Functional Test; Maintenance, Accessories; Trouble Shooting - WIKA ECO-1 Mode D'emploi

7. Starting, operation / 8. Maintenance, accessories / 9. Trouble shooting

Functional test

The output signal must be proportional to the pressure. If not, this might point to a
damage of the diaphragm. In that case refer to chapter 9 „Troubleshooting".
 Open pressure connections only after the system is without pressure!
 Observe the ambient and working conditions outlined in section 7 „Technical
data".
Warning
Please make sure that the pressure transmitter is only used within the over-

load threshold limit at all times!
When touching the pressure transmitter, keep in mind that the surfaces of
the instrument components might get hot during operation.
Caution

8. 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.

9. 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.
1 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
GB
9. 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
Output signal unchanged after change
in pressure
Signal span dropping off/too small
Signal span too small
Signal span erratic
Abnormal zero point signal
No output signal
No/False output signal
Output signal unchanged after change
in pressure
In case of unjustified reclamation we charge the reclamation handling expenses.
*) Make sure that after assembly the unit is working properly. In case the error continues to exist send in the instrument for
reparation (or replace the unit).
ECO-1 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio ECO-1
Possible cause Procedure
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.
Mechanical overload through over-
Replace instrument
pressure
Violent fluctuations in the process
Damping; consult with manufacturer
media pressure
Ensure permissible overload limits are
Overload limits exceeded observed (see Operating Instructions);
replace instrument
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
Replace instrument
corrosion of diaphragm/pressure
connector.
No/incorrect voltage supply or current Adjust the voltage supply to correspond
spike with the Operating Instructions *)
Cable break Check connections and cable
Incorrectly wired (e.g. Connected as Follow pin assignment (see Instrument
2-wire instead of 3-wire system) Label / Operating Instructions)
Wrong supply voltage or current spike Replace instrument
GB
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