Hach sc Sensors Class 1 Division 2 Instructions D'utilisation page 4

For hazardous locations, install a connector safety lock (6139900) on each quick-connect fitting of
the controller connected to a digital sc sensor, digital gateway or digital extension cable. In addition,
install a connector safety lock on the quick-connect fittings on each end of the digital extension
cables.
Note: Sensors and digital gateways certified for hazardous locations have the label "Rated: Class1 Division 2".
1. Remove power to the controller. Refer to
2. Connect the digital sc sensor, digital gateway or digital extension cable to a quick-connect fitting
of the controller. Refer to
3. Install a connector safety lock (6139900) on each quick-connect fitting of the controller that is
connected to a digital sc sensor, digital gateway or digital extension cable. Refer to
Figure 3 and Figure
4. For digital gateways, install a connector safety lock on the quick-connect that connects the digital
extension cable to the digital gateway. Refer to
5. For digital extension cables, install a connector safety lock on the quick-connect fittings on each
end of the digital extension cables. Refer to
Figure 1 Remove power and connect to a quick-connect fitting
4 English
Figure
Figure 1.
4.
1.
Figure 3.
Figure 4.
Figure 2,