Trouble Shooting - WIKA IS-20-S Mode D'emploi

9. Maintenance, accessories / 10. Trouble shooting
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) has been chosen?
Failure Possible cause
Output signal unchanged after change Mechanical overload through over-
in pressure pressure
No/incorrect voltage supply or current
No output signal
spike
Cable break
No/False output signal Incorrectly wired
Abnormal output signal Span incorrectly adjusted
Abnormal zero point signal Overload limits exceeded
20 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
GB
Procedure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Adjust the voltage supply to correspond
with the Operating Instructions *)
Check connections and cable
Follow pin assignment (see Instrument
Label / Operating Instructions)
Use appropriate reference
Ensure permissible overload limits are
observed (see Operating Instructions);
correct the zero point through the
potentiometer *)
IS-2X
10. Trouble shooting
Failure Possible cause
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
Abnormal zero point signal
corrosion of diaphragm/pressure
connector.
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.
Mechanical overload through over-
Signal span too small
pressure
Violent fluctuations in the process
Signal span erratic
media pressure
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 pressure 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).
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
GB
Procedure
Replace instrument
Contact the manufacturer and replace
the instrument
Clean the seal/sealing face, possibly
replace the seal.
Re-calibrate the instrument *)
Damping; consult with manufacturer
21
IS-2X