Electrical Connections
EI.65.D4.02
12
Figure 10. Loop terminals
4.3 Cable Dimensions
The wiring standard outlined in the table below should be observed:
Cable length Cross section Cable Screen
Input
Pt 1000 0 – 50 m
50 – 100 m
100 – 200 m
≥ 0.4 mm
2
≥ 0.75 mm
2
≥ 1.5 mm
2
When connecting long cables to
inputs, it is recommended to select
a cable type with screen
0 – 10 V 0.4 – 1.5 mm
2
Pulse 0.4 – 1.5 mm
2
Digital 0.4 – 1.5 mm
2
Output
Relay (pump control) 0.75 – 1.5 mm
2
3-point control (230 V
motor valve control)
0.75 – 1.5 mm
2
3-point control (24 V
motor valve control)
0.4 – 1.5 mm
2
0 – 10 V (24 V motor
valve control)
0.4 – 1.5 mm
2
Note:
When choosing cable type and dimension for installation, local government regu-
lations and applicable international directives must be observed at all times.
Note:
Wire resistance can cause measurement error. For example, a resistance of 4 Ω
corresponds to a measured temperature increase of about 1 degree.
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