8. Faults
8. Faults
In the event of any faults, first check whether the pressure sensor is mounted correctly,
EN
mechanically and electrically.
Faults
No output signal
No/wrong output signal
Constant output signal
upon change in pressure
No communication
No cyclic transmission
Signal span too small/drops
22
Causes
Cable break
No/wrong power supply or current pulse
Wiring error
Mechanical overload caused by
overpressure
Adjustment of node ID
Transmission rate incorrect
PDO mapping
Transmission type incorrect
Mechanical overload caused by over-
pressure
Diaphragm damaged, e.g. due to
impacts, abrasive/aggressive medium;
corrosion at diaphragm/process connec-
tion; transmission medium missing
Sealing/sealing face damaged/soiled,
sealing does not have a tight fit, threads
jammed
WIKA operating instructions pressure transmitter, model P-3x
Measures
Check the through drilling
Correct the power supply
Observe the pin assignment
Replace instrument; if it fails repeat-
edly, contact the manufacturer
Check the configuration parameters
Check the configuration parameters
Replace instrument; if it fails repeat-
edly, contact the manufacturer
Contact manufacturer and replace
instrument
Clean the sealing/sealing face,
replace sealing if applicable