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SmartBox
®
4 BASIC PRO
6 / 16
Observe the safety precautions and the assembly and operating instructions of
connected devices.
Connection line between indicator and probe unit
Voltage
Probe supply 20 V DC
Connection
Probe connection cable
+
–
SmartBox 4
BASIC PRO
Probe 1 - terminals
3
4
Tank 1
Probe 2 - terminals
5
6
Tank 2
Probe 3 - terminals
7
8
Tank 3
Probe 4 - terminals
9
10
Tank 4
Excess voltage!
Damage to components and device defect.
No 230 V AC connections may be made to terminals
3
+
4,
5
+
6, 7
+
9
und
9
+
10
or
probe input terminals
1
+
2
!
Switching voltage max. 250 V AC
Switching current max. 3,5 A
SmartBox
®
4 BASIC PRO
Fuel oil tank - wiring example SmartBox
®
4 BASIC PRO
Oil tank
Level
probe