ALTAIR 5X/ALTAIR 5X IR
GB
31
abled 100 % Vol methane IR sensor, the user can clear the LockAlarm state only
by turning the device OFF, and then ON again in a fresh air environment. When cat-
alytic combustible gas reading digits appear, the device is available for measuring
gases once again.
LockAlarm of the catalytic combustible sensor occurs during Bump
Testing and calibration of a % Vol combustible IR sensor.
After the IR sensor Bump Test, the LockAlarm must be cleared [as de-
scribed above] before the catalytic combustible sensor is again able to
measure and provide readings.
Check your national standard values for 100 % LEL. Some countries
use 5 Vol % and some use 4.4 Vol % as 100 % LEL CH
4
.
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