Tecsis P3308 Instrucciones De Uso página 23

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
No/False output signal
No output signal
Signal span too small
Signal span too small
Signal span dropping off/too small
Signal span drops off
Signal span erratic
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).
Betriebsanleitung/Operating instructions/Mode d'emploi/Instrucciones de servicio
Possible cause
Mechanical overload through overpres-
sure
Wrong supply voltage or current spike
Incorrectly wired (e.g. Connected as
2-wire instead of 3-wire system)
No/incorrect voltage supply or current
spike
Cable break
Power supply too high/too low
Mechanical overload through overpres-
sure
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector; transmission fluid missing.
Moisture present (e.g. at the cable tail) Install the cable correctly
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Instrument not grounded
Strong fluctuations in the power supply
Violent fluctuations in the process
media pressure
Procedure
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Replace instrument
Follow pin assignment (see Instrument
Label / Operating Instructions)
Adjust the voltage supply to correspond
with the Operating Instructions *)
Check connections and cable
Correct the power supply in line with
the Operating Instructions
Replace instrument; if failure reoccurs,
consult the manufacturer *)
Contact the manufacturer and replace
the instrument
Shield the device; shield the cables;
remove the interference source.
Ground instrument
Stabilise the power supply; smooth it
(i.e.; remove interferences)
Damping; consult with manufacturer
GB
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