Flowserve NRS 2-5 - Manual (Page 12)

12
Fault: The level switch raises an alarm during normal operation.
Remedy: Check whether the green LED is illuminated. If not, check whether the
mains voltage is applied.
Fault: The yellow LED is illuminated.
Remedy: The level electrode is defective. Replace the equipment.
Fault: The yellow LED is illuminated.
Remedy: Check whether the connecting line to the electrode is interrupted.
If faults occur that are not listed above, please contact our subsidiary or agency in
your country.
Annex
Warning
The terminal strip of the NRS 2-5 is live during operation. This presents the
danger of electric shock.
Cut off power supply before inserting or removing the 19" slide-in unit and
before undertaking any installation or maintenance work.
Fault finding list
4
1
2