Liquisys M CPM223/253
Wiring
Hauser
23
4.2
Electrical connection with Memosens functionality
4.2.1
Connection diagram
The wiring diagram depicted in Fig. 21 shows the connections of an instrument equipped with all
the options. Connecting the sensors is explained in more detail in the "Measuring cables and sensor
connection" section.
!
Note!
• The device is approved for protection class II and is generally operated without a protective earth
connection.
• Do not connect the sensor screen at the transmitter.
C07-CPM2x3xx-04-06-00-xx-002.esp
Fig. 21:
Transmitter electrical connection with Memosens technology
A
B
C
D
E
F
G
Screen
Sensor
Signal output 1 pH/redox
Signal output 2 temperature, pH/redox or controller
Binary input 1 (Hold)
Binary input 2 (Chemoclean)
Auxiliary voltage output
H
I
J
K
L
M
N
Alarm (contact position currentless)
Relay 1 (contact position currentless)
Relay 2 (contact position currentless)
Relay 3 (contact position currentless)
Relay 4 (contact position currentless)
Current input 4 ... 20 mA
Power supply
87
88
96
47
48
49
57
58
59
51
52
53
54
55
56
15 V
85
86
10-50 V
81
93
82
94
10-50 V
L+
L-
L1
N
23 +
24 -
mA
~ =
41
42
43
pH
mA
31
32
mA
33
34
A
B
C
D
E
F
G
H
J
K
L
M
N
S
97
I
A
B
BN
WH
GN
YE
