BD_BE_BF_BSP 709 a
Betriebsanleitung/Operating instructions/Mode d'emploi/Instrucciones de servicio
Failure
Possible cause
Procedure
Output signal unchanged after change
in pressure
Mechanical overload through overpres-
sure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Wrong supply voltage or current spike
Replace instrument
No/False output signal
Incorrectly wired (e.g. Connected as
-wire instead of 3-wire system)
Follow pin assignment (see Instrument
Label / Operating Instructions)
No output signal
No/incorrect voltage supply or current
spike
Adjust the voltage supply to correspond
with the Operating Instructions *)
Cable break
Check connections and cable
Signal span too small
Power supply too high/too low
Correct the power supply in line with
the Operating Instructions
Signal span too small
Mechanical overload through overpres-
sure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Signal span drops off
Moisture present (e.g. at the cable tail) Install the cable correctly
Signal span erratic
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Shield the device; shield the cables;
remove the interference source.
Instrument not grounded
Ground instrument
Strong fluctuations in the power supply Stabilise the power supply; smooth it
(i.e.; remove interferences)
Violent fluctuations in the process
media pressure
Damping; consult with manufacturer
9. Trouble shooting
GB
In case of unjustified reclamation we charge the reclamation handling expenses.
*) Make sure that after the assembly the unit is working properly. In case the error continues to exist send in the instrument for
reparation (or replace the unit).
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 (-wire / 3-wire) has been chosen?
