WIKA E-10 Betriebsanleitung Seite 15

9. Trouble shooting
Failure
Output signal unchanged after change
in pressure
Signal span dropping off/too small
Signal span too small
Signal span drops off
Signal span erratic
In case of unjustified reclamation we charge the reclamation handling expenses.
*) Make sure that after the setting the unit is working properly. In case the error continues to exist send in the instrument for reparation (or
replace the unit).
If the problem persists, contact our sales department.
USA, Canada
If the problem continues, contact WIKA or an authorized agent for assistance. If the pres-
sure transmitter must be returned obtain an RMA (return material authorization) number and
shipping instructions from the place of purchase. Be sure to include detailed information about
the problem. Pressure transmitters received by WIKA without a valid RMA number will not be
accepted.
Process material certificate (Contamination declaration for returned goods)
Purge / clean dismounted instruments before returning them in order to protect our employees
and the environment from any hazard caused by adherent remaining media.
Service of instruments can only take place safely when a Product Return Form has been
submitted and fully filled-in. This Return Form contains information on all materials with which
the instrument has come into contact, either through installation, test purposes, or cleaning.
You can find the Product Return Form on our internet site (www.wika.de / www.wika.com).
1
Possible cause
Wrong supply voltage or current spike
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector; transmission fluid missing.
Power supply too high/too low
Mechanical overload through over-
pressure
Moisture present (e.g. at the cable tail) Install the cable correctly
Electromagnetic interference source in
the vicinity, e.g. inverter drive
WIKA Operating instructions/Betriebsanleitung E-10, E-11
Procedure
Replace instrument
Contact the manufacturer and replace
the instrument
Correct the power supply in line with
the Operating Instructions
Replace instrument
Shield the device; shield the cables;
remove the interference source.
GB