BA-40400-02-V14 | 15
Operating instructions
4.9.1 Installation example with C 7700
Sensors connection
Disinfection:
Potentialstatic electrode
pH value:
Single-rod measuring cell
Redox:
Single-rod measuring cell
DO4 DO3 DO2 DO1
DO7
DO6
DO5
DO0
C7700
2
3
1
11
10
12
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
36
37
38
PE
N
L
33
34
92
93
94
87
88
89
90
91
86
-
+
81
82
83
84
85
-
-
+
+
56
57
58
59
60
-
+
51A
52A
53
54
55
61
51B
52B
-
-
+
+
-
+
71
72
73
74
75
76
77
78
39
40
41
43
44
45
46
42
35
95
96
A
B
A
B
pH value dosing pump
PC interface
Temperature
pH value
Redox
90 - 264 V AC
Input module 5-fold
CPR
T(A
TE) 5-fold
Po
wer supply unit
Output components
Digital inputs
20 mA po
wer outputs
Main board
Disinfection (potentiostat):
Reference electrode
Measuring electrode (gold)
Counter electrode (steel)
Measuring water shortage
Alarm relay
CLOSED
OPEN
Input module
3-fold
C(P) 20 mA (A
TE)
RS 485
Controller connection
Disinfection:
C 7700 (servo motor with potentiometer)
pH value:
Solenoid-driven dosing pumps
(Pulse frequency optocoupler)
Other:
Connection of PC interface RS 485
