Possible Cause - Tecsis P3290 Betriebsanleitung

10. 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
No output signal
No/False output signal
Output signal unchanged after change
in pressure
Signal span dropping off/too small
Signal span erratic / incorrect
Abnormal zero point signal
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Betriebsanleitung/Operating instructions/Mode d'emploi/Instrucciones de servicio
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Possible cause

Cable break
No/incorrect voltage supply or current
spike
Incorrectly wired (e.g. Connected as
2-wire instead of 3-wire system)
Mechanical overload through
overpressure
Mechanical overload through
overpressure
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector; transmission fluid missing.
Seal/Sealing face damaged/conta-
minated, seal mounted incorrectly,
threads crossed
Electromagnetic interference source
in the vicinity, e.g. inverter drive
Working temperature too high/too low
Instrument not grounded
Violent fluctuations in the process
media pressure
Working temperature too high/too low
Abnormal mounting position
Overload limits exceeded
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Procedure
Check connections and cable
Adjust the voltage supply to correspond
with the Operating Instructions
Follow pin assignment (see Instrument
Label / Operating Instructions)
Replace instrument; if failure reoccurs,
consult the manufacturer
Replace instrument; if failure reoccurs,
consult the manufacturer
Contact the manufacturer and replace
the instrument
Clean the seal/sealing face, possibly
replace the seal.
Shield the device; shield the cables;
remove the interference source
Ensure permissible temperatures as per
the Operating Instructions
Ground instrument
Damping; consult with manufacturer
Ensure permissible temperatures as per
the Operating Instructions
Correct the zero point through the poten-
tiometer, control panel or software
Ensure permissible overload limits are
observed (see Operating Instructions)
GB
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