Oldham iTrans 2, Installation And Operation Manual, Page: 102 / 106

102
The propane IR sensor is factory configured to accurately monitor propane
gas. As seen in Figure F - 2 the cross-sensitivity of the propane IR sensor
does permit accurate measure of other combustible gases via a cross-
reference factor. It should be noted however, that the propane-IR sensor
WILL respond to other combustible gases and is not propane specific.
Figure F - 2 Cross-sensitivity chart for Propane IR Sensor
The output of the IR sensor can be disrupted by sudden changes in
temperature. If there is an excessive change in the ambient temperature,
gas sample temperature or flow rate, then the output signal will be
monmentarily frozen. Correct operation is restored when the effects of the
transient have settled. Rates of change in the ambient temperature should
be restricted to 2°C/minute and gas flow rates kept below 0.6 L/minute.
Extreme pressure variations will cause errors in readings. The unit should
be recalibrated if the atmospheric pressure change is greater than 10% from
the orignial pressure.
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