Wiring The Digital Gateway; Connecting The Optional Digital Output - Hach sc100 User Manual

Figure 20 Installing the Connector Safety Lock
38.1 mm
(1.50 inches)

3.6 Wiring the Digital Gateway

3.7 Connecting the Optional Digital Output

be removed. Optional extension cables may be purchased to extend the sensor cable
length (up to a maximum length of 1000 m (3000 ft).
1. Remove the connector cap from sc100 controller. Retain the connector cap to seal the
connector opening in case the sensor must be removed.
2. Connect the sensor connector to the plug on the sc100.
3. Install a connector safety lock
squeeze the two halves together to lock. To remove the connector safety lock by
inserting a small flat-bladed screwdriver into the locking groove. Pivot the screwdriver
away from the groove and separate the two halves
38.1 mm
(1.50 inches)
DANGER
For Class 1, Division 2 Hazardous Location installations, refer to the Control
Drawing (Figure 2 on page
requirements.
The digital gateway is designed to provide a digital interface to the sc100 controller (or
other appropriate digital controller). The non-sensor end is connected to the controller as
described in section 3.5.1 on page 22
page 24 for hazardous locations.
DANGER
Explosion hazard. Do not connect or disconnect electrical components or circuits
to the equipment unless power has been switched off or the area is known to be
non-hazardous.
DANGER
For Class 1, Division 2 Hazardous Location installations refer to the Control
Drawing (Figure 2 on page
Digital Outputs. Installation of communication protocols other than those specified
in the Control Drawing are not allowed for Class 1, Division 2 Hazardous Locations.
(Figure 20). Align the lock over the connector and
10) for sensor and optional equipment connection
for non-hazardous locations and
10) for permanent connection requirements for the
Installation
(Figure 20).
section 3.5.2 on
25