Calibration Of Sensor And Liqtec - Grundfos LiqTec Montage- Und Betriebsanleitung

7. High liquid temperature indicator light
Red light indicates too high liquid temperature
(130 °C ± 5 °C).
The alarm relay is activated.
8. Supply voltage
9. Dry-running indicator light
Green light indicates OK (liquid in pump).
Red light indicates dry running (no liquid in
pump).
The alarm relay is activated.
10. Alarm/Run relay output
11. Auto/Man
Changeover between automatic and manual
restarting.
The default setting is Man.
Changeover is carried out by means of a small
screwdriver.
When Auto has been selected, the alarm
indication will automatically be reset 10 to 20
seconds after liquid detection.
12. Restart
Press the button to restart the pump. The button
has no influence on the PTC monitoring.

5.1 Calibration of sensor and LiqTec

Step Action
Check if the sensor is correctly connected to LiqTec. See
1
page 148.
Before fitting the sensor in the pump, submerge the
sensor into stagnant water. Any kind of container with
2 water can be used.
It is important that the water is stagnant as the calibration
will be misleading if the sensor is cooled by flowing water.
Keep the buttons, pos. 6 and 12, pressed for
3
approximately 20 seconds.
When the green indicator lights, pos. 3 and 9, are
4
permanently on, stop pressing the buttons, pos. 6 and 12.
8
Result
All red indicator lights, except pos. 7,
start flashing.
The calibration is completed.