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Incorrect sensor test The sensor self-test has detected a fault in a
sensor.
Switch the instrument off and then on again, or
remove and reconnect the power pack. If the fault
is still displayed, contact DrägerService.
Low IR signal The instrument has detected a fault in the
IR sensor.
#126: IR signal too low.
Switch the instrument off and then on again, or
remove and reconnect the power pack.
Change IR sensor, page 79
If the fault is still displayed, contact
DrägerService.
High IR signal The instrument has detected a fault in the
IR sensor.
#127: IR signal too high.
Switch the instrument off and then on again, or
remove and reconnect the power pack.
Change IR sensor, page 79
If the fault is still displayed, contact
DrägerService.
Fault Cause Remedy