Flowserve NRGS15-1 Manual do Utilizador descarregar pdf (Página 23)

Commissioning – continued –

Check switching functions - continued -

Electrode rod3 = timed pump control (fill control)

Electrode rod3 emerges Relay3 is energized, pump ON

LED3

illuminated

Electrode rod3 enters the

liquid

Relay3 is de-energized after a preset time delay

(0–30 sec.) = pump OFF

LED3 off

Relay 3 is de-energized too early or too late: Increase or decrease time delay with the aid of the

potentiometer and let electrode tip 3 emerge or enter the liquid again. Repeat the process until

you have found the correct switchpoint for the pump. If 30sec. time delay is not enough for filling

the boiler, please select the operation mode "on-off pump control".

Electrode rod3 = on-off pump control (fill control)

Set potentiometer for time delay to 0 sec.

Electrode rods2 and 3

exposed

Relay3 is energized, pump ON

LEDs2 and 3

illuminated

Electrode rod2 enters the

liquid

LED2 off

Electrode rod3 enters the

liquid

Relay3 is de-energized = pump OFF LED3 off

Electrode rods2 and 3 = on-off pump control (discharge control)

Set potentiometer for time delay to 0 sec.

Electrode rods2 and 3

submerged

Relay3 is energized, pump ON

LED2 off and

LED3

illuminated

Electrode rod3 emerges LED3 off

Electrode rod2 emerges Relay3 is de-energized = pump OFF

LED2

illuminated

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Flowserve NRGS15-1 Manual do Utilizador Página 23