Instruction Manual

l Wrong characteristics selected
à Set the correct characteristics on the characteristics
reversal switch (overfill protection; dry run protection).
Wiring should be carried out according to the quiescent
current principle.
? Signal lamp flashes yellow
l Fault in the electronics
à Exchange the electronics
? Signal lamp flashes yellow
l instrument defective
à Exchange instrument or return instrument for repair
7.3 Exchange the electronics
In general, all oscillators of series VB60 can be interchanged. If
you want to use an oscillator with a different signal output, you
can download the corresponding operating instructions man-
ual from our homepage under Downloads.
Proceed as follows:
1 Switch off power supply
2 Unscrew the housing cover
3 Lift the opening levers of the terminals with a screwdriver
4 Pull the connection cables out of the terminals
5 Loosen the two screws with a Phillips screwdriver (size 1)
20 OPTISWITCH 3000 C - with NAMUR output
Maintenance and fault rectification
31355-EN-060830