Malfunctions, Fault finding list for troubleshooting, Age 32 – Flowserve LRR1-40 TDS Control Unit User Manual
Page 32
32
Malfunctions
Fault finding list for troubleshooting
Equipment does not work - no function
Fault:
LED "Power"
is not illuminated.
Remedy:
Switch on power supply and wire equipment in accordance with the wiring
diagram.
Equipment does not work correctly
Fault:
The connected actual value indicator shows incorrect values.
Remedy:
Dirt deposits on the conductivity electrode. Remove the equipment and
clean the measuring surface.
Fault:
A MIN or MAX limit alarm is given although the actual value (reference
measurement) lies within these limits.
Remedy:
Dirt deposits on the conductivity electrode. Remove the equipment and
clean the measuring surface.
If configured as proportional controller: The equipment works as two-position
(on - off) controller
Fault:
The feedback potentiometer in the continuous blowdown valve is either
defective or not connected.
Remedy:
Wire the equipment in accordance with the wiring diagram and check the
potentiometer.
9