WIKA WUD-20 Betriebsanleitung Seite 21

10. Trouble shooting
Failure
No/False output signal
Abnormal output signal or abnormal zero
point signal
Abnormal zero point signal
Signal span dropping off/too small
Signal span too small
*) 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).
In case of unjustified reclamation we charge the reclamation handling expenses.
If the problem persists, contact our sales department.
USA, Canada: If the problem continues, contact WIKA or an authorized agent for assistance. If the pressure transducer
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 transducers 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 installa-
tion, test purposes, or cleaning. You can find the Product Return Form on our internet site (www.wika.com).
Operating instructions/Betriebsanleitung, WUD-2x
Downloaded from www.Manualslib.com
Possible cause
Incorrectly wired
Zero point set wrongly
Medium or ambient temperature too high/
too low
Diaphragm is damaged, e.g. through impact,
abrasive/agressive media; corrosion of
diaphragm/pressure connector.
Diaphragm is damaged, e.g. through impact,
abrasive/agressive media; corrosion of
diaphragm/pressure connector
Power supply too high/too low
Mechanical overload through overpressure
manuals search engine
Procedure
Follow pin assignment (see instrument label /
operating instructions)
Adjust zero point correctly (see chapter 8); a
sufficiently accurate current/volt meter should
be used
Control the internal temperature of the instru-
ment within the permissible range; observe
the allowable temperature error (see operating
instructions)
Replace instrument
Contact the manufacturer and replace the
instrument
Correct the power supply in line with the
Operating Instructions
Re-calibrate the instrument *)
GB
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