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Symptom
Check
Action
Refer-
ence
page
High concentration gas
detected
This message indicates that high
concentration gas was detected
at 40% O
2
or higher or 40% CO
2
or higher for two minutes or more.
Was a high concentration gas sample just
measured?
If the sensor is exposed to high concentration gas, the
life could be shortened. When halting measurements
for two minutes or longer, measure the atmosphere
once to lower the concentration.
If the symptoms are not resolved even after
taking the above actions, the main unit or
sensor may be faulty.
Make a request for repairs.
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