6.3.2 Adjusting the capacitive sensors
The capacitive sensors for reporting a shortage of powder in
the powder feeder or an overflow in the wetting cone must be
checked and possibly adjusted.
The sensor has a yellow LED at its cable end to indicate the
switching state and also a countersunk adjustment screw to
adjust its sensitivity.
Materials required:
n
1 small screwdriver
1.
The yellow LED on the sensor is off - the setting is correct
2.
The yellow LED on the sensor is on
ð
Reduce the sensitivity using the adjustment screw (turn anti-
clockwise) until the LED goes out.
3.
The yellow LED on the sensor is on
ð
The setting is correct.
4.
The yellow LED on the sensor is off
ð
Increase the sensitivity using the adjustment screw (turn clock‐
wise) until the LED lights up.
The sensor is checked and adjusted in 2
steps:
With the powder feeder empty (or normal
water flow in the wetting cone)
If the powder feeder is full (or the water of
the wetting cone is overflowing):
Assembly and installation
27
