Siemens SITRANS LVL100 Operating Instructions Manual page 16

Connecting to power supply
Contactless electronic
switch
16
1
Fig. 7: Connection, valve plug DIN 43650
1 Pressure screw
Pressure disc
2
Seal ring
3
4 Fixing screw
Seal washer
5
6 Plug housing
Plug insert
7
Profile seal
8
9 Control lamp
10 SITRANS LVL100
We recommend connecting SITRANS LVL100 in such a way
that the switching circuit is open when there is a level signal,
line break or failure (safe condition).
Warning:
The instrument must not be operated without an intermediately
connected load, because the electronics would be destroyed if
connected directly to the mains. It is not suitable for connection
to low voltage PLC inputs.
For direct control of relays, contactors, magnet valves, warning
lights, horns etc.
Domestic current is temporarily lowered below 1 mA after
switching off the load so that contactors, whose holding current
is lower than the constant domestic current of the electronics
(3 mA), are reliably switched off.
SITRANS LVL100 l CONTACTLESS ELECTRONIC SWITCH
2 3
10
4
5
6
7
8
9