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4.0
Meter Installation
4.1 Mounting
STEP 1: Using the appropriate sized mounting hardware, fasten the
Class 1000 meter enclosure to the selected mounting surface.
The four mounting holes are centered 6.75” H x 4” W. The mounting
hole spacing is identical for either the NEMA 12 or NEMA 4X
enclosure.
NOTE: Only the NEMA 4X enclosed unit is suitable for outdoor environmental
conditions. Units housed in NEMA 12 enclosures must only be installed in indoor
environments where it will not be affected by the elements, such as
moisture and extreme temperatures.
4.2 Main Power Board Connections
STEP 1: Install a temporary ground for ESD (Electrostatic Discharge) protection.
With all circuits de-energized, connect a temporary protective earth
ground connection for ESD protection. Prior to performing any unit
wiring, be sure to discharge any static on your person.
STEP 2: Install the Class 1000 Protective Earth Ground. Connect an earth
ground wire to the Class 1000 protective earth ground terminal screw
located on the bottom right side of the main power board. After
installing the protective earth ground wire, securely fasten the protective
earth ground screw.
WARNING: Failure to attach the protective earth ground wire securely to
the enclosure creates a potential shock hazard. Do not operate the Class
1000 meter without a protective earth ground connection securely installed.
STEP 3: Wire Entry
Two openings exist on the unit enclosure, one for 1/2” conduit and one
for 3/4” conduit. The 3/4” conduit opening located on the bottom of the
enclosure is used to bring in MAINS Power (voltage lines to power
meter) and current sensor wiring. The 1/2” conduit opening located on
the top of the enclosure is used to interface low voltage signals, such as
the IDR interface and isolated pulse output. (Outdoor enclosures
equipped with one 3/4” conduit opening on bottom of enclosure only.)
Route the appropriate cabling to and through the respective enclosure
opening. The conduit and fi ttings interfacing the enclosure entrances
must be UL listed and properly sized to the enclosure port diameter,
The
interfacing
fi tting must use a gasketed seal ring to interface
between the conduit fi tting and the enclosure entry point. After installing
the
conduit
fi tting and conduit, verify that the conduit fi ttings are aligned
properly to their respective enclosure entrance ports and tightened
securely to prevent moisture entry. VERIFY that each conduit slip nut
is securely tightened to its respective conduit fi tting.