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This sensor relies on catalytic oxidation to sense and respond to combustible gases and
vapors. As the term implies, oxygen plays a very crucial part in the operation. If there is a
depletion of oxygen, there will be a loss of response from the sensor. If the combust ible
gas is in mixture with nitrogen or some other inert gas, there may be no response at all,
depending on the level of oxygen present.
Conversely, if the atmosphere is enriched with oxygen, the response wi l l be enhanced
and may even damage the sensor. Frequent checks should be made to determine sensor
response and accuracy. These sensors are intended for area monitoring, in the work
environment and if used in process control or other special situations, the factory should
be consulted.
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