SEN-86../87..
SEN-86../87.. K04/0618
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8. Maintenance
The pressure sensors described in this manual are maintenance free! They do
not contain any components which may be repaired or exchanged locally.
Repairs are not possible other than in our factory.
9. Trouble
shouting
Trouble
Possible reason
What's to do
No signal
no supply voltage
broken wire
Check your power supply and
wiring. lf necessary replace
defective parts
Sensor has been wired faulty Check the wiring according to
the sketches, adjust wiring if
necessary.
No pressure
Check your tubing , valves
open?
Defective electronics
caused by to high supply
voltage or by
external voltage
Return sensor to us for repair
Unchanged signal by
Pressure port is clocked
Clean the pressure port
changing pressure
Defective electronic caused
by to high supply voltage or
by external voltage
Return sensor to us for repair
Pressure sensor over pres-
surized
Return sensor to us for repair
To high, even on changing
pressure unchanged signal
Defective electronics caused
by to high supply voltage or
by external voltage
Return sensor to us for repair
Span of signal to small
Supply voltage to low
Resistance to high
Adjust supply voltage Adhere
to max. allowable resistance
Zero signal to high
Mechanical overburden
Return to us
for repair
Output signal non
linear
Mechanical overburden
Recalibrate sensor resp. re-
turn to us
for repair
