When the gas analyser is being calibrated, there are two
possible exits for the gas, via the usual manner out of the
exhaust (yellow) port of the analyser or in cases of over-
pressurisation the 1/16
”
port on the red pressure relief valve
located on the regulator.
It is recommended that both ports have exhaust tubing
attached.
The exhaust tubing must emerge in a well-ventilated area.
Ensure there are no leaks in the tubing and connections.
The calibration of the gas analyser should be carried out in a
safe area with all necessary precautions taken when using
potentially dangerous, explosive or toxic gases.
Note: There is also potential for gas to expel from the internal flow (blue) port of the
gas analyser.
9.5 Calibration equipment
The diagram below displays the regulator and tubing equipment for user calibration:
Certified calibration gas, available in either 58 litre or 110 litre gas canisters, are
supplied with the Geotech calibration kit. Please refer to the Geotech website
www.geotechuk.com for further information.
The regulator supplied with the calibration kit is pre-set for flow rates and pressure
that are factory set.
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