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7 Maintenance and fault rectification
OPTISWITCH 3100 C • Relay (DPDT)
29953-EN-210702
8. Compare the settings of the two electronics modules. Set the
adjustment elements of the new electronics module to the same
setting of the old one.
Information:
Make sure that the housing is not rotated during the electronics ex-
change. Otherwise the plug may be in a different position later.
9. Insert the electronics module carefully. Make sure that the plug is
in the correct position.
10. Screw in and tighten the two holding screws with a screwdriver
(Torx size T10 or Phillips 4)
11. Insert the wire ends into the open terminals according to the wir-
ing plan
12. Press down the opening levers of the terminals, you will hear the
terminal spring closing
13. Check the hold of the wires in the terminals by lightly pulling on
them
14. Check cable gland on tightness. The seal ring must completely
encircle the cable.
15. Screw the housing lid back on
The electronics exchange is now finished.
7.4 How to proceed if a repair is necessary
If it is necessary to repair the instrument, please contact the responsi-
ble Krohne agency.
