Faults - WIKA S-11 Manual De Instrucciones

Transmisor de presión con membrana aflorante
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9. Faults

9. Faults
In the event of any faults, first check whether the pressure transmitter is mounted correctly, mechanically
and electrically.
Fault
No output signal
No/wrong output signal
Constant output signal upon
change in pressure
Signal span too small/drops
Signal span varies/inaccurate
Deviating zero point signal
WIKA operating instructions pressure transmitter, model S-11
Possible cause
Cable break
No/wrong power supply
Wiring error
Mechanical overload caused by overpressure
Mechanical overload caused by overpressure
Diaphragm damage
Sealing/sealing face damaged/soiled, sealing
does not have a tight fit, threads jammed
EMC interference sources in the environment
(e.g. frequency converter)
Operating temperature too high/low
Instrument not earthed
Strongly varying pressure of the process
medium
Operating temperature too high/low
Other mounting position
Overpressure limit exceeded
Measure
Check the through drilling
Correct the power supply
Rectify the wiring
Replace instrument
Replace instrument
Replace instrument
Clean the sealing/sealing face,
replace sealing
Shield instrument; shield cable;
remove source of interference
Observe the permissible tempera-
tures
Earth the instrument
Damping; consulting by the manu-
facturer
Observe the permissible tempera-
tures
Adjust the zero point
Replace instrument
GB
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