December 2015 Quick Start Installation Guide 15
EXPLOSION-PROOF CONDUIT SEAL
When installed as explosion proof in a Division 1 Hazardous
Location, keep covers tight while the transmitter is energized.
Disconnect power to the transmitter in the non-hazardous area prior
to removing end caps for service.
When installed as non-incendive equipment in a Division 2 hazardous
location, disconnect power to the transmitter in the non-hazardous area,
or determine that the location is non-hazardous before disconnecting or
connecting the transmitter wires.
Transmitters installed as explosion proof in Class I, Division 1, Group A
Hazardous (classified) locations in accordance with ANSI/NFPA 70, the
US National Electrical Code, require a LISTED explosion proof seal to
be installed in the conduit, within 18 inches (457.2 mm) of the transmitter.
Crouse-Hinds type EYS/EYD or EYSX/EYDX are examples of LISTED
explosion proof seals that meet this requirement. Transmitters installed
as explosion proof in Class I, Division 1, Group B, C or D hazardous
(classified) locations do not require that explosion proof seal be installed
in the conduit.
To Next Page
Loading...
