.
Process used to clear out gas from the sample tube and
analyser prior to taking a new reading.
Carbon dioxide
Data logging enables the operator to leave the analyser
unattended to take samples at predetermined intervals
for a set period of time
Terminology used for the movement of data from the
analyser to the GAM application on the PC.
Dual beam infrared absorption
Method of gas detection by measuring how much
infrared is absorbed by the target gas.
Used as an aid to monitoring the use of the analyser. It
can also be used as a diagnostic tool.
The event log can be viewed via Gas Analyser Manager.
It cannot be viewed on the analyser screen.
The usual manner for the gas to exit the analyser is via
the exhaust port located on the top side of the
analyser. This port should have an exhaust tube
attached.
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