Mounting and installation
Instruction Manual AquaMaster
12745E/4
27
4.4
Connecting the connection box
The connection cables between the connection box, photometer and external connections
should be long enough so that there is sufficient freedom of movement when carrying out
servicing duties (e.g. in order to fasten the photometer onto the docking station).
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
When a service voltage of between 100
and 240 VAC is present, connect as fol-
lows:
Connect the service voltage to the following
terminals:
Terminals
1
2
3
Cable
P
N
When a service voltage of between 18 and
30 VDC is present, connect as follows:
1.1: The following cables must first be re-
moved from the terminals:
Cable leading to power unit (circle)
Cable coming from power unit (circle)
1.2: Now connect the service voltage to the
following terminals:
Terminals
4
5
6
Cable
24V
GND
Unused cable ends must
be insulated.
2.
Connect the external signals 0/4 .. 20 mA, if
present.
Terminals
40 41 42
43 44 45
Cable
24V 24V
An 1
An 2
-
+
-
+
3.
Connect the Powerbox, if present.
Terminals
34
35
36
37
38
39
Cable
SDA GND SCL GND GND 24V
