Hach-Lange 5740 sc - Manual (Page 11)

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Section 3 Installation
DANGER
Only qualified personnel should conduct the installation tasks described in this
section of the manual.
3.1 Connecting the Sensor to an sc Controller
3.1.1 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 (
Figure 1 ). 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 1 Attaching the Sensor using the Quick-connect Fitting
Figure 2 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