Hach GS1140 Manual Del Usuario página 14

Figure 7 CDx440sc gateway and an SC Controller
1 Non-hazardous area
2 Sensor
3 Power/4–20 mA sensor cable
4 RS-232 cable
Figure 8 Device—Direct analog (4-20 mA) or digital (RS-232) communication
1 Non-hazardous area
2 Sensor
3 Power/4–20 mA sensor cable (12 to 28 VDC,
4-20 mA loop power)
4.1.1 Cut the sensor cable (optional)
If necessary, cut the sensor cable(s) to decrease the length. After a sensor cable(s) is cut, prepare
the sensor wires as shown in
wire insulation.
Note: When two sensor cables are used, the sensor cables must be attached to each other with zip ties to keep the
EMC compliance rating, unless the sensor cables are installed in conduit.
14 English
Figure 9. Make sure to cover the bare wire of the two shield wires with
5 CDx440sc gateway
6 Digital extension cable
7 SC Controller
4 RS-232 cable (optional)
5 Device (e.g., SCADA or PLC)