Pneusej Venga 400, Руководство по эксплуатации

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Setting fan speed sensor
Set the fan speed sensor in case that:
- device don’t show any fan speed,
- device shows lower fan speed values as actual.
Groove on fan shaft generates impulses for the sensor. Normally, there are two impulses for
one rotation.
Adjusting the fan speed sensor
➢
Lightly loose the nut on sensor.
➢
Slowly rotate fan shaft with hand and screw the sensor so it touches the shaft. Sensor
have to touch the shaft and can’t fit into the groove. Screws on the pulley that are on the
same part of the shaft as grooves, will help you.
➢
Screw out the sensor by approx. 1,5 mm.
While setting the sensor, rotate with shaft carefully. Sensor can be damaged
when you screw it wrongly and rotate shaft.
Never start the fan when you are not sure if sensor is set correctly. You can
damage the sensor.
➢
Check, if the shaft rotates without scratching the sensor. Carefully rotate fan by hand.
Shaft should not touch the sensor and it should generate two pulses per rotation. The
groove gives a switching pulse when the sensor passes, the diode on the sensor flashes.
➢
Screw the nut on sensor.