Trouble Shooting; Storage, Disposal - WIKA DG-10-S Betriebsanleitung

9. Trouble shooting

. Trouble shooting
Open pressure connections only after the system is without pressure!
Warning
Take precautions with regard to remaining media in removed digital mano

!
meter. Remaining media in the pressure port may be hazardous or toxic!
Remove the digital gauge from service and mark it to prevent it from being

Warning
used again accidentally, if it becomes damaged or unsafe for operation.
 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 sensor 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 has been chosen?
Failure Possible cause
No display indication Empty batteries, wrong polarity
Displayed signal unchanged after Mechanical overload through over-
change in pressure pressure
Mechanical overload through over-
Signal span too small
pressure
Electromagnetic interference source in
Signal span erratic
the vicinity, e.g. inverter drive
Signal span erratic Working temperature too high/too low
Signal span incorrect Working temperature too high/too low
Medium or ambient temperature too
Abnormal zero point signal
high/too low
16 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
GB
Procedure
Test battery and replace, if required
Replace instrument; if failure reoccurs,
consult the manufacturer
Replace instrument; if failure reoccurs,
consult the manufacturer
Remove the interference source
Ensure permissible temperatures as per
the Operating Instructions
Ensure permissible temperatures as per
the Operating Instructions
Control the internal temperature of the
instrument within the permissible range;
observe the allowable temperature error
(see Operating Instructions)
DG-10
9. Trouble shooting / 10. Storage, disposal
Failure Possible cause
Abnormal zero point signal Overload limits exceeded
Abnormal zero point signal Working temperature too high/too low
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
Signal span dropping off/too small
corrosion of diaphragm/pressure
connector.
In case of unjustified reclamation we charge the reclamation handling expenses.
If the problem persists, contact our sales department.
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).

10. Storage, disposal

When storing or disposing of the digital gauge, take precautions with regard
!
to remaining media in removed digital gauge. We recommend cleaning the
digital gauge properly and carefully. Remaining media in the pressure port
Warning
may be hazardous or toxic!
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/Mode d'emploi/Instrucciones de servicio DG-10
GB
Procedure
Ensure permissible overload limits are
observed (see Operating Instructions).
Ensure permissible temperatures as per
the Operating Instructions
Contact the manufacturer and replace
the instrument
17