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Description of the electrical connections
Terminal block identification
IN = input, OUT = output
No.
Terminal
Type Function
Note
-
PE
IN
Mains-Protective earth (5 x)
-
-
N
L
IN
Mains, N = Neutral
Mains, L = Live
Mains-input 230 - 240 V AC
(or 24V AC)
-
-
n
l
OUT
Neutral switched (8 x)
Mains switched (8 x)
Mains voltage, max. 4 A
1
2
Flush
OUT External flush valve
Volt-free relay output
max. load 240 V AC, 4 A
3
4
5
LV1
OUT
Limit value output 1 - Normally closed
Limit value output 1 - Normally open
Limit value output 1 - Common
Residual hardness
Volt-free relay output
max. load 240 V AC, 4 A
6
7
8
LV2
OUT
Limit value output 1 - Normally closed
Limit value output 1 - Normally open
Limit value output 1 - Common
Chlorine
Volt-free relay output
max. load 240 V AC, 4 A
9
10
11
Measuring point
1/2
OUT
Measuring point 1 - Normally closed
Measuring point 2 - Normally open
Measuring point switch-over -Common
Volt-free relay output
max. load 240 V AC, 4 A
12
13
AUX
OUT Universal output
Volt-free relay output
max. load 240 V AC, 4 A
14
15
16
Alarm
OUT
Fault message - Normally closed
Fault message - Normally open
Fault message - Common
Volt-free relay output
max. load 240 V AC, 4 A
17
18
19
Maintenance
OUT
Maintenance message - Normally closed
Maintenance message - Normally open
Maintenance message - Common
Volt-free relay output
max. load 240 V AC, 4 A
20
21
Start
2
IN
External analysis start
Common earth for inputs
Only for volt-free normally open
contact!
22
23
Stop
2
IN
External analysis stop
Common earth for inputs
Only for volt-free normally open/
normally closed contact!
24
25
IN1
2
IN
External measuring point switch
Common earth for inputs
Only for volt-free normally open/
normally closed contact!
26
27
IN2
2
IN
Universal input 2 (Water meter)
Common earth for inputs
Only for volt-free normally open
contact!
28
29
OUT
OUT 0/4 - 20 mA or serial interface
Potential output !
28 = 0/4 - 20 mA, 29 =
2
