Operating Instructions
Level measurement
CleverLevel
®
LBFS
Point level detection
7. Electrical connection
9 A voltage supply of 12 V to 30 V DC is provided.
f
Switch off supply voltage.
f
Connect sensor in accordance with the pin
assignment.
Terminal assignment
1
2
Housing dimensions avail-
able only for a plug con-
nector in stainless steel
Output
type
Equivalent circuit Function M12-A
4-pin
Cable outlet
PNP
SW1 (NC)
GND(0V)
+Vs
SW1 (NO)
+ Vs 1 brown
SW1 (NO) 4 black
SW1 (NC) 2 white
GND (0 V) 3 blue
NPN
SW1 (NC)
GND(0V)
+Vs
SW1 (NO)
+ Vs 1 brown
SW1 (NO) 4 black
SW1 (NC) 2 white
GND (0 V) 3 blue
8. Electrical connection in explosion hazard areas
Depending on the variant, the LBFS is approved for most explosion hazard areas.
DANGER
Risk of fatal accident due to a wrongly connected sensor
f
In explosive gas atmospheres of zone 0 or 1, use Baumer isolation barriers or Zener barriers.
f
In explosive dust atmospheres, use insulated cable to IP67.
f
Allow only persons trained in explosion protection to perform the installation.
8.1 Explosive gas atmospheres zone 0 and 1
The LBFS can be used in explosion hazard areas of zone 0 or zone 1. Sensors with PNP can use Baumer
isolation barriers which are easy to install. Sensors with NPN must use Zener barriers.
Approval for LBFS-1xxxx.x: ATEX II 1G Ex ia IIC T4/T5
Approval for LBFS-4xxxx.x: ATEX II 1G Ex ia IIC T4/T5 and ATEX II 1D Ex ta IIIC T100 °C Da
www.baumer.com
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