SICK PBT Mode D'emploi page 29

Operating Instructions
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
No output signal
Abnormal zero point signal
Abnormal zero point signal
Output signal unchanged after change in
pressure
Signal span too small
Signal span erratic
Signal span erratic / incorrect
Signal span dropping off/too small
If the problem persists, contact our sales department.
Return shipments / non-risk declaration form
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 completed and signed-off non-risk decla-
ration form has been submitted and fully filled-in. This non-risk declaration 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 non-risk declaration form on our internet site (www.sick.com).
8013153/1B2T/2021-03-17
10. Trouble shooting
Possible cause
Cable break
Overload limits exceeded
Working temperature too high/too low
Mechanical overload through overpres-
sure
Mechanical overload through overpres-
sure
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Working temperature too high/too low
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media; corro-
sion of diaphragm/pressure connector;
transmission fluid missing.
© SICK AG • Germany • All rights reserved
Procedure
Check connections and cable
Ensure permissible overload limits are
observed (see Operating Instructions)
Ensure permissible temperatures as per
the Operating Instructions
Replace instrument; if failure reoccurs,
consult the manufacturer
Replace instrument; if failure reoccurs,
consult the manufacturer
Shield the device; shield the cables;
remove the interference source.
Ensure permissible temperatures as per
the Operating Instructions
Contact the manufacturer and replace the
instrument
PBT
GB
29