
Instruction Manual AquaScat S
Electrical installation
38
13798E/3
5.2.4
Customer connections on the Conn-R junction box
Figure 13: Customer connections on the Conn-R junction box
Name
Conn-R terminals
Description
Ground
10
Connection of the cable shielding and
housing to the ground potential.
If the probe housing is already con-
nected to earth through the installation,
then this connection can be left open.
24 V power supply
11 24 V
12 GND
24 V ± 10%
RS-485
13 A
14 B
Not used
Current output
15 +
16 -
The minus pole is connected to GND. Max.
600 Ω burden
Relay 1
17 NC
18 NO
19 Commun
Max. 230 V / 4 A
When using voltages above a low-
voltage level, ensure that no bare wires or
leads can be touched during installation.
Relay 2
20 NC
21 NO
22 Commun
Max. 230 V / 4 A
When using voltages above a low-
voltage level, ensure that no bare wires or
leads can be touched during installation.