SmartBox
®
4 LAN / SmartBox
®
4 LAN PRO
6 / 28
part no. 28 410 57 a
ELECTRIC CONNECTION
Connection line between display unit and probe
Voltage
probe supply 20 V DC
Connection
probe connection cable
+
–
SmartBox 4 LAN
probe - terminals
1
2
Tank 1 Fig.
SmartBox 4
LAN PRO
probe 1 - terminals
3
4
Tank 1 Fig
probe 2 - terminals
5
6
Tank 2
probe 3 - terminals
7
8
Tank 3
probe 4 - terminals
9
10
Tank 4
ELECTRICAL INSTALLATION
SmartBox
®
4 LAN PRO
SmartBox
®
4 LAN
Connection of supply voltage:
Voltage:
230 V AC 50 Hz
Connection:
Terminals
PE
+
N
+
L
to the display unit (cable not included in the delivery)
Safety precautions for electrical components
The functions and operating safety of the device are guaranteed only under the climatic
conditions that are specified in TECHNICAL DATA. If the device is transported from a cold to
a warm environment, condensation may cause the device to malfunction or may even destroy
the device. Because of this, you must ensure that the device has acclimatised to the ambient
temperature before using it.
If you have any doubts that the device can be operated safely, do not operate it. Your safety
may be adversely affected by the device, if for example:
•
it is obviously damaged
•
it no longer works as specified
•
it has been stored in unsuitable conditions for some time,
if in doubt, send the device to the manufacturer for repair or maintenance
Observe the safety precautions and the assembly and operating instructions of
connected devices.
Connection of relay contacts on the display unit SmartBox
®
4 LAN
The display unit SmartBox
®
4 LAN has two relay contact pairs for the connection of external
control circuits or for activating external alarm or signal devices.
In case of failure of the unit and if the fill level (and optionally temperature) is above the
selected limit, the contacts of relay terminals
7 + 8
are closed, or
9 + 10
are open - see PCB
in the display unit.
