WIKA FSD-3 Betriebsanleitung Seite 29

6. Faults
Fault
Wrong output signal
Wrong output signal and too long
response time
EN
Signal span too small
Signal span drops
24
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Possible cause
Sensor drift caused by chemical attack
Wrong mounting geometry, for example
mounting depth too deep or heat dissipation
too high
Deposit on the probe
Power supply too high/low
Moisture has entered
Measure
Check media compatibility
Move the temperature-sensitive area of the
probe into the medium
Remove deposit
Rectify the power supply
Fit the cable correctly
WIKA operating instructions flow switch, model FSD-3