30 WIKA operating instructions pressure switch, model PSD-3x
EN
11430486.07 04/2015 EN/DE/FR/ES
Problem Possible cause Measure
No output signal Cable break Check the continuity
No output signal No/wrong power supply Rectify the power supply
No/wrong output signal Wiring error Observe the pin assignment
Constant output signal upon change
in pressure
Mechanical overload caused by over-
pressure
Replace instrument; if it fails repeatedly,
contact the manufacturer
Deviating zero point signal Overpressure limit exceeded Observe the permissible overpressure limit
Signal span too small Mechanical overload caused by over-
pressure
Replace instrument; if it fails repeatedly,
contact the manufacturer
Signal span too small Power supply too high/low Rectify the power supply
Signal span drops Humidity has entered Assemble the cable correctly
Signal span drops/too small Diaphragm damaged, e.g. due to
impacts, abrasive/aggressive medium;
corrosion at diaphragm/process
connection
Contact manufacturer and replace
instrument
If complaint is unjustied, we will charge you the complaint processing fees.
CAUTION!
If deciencies 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, follow the instructions given in chapter 9.2 "Return".
8. Faults
To Next Page
Loading...
Need help?
General
