Maintenance, Accessories; Trouble Shooting; Possible Cause - WIKA S-11 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?
16 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio S-10, S-11
GB
10. Trouble shooting
Failure
No output signal
No/False output signal
Output signal unchanged after change
in pressure
Signal span dropping off/too small
Signal span erratic / incorrect
Abnormal zero point signal
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).
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio S-10, S-11

Possible cause

Procedure
Cable break Check connections and cable
No/incorrect voltage supply or current Adjust the voltage supply to correspond
spike with the Operating Instructions *)
Incorrectly wired (e.g. Connected as Follow pin assignment (see Instrument
2-wire instead of 3-wire system) Label / Operating Instructions)
Mechanical overload through over- Replace instrument; if failure reoccurs,
pressure consult the manufacturer *)
Mechanical overload through over- Replace instrument; if failure reoccurs,
pressure consult the manufacturer *)
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media; Contact the manufacturer and replace
corrosion of diaphragm/pressure the instrument
connector; transmission fluid missing.
Seal/Sealing face damaged/conta-
Clean the seal/sealing face, possibly
minated, seal mounted incorrectly,
replace the seal.
threads crossed
Electromagnetic interference source in Shield the device; shield the cables;
the vicinity, e.g. inverter drive remove the interference source
Ensure permissible temperatures as per
Working temperature too high/too low
the Operating Instructions
Instrument not grounded Ground instrument
Violent fluctuations in the process
Damping; consult with manufacturer
media pressure
Ensure permissible temperatures as per
Working temperature too high/too low
the Operating Instructions
Correct the zero point through the
Abnormal mounting position
potentiometer, control panel or software
Ensure permissible overload limits are
Overload limits exceeded
observed (see Operating Instructions) *)
GB
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