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8
Troubleshooting
Faults
Packaging is damaged
No measured value at the
control unit
Incorrect measured value
at the control unit
Unexpected measured
value at the control unit
Unstable measured value
Wet sensor
Cause
Damage in transit
Electrical connection faulty or
interrupted
Sensing head aligned incorrectly, not
vertical
Sensor faulty or used up
Sensing head faulty
Loss of sensitivity
Filter clogged
Brief interference pulses <5 seconds
Dynamic signal fluctuations with a
period of more than 5 seconds can arise
from turbulence with fresh air
Sensing head was cleaned with water,
condensation
Remedy
Contact the supplier in case of a damaged sensing
head
Check installation for cable break
Install sensing head in accordance with assembly
instructions, vertical ±30°
Replace sensor
Replace sensing head
Check sensitivity with test gas
Replace filter
Interference caused by electrical equipment,
e.g. lighting, fans or heaters; identify device and
suppress interference
Not activity, continue to monitor
Wipe sensing head dry with a paper towel
en
Troubleshooting
19
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