Flowserve LRR1-40 TDS Control Unit Manual do Utilizador descarregar pdf (Página 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.

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Flowserve LRR1-40 TDS Control Unit Manual do Utilizador Página 32