Hach-Lange 3705 sc - Manual (Page 13)

11
Installation
3.2 Connecting Digital Gateway to the sc Controller
The digital gateway should be wired to the sensor before connecting to the controller.
3.2.1 Attaching a sc Sensor with a Quick-connect Fitting
The sensor cable is supplied with a keyed quick-connect fitting for easy attachment to the
controller (see
Figure 4: Attaching the Sensor using the Quick-connect Fitting ). Retain the
connector cap to seal the connector opening in case the sensor must be removed.
Optional extension cables may be purchased to extend the sensor cable length. If the total
cable length exceeds 100 m (300 ft), a termination box must be installed.
Note: Use of a load termination box other than Cat. No. 5867000 may result in a hazard.
Figure 4: Attaching the Sensor using the Quick-connect Fitting
Figure 5 Quick-connect Fitting pin assignment
Number Designation Wire Color
1 +12 VDC Brown
2 Circuit Common Black
3 Data (+) Blue
4 Data (–) White
5 Shield Shield (grey wire in existing quick-disconnect fitting)
6 Groove
1
2 3
4
5
6