NEK
NEK K05/0516
Seite 5
Attention! Incorrect wiring will lead to damage of the unit’s
electronics.
If the unit is installed in a metallic, conductive container, this container must be
connected with the NEK supply potential GND, otherwise it may cause functional
problems by potential differences.
7.2. NPN switching output (NEK-1)
7.3. PNP switching output (NEK-2)
7.4. Relay switching output (NEK-3)
8. Commissioning
The measuring instruments are pre-set and are ready for operation after electrical
connection.
The LED signals the switch state of the level switch.
LED off:
no power supply
LED off with short "ON pulses":
Power supply on / switch state de-activated (dry)
LED on:
Power supply on / switch state activated (wet)
blau/blue :GND
schwarz/black : NPN O.C. max.300 mA
braun/brown : 18-29 V DC
NPN
blau/blue : GND
schwarz/black : PNP O.C. max.300 mA
braun/brown : 18-29 V DC
PNP
blau/blue :GND
grau/grey : Relay out n.o.
braun/brown : 18-29 V DC
Relay
schwarz/black : Relay out common
weiß/white : Relay out n.c.
NO
NC