Hach-Lange 3705 sc - Manual (Page 11)

9
Section 3 Installation
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
The 3700sc Digital Conductivity Sensor can be used with any sc controller. Refer to the
controller manual for installation instructions.
The sc sensor should be wired to the digital gateway before connecting it to the sc
controller. The digital gateway is designed to provide a digital interface to the appropriate
digital controller. Refer to
section 3.1 for more information.
3.1 Wiring the sc Sensor to the Digital Gateway
DANGER
Explosion hazard. Do not connect or disconnect equipment unless power has been
switched off or the area is known to be non-hazardous.
1. Route the cable from the sensor through the strain relief in the digital gateway then
properly terminate the wire ends (see
Figure 3 ).
Note: Do not tighten the strain relief until the digital gateway is wired and the two halves are
threaded securely together.
2. Insert the wires as shown in Table 3 and Figure 3 .
3. Make sure the O-ring is properly installed between the two halves of the digital
gateway and thread the two halves together. Hand tighten.
4. Tighten the strain relief to secure the sensor cable.
5. Connect the digital gateway to the controller.