Endress+Hauser Liquisys M CPM223 - Electrical Connection With Memosens; Connection Diagram With Memosens

Electrical connection Liquisys M CPM223/253
24 Endress+Hauser
4.3 Electrical connection with Memosens functionality
4.3.1 Connection diagram
The wiring diagram depicted in  å 19 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.
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. 19: Transmitter electrical connection with Memosens technology
A
B
C
D
E
F
G
Screen
Sensor
Signal output 1 pH/ORP
Signal output 2 temperature, pH/ORP 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