Users’ Manual
ESM-40S High sensitivity settlement monitoring system
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Figure 5-2 Wiring details for sensor with SDI-12 output
5.2 For sensors with Modbus (RS-485) output option
The settlement sensor with Modbus (RS-485) interface output requires 4 core bus cable. Connection
details to male and female connectors is shown in figure below.
5-pin male connector
Wiring diagram
5
2
4
1
3
Black: GND
Red: +12V
5-pin female connector
Wiring diagram
5
2
4
1
3
Black: GND
Green: D+
White: D-
Red: +12V
Green: D+
White: D-
Figure 5-3 Wiring details for sensor with Modbus (RS-485) output
