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December 2007 IL42-4026E

Elster

Raleigh, North Carolina USA

+1 800 338 5251 (US Technical Support)

+1 905 634 4895 (Canada Main)

support@us.elster.com

www.elsterelectricity.com

REX

/REX2

™

Meter Installation Instructions

General

This leaflet contains installation instructions for the REX and REX2-EA solid-state, residential

electricity meters (referred to as “REX” within this IL) with the following form factors:

■ self-contained: Forms 1S, 2S, and 12S

■ transformer-rated: Forms 3S and 4S

All meters are calibrated and sealed before shipment. For proper installation, accuracy, and

maximum life of the meters, use the following procedures.

WARNING

Use authorized utility procedures to install and service metering equipment. Dangerous

voltages are present. Equipment damage, personal injury, or death can result if safety

procedures are not followed.

WARNING

When using the REX meter with the internal service control switch, follow authorized utility

procedures to reconnect electrical service. Property damage, personal injury, or death can

result if proper safety precautions are not followed.

Installing the REX Meter

1. Make sure the meter to be installed matches the service type (that is, form), current,

capacity, voltage, and service socket.

2. Check the socket and verify that the wiring is correct. See “Internal Wiring Diagrams” on

page 2 and “Installation Wiring Diagrams” on page 3 for wiring diagrams.

3. Make sure that the voltage disconnect or test link on the back of the meter is closed, if

installed.

4. Line up the meter blades to the socket jaws and rock the meter into place. Make sure

that the meter is in the upright position.

5. Make sure the LCD turns on and the energy use indicator flashes if load is present.

The LCD has two pulse arrows. The arrow pointing to the left indicates energy received; the arrow

pointing to the right indicates energy delivered. For more information, see the technical manual for

your meter.

6. Apply all seals and record any necessary information.

Summary of content (4 pages)

PAGE 1
December 2007 IL42-4026E REX®/REX2™ Meter Installation Instructions General This leaflet contains installation instructions for the REX and REX2-EA solid-state, residential electricity meters (referred to as “REX” within this IL) with the following form factors: ■ self-contained: Forms 1S, 2S, and 12S ■ transformer-rated: Forms 3S and 4S All meters are calibrated and sealed before shipment. For proper installation, accuracy, and maximum life of the meters, use the following procedures.
PAGE 2
IL42-4026E December 2007 Internal Wiring Diagrams WARNING ! Circuit closing devices must be used on current transformer secondaries. This applies to Form 3S and 4S meters. Dangerous voltages may be present if current transformer secondaries are open-circuited while the transformer is energized. Equipment damage, personal injury, or death can result if circuit-closing devices are not used.
PAGE 3
December 2007 IL42-4026E Installation Wiring Diagrams WARNING ! Circuit closing devices must be used on current transformer secondaries. This applies to Form 3S and 4S meters. Dangerous voltages may be present if current transformer secondaries are open-circuited while the transformer is energized. Equipment damage, personal injury, or death can result if circuit-closing devices are not used.
PAGE 4
IL42-4026E 2 N December 2007 1 2 1 2 N 1 2 1 N N Service control switch Service side voltage Form 12S 2 phase, 3 wire wye self–contained Load side voltage 120/208 service voltage only 25H05 29H05 120/208 service voltage only 1 L 2 O A N D 1 L 2 O A ND Form 12S 2 phase, 3 wire wye self–contained FCC and Industry Canada Compliance Compliance Statement (Part 15.19): This equipment complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada.