BARTEC BENKE HYGROPHIL H 4230-12 Ex Zone II, Operating Instructions Manual, Page: 51 / 112

Installation
45
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
3.8 External water detector
You can install an external water detector for the purpose of monitoring the
level in the water tank. The water detector is available as an optional extra.
3.8.1 Electrical connection
 Insert the cable of the external water detector through the third cable
gland from the left and into the unit’s enclosure.

Connect the cable of the external water detector to terminals 5, 6 and 7.
Terminals 4230 5 6 7
Cable
ext. water detector
+
red
S
brown black
3.8.2 Calibration

Remove the water tank from the mount.
 Hold the water detector’s sensor up to the unfilled part of the container.
The green LED on the water detector must be off.

Then hold the water detector’s sensor up to the filled part of the contain-
er. The LED on the water detector should now light up.
 If necessary, use the small screwdriver supplied to turn the screw for
setting the sensitivity until the LED on the filled part of the container
lights up and that on the unfilled part does not light up.
LED
Sensitivity setting Connecting cable