Installation pH 170
113
Connecting a InPro
®
4250 (high-resistance)
12
11
10 9
8
g
ra
y
C
o
p
p
e
r a
n
d
y
e
llo
w
/g
re
e
n
tr
a
n
s
p
a
re
n
t
g
re
e
n
white
c
b
a
L1
N
RS
Option
Netz
Mains
Option
K2
K1
X1
13 12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
Dip switch
y
e
llo
w
/g
re
en
C
o
pp
e
r a
nd
tr
a
n
s
par
e
n
t
g
re
e
n
g
ra
y
w
h
ite
ON
VP6-ST
b
lu
e
=
u
n
u
se
d
Terminal
Terminal assignment
X1
X2
1
A (RS 485)
REC 1 +
2
B (RS 485)
REC 1 –
3
GND (RS 485)
REC 2 +
4
Sens-Check
REC 2 –
5
Sens-Check
–
6
Relay 1
–
7
Relay 1
–
8
Relay 2
white
9
Relay 2
gray
10
N (mains)
green
11
L1 (mains)
copper and yellow/green
12
–
transparent
13
–
–
Unused wires must not jut into the housing. Otherwise, malfunctions
can occur. This especially applies to the ground wire of the mains
cable. Cut off unused wires in the housing as close to the armored
thread joint as possible.
The Dip switch must
be in the
“
ON
“
position.
