•  fully programmable
• pre-programmed at the factory
• wide operating ranges for voltage, current, and temperature
• 64 KB of main circuit board memory
• complete ANSI C12 protocol capable
• over 50 displayable instrumentation values including:
• average power factor
• high accuracy internal clock
• polycarbonate enclosure
• easily upgradeable through software and optional hardware
• factory-installed lithium battery (for TOU meters)
• easy access battery

• advanced four-quadrant metering
• basic load profiling with up to 8 channels
• instrumentation profiling with up to 32 channels
• 128 KB of main circuit board memory
• transformer and line loss compensation
• power quality monitoring
• three-phase power supply (called the “AnyPhase power supply”)

• relay output option board
  1, 2, or 6 relays for relay output, end of internal (EOI), or load control (LC) uses
• internal modem option board
  Outage reporting capabilities, off-hook detection, and
• external serial communications option board
  Interface to external telephone modems, modem sharing units (MSU-12), EMETCOM, and others
• RS-232 option board
  Point-to-point communication (up to 25 feet/7.5 meters) to a PC, external telephone modem, EMETCOM, and others
• RS-485 option board
  Connect up to 31 meters sharing one communication backbone
• 20 mA current loop option board
  Interace to PCs or other communication systems on a 20 mA current loop
• 1 MB extended memory option board
  For extended profiling data storage

DCSI UMT-C-A3

The UMT-C module retrieves billing data directly from the A3 ALPHA meter registers and transmits it over the TWACS power line system to the TWACS Net Server. The UMT-C-A3 can be installed under the cover on a demand meter (A3D), a TOU meter (A3T), an apparent power meter (A3K), a reactive meter (A3R), and a bidirectional energy meter (A3Q).

Itron 50ESS ERT
The 50ESS ERT retrieves all billing data directly from the meter registers and transmits it to any of the Itron radio-based off-site and automated meter reading systems:

• Handheld OMR
• Mobile AMR
• MicroNet AMR
• Fixed Network AMR

Supported Itron meter reading and software solutions include: Premierplus4, MV-RS, and Intergrator.

EnergyAxis System

Elster's EnergyAxis® is an open standards-based advanced metering infrastructure (AMI) system that improves efficiency and productivity, increases revenue by minimizing uncollectables and theft, and improves customer service. EnergyAxis provides intelligent, self-healing, two-way communications to all electric metering endpoints for scheduled and on-request reporting of energy, TOU demand, load profile, status, outage counts, and voltage. For residential meters, an optional internal service control switch can remotely disconnect and reconnect electricity service.

The capability of the EnergyAxis mesh communications network enables sophisticated billing and systems data collection, automated account management, and provides alerts for different events (such as outages, tamper indicators, and other system anomalies).

Elster is committed to supporting utilty initiatives in energy conservation. Through its open architecture, EnergyAxis is able to integrate with third party electric load control devices, demand-side management devices, in-home displays, and pre-payment services.

Within EnergyAxis, the A3 ALPHA meter can act as the local area collector. When acting as a collector, the A3 ALPHA meter serves two functions: as the data collector and as a meter. In addition, the A3 ALPHA meter can function simply as an endpoint (also called a "node") within the EnergyAxis system without serving as a collector.

Visit Elster Intergrated Solutions for more information on Elster's advanced metering infrastructure solutions.

The A3 ALPHA meter meets or exceeds the ANSI standards for electricity metering, and it is intended for use by commercial and industrial utility customers.

• ANSI C12.1 - 1995 [1]; 2001 [2]
  American National Standard for Electric Meters - Code for Electrcity Metering
• ANSI C12.10 - 1997 [1]; 2004 [2]
  Electromechanical Watthour Meters
• ANSI C12.18 - 1996[1] [2] [3]
  Protocol Specification for ANSI Type 2 Optical Port
• ANSI C12.19 - 1997 [1] [2]
  Utility Industry End Device Data Tables
• ANSI C12.20 - 1998 [1]; 2002 [2]
  American National Stanard for Electricity Meters 0.2 and 0.5 Accuracy Classes
• ANSI C12.21 - 1999 [1] [2]
  Protocol Specification for Telephone Modem Communications

[1] A3 ALPHA meter with traditional power supply
[2] A3 ALPHA meter with CPS power supply
[3] As amended in 2002

For more information: