KROHNE OPTISWITCH 3300C NAMUR EN - Manual (Page 19)

1 2
+
+
-
-
Fig. 11: Wiring plan, single chamber housing
External simulation key
In addition to the test key on the oscillator, you can connect an
external key to start the test procedure. Connect the key
according to the following wiring plan. In shipping condition,
terminals 3 and 4 are bridged.
For additional information see "Recurring function test".
+ -
+ -
1 2 3 4
3
2
1
Fig. 12: Wiring plan - External simulation key
1 NAMUR amplifier
2 Bridge
3 External simulation key
OPTISWITCH 3300 C - with NAMUR output 19
Connecting to voltage supply
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-EN
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