Possible Cause; Storage, Disposal - WIKA F-20 Betriebsanleitung

10. Trouble shooting
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

No/incorrect voltage supply or current
No output signal
spike
Cable break
Incorrectly wired (e.g. Connected as
No/False output signal
2-wire instead of 3-wire system)
Output signal unchanged after change Mechanical overload through over-
in pressure pressure
Wrong supply voltage or current spike
Abnormal output signal Span incorrectly adjusted
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-
minated, seal mounted incorrectly,
threads crossed
Moisture present (e.g. at the cable tail) Install the cable correctly
Power supply too high/too low
Mechanical overload through over-
pressure
Electromagnetic interference source in
Signal span erratic
the vicinity, e.g. inverter drive
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
Abnormal zero point signal
corrosion of diaphragm/pressure
connector.
Zero point signal unstable/ too low/high Moisture present (e.g. at the cable tail) Install the cable correctly
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).
16 WIKA Operating instructions / Betriebsanleitung
GB
Procedure
Adjust the voltage supply to correspond
with the Operating Instructions *)
Check connections and cable
Follow pin assignment (see Instrument
Label / Operating Instructions)
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Replace instrument
Use appropriate reference
Contact the manufacturer and replace
the instrument
Clean the seal/sealing face, possibly
replace the seal.
Correct the power supply in line with
the Operating Instructions
Re-calibrate the instrument *)
Shield the device; shield the cables;
remove the interference source.
Replace instrument
F-20, F-21
10. Trouble shooting / 11. Storage, disposal
If the problem persists, contact our sales department.
USA, Canada
If the problem continues, contact WIKA or an authorized agent for assistance. If the pres-
sure 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
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).

11. Storage, disposal

When storing or disposing of the pressure transmitter, take precautions with
!
regard to remaining media in removed pressure transmitters. We recom-
mend cleaning the transmitter properly and carefully. Remaining media in
Warning
the pressure port may be hazardous or toxic!
Storage
Mount the protection cap when storing the pressure transmitter in order to prevent any
damage to the diaphragm (F-21).
Disposal
Dispose of instrument components and packaging materials in accordance with the
respective waste treatment and disposal regulations of the region or country to which
the instrument is supplied.
WIKA reserves the right to alter these technical specifications.
WIKA Operating instructions / Betriebsanleitung
media.
F-20, F-21
GB
17