Tecsis P3297 - Faults and Troubleshooting

38 tecsis Operating Instructions - Pressure sensor P3297
BD_BE_BF_BSP 708 c
GB
7. Maintenance and cleaning / 8. Faults
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?
Faults Causes Measures
No output signal Cable break Check connections and cable
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
Output signal unchanged after change
in pressure
Mechanical overload through overpres-
sure
Replace instrument; if failure reoccurs,
consult the manufacturer
Signal span too small
Mechanical overload through overpres-
sure
Replace instrument; if failure reoccurs,
consult the manufacturer
Signal span erratic
Electromagnetic interference source in
the vicinity, e.g. inverter drive
Shield the device; shield the cables;
remove the interference source.
Signal span erratic / incorrect 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; transmission fluid missing.
Contact the manufacturer and replace
the instrument
If complaint is unjustified, we will charge you the complaint processing fees
For information on returning the pressure sensor see chapter "9.2 Return".
8. Faults
Open pressure connections only after the system is without pressure!