Heath Consultants Personal Surveyor (PS200 Series) - Manual (Page 33)

2-9
OPERATION
2.2.9 Select Calibration Gas (Option)
This configurable option is available to allow the user to
measure a different flammable 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’. Details are
available in the ‘CONFIGURATION HANDBOOK’ CD-ROM
(Part No. 64193).
Fig. 2-11 Cal Gas Selection
When this option is displayed, as shown in Fig. 2.11, the gas
that was originally used to calibrate the instrument is identified
between two arrowheads.
Note: The instrument calibration certificate also identifies 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%.