Elster Alpha Plus Meter Technical Manual Average ratng: 9,3/10 9558 reviews
  1. Elster Alpha Plus Meter Technical Manuals
  2. Elster Alpha Plus Meter Manual

The ALPHA Plus® meter is a totally electronic single phase or polyphase electricity meter and integral register that collects, processes, and stores energy use and demand data on either a single rate or time of use (TOU) basis. It meets or exceeds the American National Standards Institute (ANSI) standards for electricity metering and is certified for use by industrial and electric utility customers. It has been certified for direct access use in California.
ALPHA Plus is the first meter in its class that can time/date/phase stamp voltage sags as short as 2 line cycles in duration. An internal log maintains this information for the last 40 sags.
ALPHA Plus meters support metering requirements ranging from kWh and kW demand meter to multi-rate, real/reactive meter that automatically validates service connections, provides instrumentation readings and load profile readings with remote communications. ALPHA Plus meters are available in a variety of configurations to meet your revenue metering requirements. The meters also offer a PQM (power quality monitoring) option. This feature helps isolate the cause of transients, harmonics and sags. PQM monitors circuit parameters on a cyclic, 24-hour basis throughout the billing period and recognizes deviations beyond the programmed threshold for each phase.
Instrumentation on the ALPHA Plus meter are display quantities that assists in evaluating the service by providing real time analysis of the conditions present at the meter installation. The instrumentation measurements are near instantaneous and require no memory storage within the meter. Using Elster meter support software, system instrumentation may be configured to select which quantities to display as well as the display sequence where they will be shown.

(1) ALPHA Plus (1) A1RLQ+ and A1RL+ (1) 2.3 (2) 2.4 (3) 2.7 Alternate (1) March 20, 2000 (2) February 9, 2004 (3) August 3, 2006 None. 2 wire accepted for 1-phase service. Elster Metering: Make Model Firmware Version Market Category Date Listed Conditions of Acceptance: A3 ALPHA (1) A3RAL, A3RALN, A3RALNQ and A3RALQ. /rakugaki-showtime-psx-iso-download.html. Introduction ALPHA Plus Meter Technical Manual The ALPHA Plus Meter Upon its introduction in 1992, the ALPHA meter has been the standard for totally electronic electricity metering. As features have been continually added, the ALPHA has been able to maintain its position as the leader in solid state metering.

  • Welcome to Byram Laboratories - your one stop electrical testing/measurement equipment, metering & energy solution company. Click or call 1-800-766-1212.
  • The ALPHA Plus Meter Technical Manualcan be referred to by its document number: TM42–2182. Each revision of this manual is designated with a letter, with the first revision being “A,” the second being “B,” and so forth. The document number and revision letter are located at the bottom of each page.

Standard featuresAdvanced featuresOptionsStandards compliance
Data sheets

The ALPHA Plus meter comes with many options that make it a powerful meter:

  • fully programmable
  • pre-programmed at the factory
  • wide operating ranges for voltage, current, and temperature
  • per phase values for kW, kVA or kVAR, voltage & voltage angle, current & current angle, and power factor & power factor angle
  • Up to 4 rate periods for TOU meters
  • average power factor
  • high accuracy internal clock
  • polycarbonate enclosure
  • easily upgradeable through Alpha Keys

There are advanced options that are available. All of these are part of the main meter board:

  • load profile with up to 4 channels
  • power quality monitoring
  • transformer and line loss compensation
  • 4-quadrant metering

The following option boards are available for the ALPHA Plus meter: Veho discovery vms-004 deluxe mac software.

Elster Alpha Plus Meter Technical Manuals

  • relay output option board
    1, 2, or 6 relays for relay output, end of internal (EOI), or load control (LC) uses
  • internal telephone modem option board
    Outage reporting capabilities, off-hook detection, and intrusion detection
  • external serial communications option board
    Interface to external telephone modems, modem sharing unit (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
    Interface to PCs or other communication systems on a 20 mA current loop

*Not available on dedicated single phase, 240 V ALPHA Plus meters.


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

  • C12.1 - 1995: American National Standard for Electric Meters - Code for Electricity Metering
  • C12.10 - 1997: Electroemchanical Watthour Meters
  • C12.20 - 1998: American National Standard for Electricity Meters 0.2 and 0.5 Accuracy Classes

For more information:

  • ITM3 option board data sheet Download (pdf) 806 KB


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Elster Alpha Plus Meter Manual