Warnin
g
Warning alert text Cause Remedy
04 The measuring
channel is not yet
calibrated
The sensor connected
to a measuring channel
has not yet been cali‐
brated
Calibrate the sensor
71 The battery
needs to be
replaced
The battery has a
service life of about 10
years, but this can be
reduced by environ‐
mental factors
Replace the battery or inform
Service
Battery BR 2032, Part No.
732829
72 Check the time The time has changed
when replacing the bat‐
tery
Reset the time
73 The fan has a
fault
The internal fan is no
longer rotating
Please check to see whether
an object has become trapped
in the impeller otherwise return
the controller to the manufac‐
turer for inspection
89 System warning
1
There is a system error Return the controller to the
manufacturer for inspection
[Diagnostics]
154
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