WIKA IS-21-F - Manual (Page 11)

2132926.07 GB/D/F/E 03/2010
20 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-2X
2132926.07 GB/D/F/E 03/2010
21 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-2X
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
No/incorrect voltage supply or current
spike
Adjust the voltage supply to correspond
with the Operating Instructions *)
Cable break Check connections and cable
No/False output signal Incorrectly wired
Follow pin assignment (see Instrument
Label / Operating Instructions)
Abnormal output signal Span incorrectly adjusted Use appropriate reference
Abnormal zero point signal Overload limits exceeded
Ensure permissible overload limits are
observed (see Operating Instructions);
correct the zero point through the
potentiometer *)
Failure Possible cause Procedure
Abnormal zero point signal
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector.
Replace instrument
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.
Signal span too small
Mechanical overload through over-
pressure
Re-calibrate the instrument *)
Signal span erratic
Violent fluctuations in the process
media pressure
Damping; consult with manufacturer
9. Maintenance, accessories / 10. Trouble shooting GB
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!
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) has been chosen?
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).
Warning
!
Warning