KROHNE OPTISWITCH 3300C NAMUR EN - Manual (Page 26)

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 WE60 can be interchanged.
If you want to use an oscillator with a different signal output,
you can download the corresponding operating instructions
manual from our homepage under Downloads.
With EEx d instruments, the housing cover must only be
opened if there is no explosive atmosphere.
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 screw driver (Torx size T10
or slot 4)
26 OPTISWITCH 3300 C - with NAMUR output
Maintenance and fault rectification
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-EN
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