2187800.09 GB/D/F/E 04/2008
16
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-10, IS-11
2187800.09 GB/D/F/E 04/2008
17
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-10, IS-11
Failure
Possible cause
Procedure
Output signal unchanged after change
in pressure
Mechanical overload through over-
pressure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
No output signal
Cable break
Check connections and cable
Signal span too small
Mechanical overload through over-
pressure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Failure
Possible cause
Procedure
Signal span erratic / incorrect
Working temperature too high/too low Ensure permissible temperatures as per
the Operating Instructions
Signal span erratic
Instrument not grounded
Ground instrument
Violent fluctuations in the process
media pressure
Damping; consult with manufacturer
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Shield the device; shield the cables;
remove the interference source
Signal span dropping off/too small
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector; transmission fluid missing.
Contact the manufacturer and replace
the instrument
Signal span drops off
Seal/Sealing face damaged/conta-
minated, seal mounted incorrectly,
threads crossed
Clean the seal/sealing face, possibly
replace the seal.
Abnormal zero point signal
Working temperature too high/too low Ensure permissible temperatures as per
the Operating Instructions
Abnormal mounting position
Correct the zero point through the
potentiometer, control panel or software
Overload limits exceeded
Ensure permissible overload limits are
observed (see Operating Instructions) *)
9. Maintenance, accessories / 10. Trouble shooting
GB
9. Maintenance, accessories
Accessories
For details about the accessories (e. g. connectors), please refer to WIKA‘s price list, WIKA‘s
product catalog on CD or or contact our sales department.
10. Trouble shooting
Open pressure connections only after the system is without pressure!
WIKA pressure transmitters require no maintenance.
Have repairs performed by the manufacturer only.
Do not insert any pointed or hard objects into the pressure port for cleaning to prevent
damage to the diaphragm of the pressure connection.
Take precautions with regard to remaining media in removed pressure trans-
mitters. Remaining media in the pressure port may be hazardous or
toxic!
Remove the pressure transmitter from service and mark it to prevent it from
being used again accidentally, if it becomes damaged or unsafe for opera-
tion.
Have repairs performed by the manufacturer only.
10. Trouble shooting
GB
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).
Please verify in advance if pressure is being applied (valves/ ball valve etc. open) and if the
right voltage supply and the right type of wiring (2-wire/ 3-wire) has been chosen?
If the problem persists, contact our sales department.
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).
Warning
!
Warning