3.4
Electrical connection
Connection diagram
The connection diagram depicted in Fig. 3.10
shows the connections of an instrument
equipped with all the options. The connection
of the various electrodes with the measuring
cables is shown in more detail in Figs. 3.13
to 3.19.
pH
Ref.
11
12
13
47
48
49
57
58
59
51
52
53
54
55
56
PA/
PM
15 V
85
86
S
10-50 V
81
93
82
94
10-50 V
L+
L-
L
N
∼ =
41
42
43
pH
mA
31
32
mA
33
34
ANPH01.CDR
Aux. voltage
output
Digital
input 2
(Chemoclean)
Digital
input 1
(hold)
Signal output 2:
temperature
Signal output 1
pH / redox
Temperature
Electrode
Alarm
(de-energized
contact
position)
Relay 1
(de-energized
contact
position)
Relay 2
(de-energized
contact
position)
Relay 3
(de-energized
contact
position)
Relay 4
(de-energized
contact
position)
Mains
*
optional
*
*
gn
wt
ye
Fig. 3.10
Electrical connection of
Liquisys M CPM 223/253
(all inputs and outputs
connected)
Installation
Liquisys M CPM 223 / 253
12
Hauser
