Mounting and wiring
KL3361 and KL3362
24
Version: 2.2.0
3.5
Connecting the KL3361
WARNING
Risk of injury through electric shock and damage to the device!
Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or
wiring of the Bus Terminals.
Fig. 12: Connecting the KL3361
The diagram shows the connection of four strain gauges (SG) as a bridge circuit, with supply of the
measuring bridge
• through the oscilloscope terminal (left) or
• from an external voltage source U
ext
(right).
Terminal point No.
Connection
+ 24 V
1
Supply voltage for digital output
OUT 24 V
2
Digital output
UB+
3
Input for differential voltage of the measuring bridge
UV+
4
5 V supply voltage for the strain gauges in a bridge circuit or
reference input for the external supply voltage of the measuring bridge
24 V Trigger
5
Trigger input
0V
6
Ground for trigger input
UB-
7
Input for differential voltage of the measuring bridge
UV-
8
0 V supply voltage for the strain gauges in a bridge circuit or
reference input for the external supply voltage of the measuring bridge
Supply of the measuring bridge via KL3361
The total resistance of the measuring bridge should be dimensioned in such a way that the current to be
supplied by the oscilloscope terminal at the terminals UV+ and UV- never exceeds 20 mA.
