Faults - WIKA O-10 Betriebsanleitung

8. Faults

8. Faults
In the event of any faults, first check whether the pressure sensor is mounted correctly, mechanically and electrically.
EN
Faults
No output signal
Deviating zero point signal
Deviating zero point signal
Constant output signal upon
change in pressure
Signal span too small
Signal span varies
Signal span varies/inaccurate
Signal span drops/too small
If complaint is unjustified, we will charge you the complaint processing fees.
CAUTION!
If faults cannot be eliminated by means of the measures listed above, shut down the instrument
immediately, and ensure that pressure and/or signal are no longer present, and secure the instrument
from being put back into operation inadvertently. In this case, contact the manufacturer. If a return is
needed, please follow the instructions given in chapter 9.2 "Return".
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Causes
Cable break
Overpressure limit exceeded
Operating temperature too high/low
Mechanical overload caused by overpressure
Mechanical overload caused by overpressure
EMC interference sources in the environ-
ment; for example, frequency converter
Operating temperature too high/low
Signal span drops/too small
Measures
Check the continuity
Observe the permissible overpressure safety
(see chapter "3. Specifications")
Observe the permissible temperatures
(see chapter 3. "Specifications")
Replace pressure sensor; if it fails repeatedly,
contact the manufacturer
Replace pressure sensor; if it fails repeatedly,
contact the manufacturer
Shield the pressure sensor; cable shield;
remove source of interference
Observe the permissible temperatures
(see chapter 3. "Specifications")
Contact manufacturer and replace pressure
sensor
WIKA operating instructions pressure sensor, model O-10