5
C
onnect to power supply
5
.
1
P
repare the connection
A
lways keep in mind the following safety instructions
:
l
C
onnect only in the complete absence of line voltage
Y
ou can
fi
nd the electrical connection of
EL
4
in the operating
instructions manual of the corresponding signal conditioning instru
-
ment
.
Y
ou can
fi
nd suitable signal conditioning instruments in chapter
"
T
echnical data
"
.
T
he instrument is connected with standard two
-
wire cable without
screen
.
I
f electromagnetic interference is expected which is above the
test values of
EN
61326
for industrial areas
,
screened cable should be
used
.
U
se cable with round cross
-
section
.
A
cable outer diameter of
5
…
9
mm
(
0
.
2
…
0
.
35
in
)
ensures the seal e
ff
ect of the cable gland
.
I
f you are
using cable with a di
ff
erent diameter or cross
-
section
,
exchange the
seal or use a suitable cable gland
.
5
.
2
W
iring plan
Y
ou can
fi
nd the electrical connection of
EL
4
in the operating
instructions manual of the corresponding signal conditioning instru
-
ment
.
L
ine monitoring
T
o realize a line monitoring
,
a resistor of
220
k
Ω
must be integrated in
the connection housing of the probe between terminal
1
and
2
.
W
hen a fault message is generated
,
the switching output is
simultaneously activated
.
I
f a fault message is not wanted
,
a bridge must be provided on the
signal conditioning instrument instead of the resistor in the connection
housing of the probe
.
T
he line monitoring is thus deactivated and the fault message
rendered invalid
.
T
ake note of the operating instructions manual of the signal
conditioning instrument
.
W
ith
E
x versions
,
this
220
k
Ω
resistor is already integrated ex factory in
the connection housing of the probe
.
T
he
E
x measuring system
(
max
.
and ground connection cable of the probe to the signal conditioning
instrument
)
is generally monitored for line break
.
l
T
erminal
1
=
longest rod
(
ground
)
N
ote safety instructions
S
elect power supply
S
electing connection
cable
C
onnection compart
-
ment
12
C
onductive probe
EL
4
5
C
onnect to power supply
32653
-
EN
-
090415
