6
d
e
f
Fig. 8
d
e
f
Fig. 9
Electrical Connection
- continued -
Schematic representations of arrangements
d
d
g
e
f
f
Fig. 10
Fig. 11
e
e
d
Level electrode NRG ...-50
e
Level switch NRS -50
Key
f
Safety circuit
g
Level switch NRS -50 for low-level pre-alarm