User's Manual

Electrical installation
Installation guide 970 SmartRadar ATi Page 9
Warning
Improper installation of cable glands, conduit or stopping plugs
will invalidate the Ex approval of your 970 SmartRadar ATi.
Cable glands / conduit
Cable glands:
Explosion proof (Ex-d) or increased safe (Ex-e) cable glands must be used, depending on local
requirements. Refer to the Ex-marking on the identification label of the 970 SmartRadar ATi to
determine which type of cable glands is required.
Note:
Mount the glands according to the supplier’s instructions.
Conduit:
If the 970 SmartRadar ATi is installed in a hazardous area, threaded rigid metal conduit or
threaded steel intermediate metal conduit shall be used.
Note:
If the 970 SmartRadar ATi is installed in a hazardous area, stopper boxes must be applied
within 18 inches (0.45 m) from the 970 SmartRadar ATi to seal the cabling in the conduit.
Depending on the wiring configuration, one to three ¾” NPT threaded cable glands
(or rigid conduits) may be required with the 970 SmartRadar ATi.
Note:
Seal the unused cable inlets with an approved ¾” NPT threaded stopping plug.