1
4
5
6
7
8
9
10
2
3
F
ig
.
7
:
C
onnection
,
valve plug
DIN
43650
1
P
ressure screw
2
P
ressure disc
3
S
eal ring
4
F
ixing screw
5
S
eal washer
6
P
lug housing
7
P
lug insert
8
P
ro
fi
le seal
9
C
ontrol lamp
10
SITRANS LVL
100
W
e recommend connecting
SITRANS LVL
100
in such a way
that the switching circuit is open when there is a level signal
,
line break or failure
(
safe condition
).
W
arning
:
T
he instrument must not be operated without an intermediately
connected load
,
because the electronics would be destroyed if
connected directly to the mains
.
I
t is not suitable for connection
to low voltage
PLC
inputs
.
F
or direct control of relays
,
contactors
,
magnet valves
,
warning
lights
,
horns etc
.
D
omestic current is temporarily lowered below
1
m
A
after
switching o
ff
the load so that contactors
,
whose holding current
is lower than the constant domestic current of the electronics
(
3
m
A
),
are reliably switched o
ff
.
C
ontactless electronic
switch
16
SITRANS LVL
100
l
CONTACTLESS ELECTRONIC SWITCH
C
onnecting to power supply
33843
-
EN
-
080421
