GMI PS241 - 2.2.8 Select Calibration Gas (Option)

2-8
USER HANDBOOK
2.2.8 Select Calibration Gas (Option)
This congurable option is available to allow the user to
measure a different ammable gas from that which was
originally used to calibrate the instrument.
This action allows the instrument software to compensate and
display more accurate readings.
The default is to select calibration gas at ‘Setup’.
Fig. 2-10 Cal Gas Selection
When this option is displayed, as shown in Fig. 2-10, the gas
that was originally used to calibrate the instrument is identied
between two arrowheads.
Note: The instrument calibration certicate also identies the
original calibration gas type.
To select a different gas type, press the Left Hand (LH) button
to step through the available options from Methane,
Propane, Butane and Pentane.
When the required option is highlighted, press and hold the
Right Hand (RH) button to select.
Note: Accuracy for the re-selected gas type is + 20%.