Failure Possible cause Procedure
No display indication Empty batteries, wrong polarity Test battery and replace, if required
Displayed signal unchanged after
change in pressure
Mechanical overload through over-
pressure
Replace instrument; if failure reoccurs,
consult the manufacturer
Signal span too small
Mechanical overload through over-
pressure
Replace instrument; if failure reoccurs,
consult the manufacturer
Signal span erratic
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Remove the interference source
Signal span erratic Working temperature too high/too low
Ensure permissible temperatures as per
the Operating Instructions
Signal span incorrect Working temperature too high/too low
Ensure permissible temperatures as per
the Operating Instructions
Abnormal zero point signal
Medium or ambient temperature too
high/too low
Control the internal temperature of the
instrument within the permissible range;
observe the allowable temperature error
(see Operating Instructions)
Failure Possible cause Procedure
Abnormal zero point signal Overload limits exceeded
Ensure permissible overload limits are
observed (see Operating Instructions).
Abnormal zero point signal Working temperature too high/too low
Ensure permissible temperatures as per
the Operating Instructions
Signal span dropping off/too small
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector.
Contact the manufacturer and replace
the instrument
9. Trouble shooting
GB
9. 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 sensor diaphragm of the pressure connection.
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
used again accidentally, if it becomes damaged or unsafe for operation.
Have repairs performed by the manufacturer only.
9. Trouble shooting / 10. Storage, disposal
GB
In case of unjustified reclamation we charge the reclamation handling expenses.
Please verify in advance if pressure is being applied (valves/ ball valve etc. open) and if the
right voltage supply has been chosen?
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
may be hazardous or toxic!
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.
Disposal
WIKA reserves the right to alter these technical specifications.
Warning
!
Warning
!
Warning
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