Maintenance, Accessories; Trouble Shooting - WIKA IS-10 Betriebsanleitung

9. Maintenance, accessories / 10. Trouble shooting

9. Maintenance, accessories

 WIKA pressure transmitters require no maintenance.
 Have repairs performed by the manufacturer only.
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!
Warning
 Take precautions with regard to remaining media in removed pressure trans-
!
mitters. Remaining media in the pressure port may be hazardous or
toxic!
Warning
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.

Do not insert any pointed or hard objects into the pressure port for cleaning to prevent
damage to the diaphragm of the pressure connection.
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?
Failure Possible cause
Output signal unchanged after change Mechanical overload through over-
in pressure pressure
No output signal Cable break
Mechanical overload through over-
Signal span too small
pressure
16 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-10, IS-11
GB
Procedure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Check connections and cable
Replace instrument; if failure reoccurs,
consult the manufacturer *)
10. Trouble shooting
Failure Possible cause
Signal span erratic / incorrect Working temperature too high/too low
Signal span erratic Instrument not grounded
Violent fluctuations in the process
media pressure
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
Signal span dropping off/too small
corrosion of diaphragm/pressure
connector; transmission fluid missing.
Seal/Sealing face damaged/conta-
Signal span drops off minated, seal mounted incorrectly,
threads crossed
Abnormal zero point signal Working temperature too high/too low
Abnormal mounting position
Overload limits exceeded
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.
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).
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-10, IS-11
GB
Procedure
Ensure permissible temperatures as per
the Operating Instructions
Ground instrument
Damping; consult with manufacturer
Shield the device; shield the cables;
remove the interference source
Contact the manufacturer and replace
the instrument
Clean the seal/sealing face, possibly
replace the seal.
Ensure permissible temperatures as per
the Operating Instructions
Correct the zero point through the
potentiometer, control panel or software
Ensure permissible overload limits are
observed (see Operating Instructions) *)
17