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3. Explosion Proof Wiring
Explosion Proof (XP) is a method of designing equipment for installation in hazardous
areas. A hazardous location is an area in which flammable gases or vapors are, or may
be, present in the air in quantities sufficient to produce explosive or ignitable mixtures.
The wiring for the transmitter must be contained in Explosion Proof conduit extending into
the safe area.
In North American applications, due to the specialized design of the SITRANS LG200
transmitter, no Explosion Proof conduit fitting is required within 457 mm (18") of the
transmitter. An Explosion Proof conduit fitting is required between the hazardous and
safe areas.
In European applications, an Ex d gland is required at the conduit connection of the
transmitter.
1.
Install Explosion Proof conduit from the safe area to the conduit connection of the
SITRANS LG200 transmitter (refer to local plant or facility procedures).
2.
Remove the cover to the wiring compartment of the transmitter.
3.
Connect shield to an earth ground at the power supply.
4.
Connect the positive supply wire to the (+) terminal and the negative supply wire to
the (-) terminal.
5.
Replace the enclosure lid before applying power.
Instructions Specific to Hazardous Installations
For KEMA 07ATEX0075 X:
Special conditions for safe use:
Because the enclosure of the Guided Wave Radar Level Transmitter SITRANS LG200
Model 7ML1300-1xxx1-xCA0 and/or Probe Model 7..-....-... is made of aluminium, if it is
mounted in an area where the use of category 1 G apparatus is required, it must be
7ML19985KA02
SITRANS LG200 – INSTRUCTION MANUAL
Page 39
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