BARTEC BENKE HYGROPHIL H 4230-12 Ex Zone II, Руководство по эксплуатации, Страница: 83 / 112

Maintenance
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Operating Instructions HYGROPHIL® H 4230-12 BA 060207

Put the assembled measuring chamber back in the enclosure and tight-
en the upper mounting nuts.
 Insert the ejector outlet through the enclosure from the bottom and push
it into the lower section of the measuring chamber.
 Then screw on the outlet connection (knurled screw) and thereby press
the ejector outlet right into the lower section of the measuring chamber.
 Restore all hose and cable connections.
6.4 Internal water detector
If the internal water detector ceases to respond, you can carry out a calibra-
tion.
Disassemble the water detector.
 Detach the plug-in connector (detach the knurled nut and remove the
connector)

Loosen the lock nut (A/F 17) and screw the water detector out of the
mount.

Half-fill a plastic hose with water.

Hold the water detector’s sensor up to the unfilled part of the hose. The
LED on the water detector must be off.
 Then hold the water detector’s sensor up to the filled part of the hose.
The LED on the water detector should now light up.

If necessary, use the small screwdriver provided to turn the screw for
setting the sensitivity (on the back of the water detector) clockwise until
the LED on the filled part of the hose lights up.

If the LED on the filled part lights up, turn the sensitivity setting screw
slowly anticlockwise until the LED is off. Then turn the sensitivity setting
screw back clockwise until the LED lights up. Then turn the sensitivity
setting screw clockwise about half a round further.

Following reassembly, test that the water detector works properly by
draining the water from the measuring cell – the LED should be off.
When the unit is switched on, the LED should light up as soon as the
correct level is restored.