A1120/40

The A1120/40 has been designed to meet the changing needs of the Electricity Supply Industry.

The meter is available as CT operated or Direct Connected and can be supplied in a   number of variants that measure combinations of active energy, four quadrant reactive energy and kVAh.

The meter offers a ‘modular’ solution for remote communications, allowing the meter to be integrated into an AMI system at any time. Flexibility in communications provides the Utility with the means to employ the most cost effective communications method. The serial port provides power for a modem removing any requirement for external connections. The modem fits neatly under the terminal cover providing a high degree of protection against fraud or tampering.

Communications are provided via the optical (IEC 62056-21) port or serial port (optional). The meter supports data stream mode, allowing fast reading of meter data. The serial port can be multi-dropped, allowing access to up to 10 meters in a single installation. The A1140 permits up to 90 days of load profile data to be collected in less than 30 seconds.

The meter offers extensive security data which includes a programming log with user ID. Further security can be provided as an option with terminal cover and main cover detection. As an alternative option, the later detection switch can be used to allow the CT ratio to be changed.

A count of the number of each event is recorded. A time and date stamp of the three most recent events together with the source is recorded. The count and time and date of the most recent event can be included in the display sequence.

The Liquid Crystal Display has large characters that can be viewed from a wide angle.

The display sequence is programmable and is supported by two modes of operation, default and utility. Displayed information can have English language identifiers or OBIS (Object Identification System) codes. The OBIS codes can be changed via the Power Master Unit.

Data received from external meters can be included in the display sequence.

Power Master Unit software provides a user-friendly WindowsTM graphical interface for programming the meter and reading meter data.


Features/Options Tariff Security Standards / Approvals Download  
 

Features

  • Accuracy  kWh Class 1 or  2 (EN 62053 -21)
         Wh Class A or B (EC Directive 2004/22/EC [MID]) 
         kvarh Class 2 or 3
  • Comprehensive tariff structure
  • Instrumentation
  • Modular design to allow future upgrades
  • Large digit (9.8 mm register digits) Liquid Crystal Display
  • IEC 62056-21 (formerly IEC 61107) optical communications port
  • Internal clock and calendar with battery back-up
  • 15 years product life
  • Comprehensive security data
  • Display of external meter information
  • Compact design
  • DIN (BS) double insulated, glass filled polycarbonate case
  • IP53 in accordance with IEC 60529 : 1989


Options

  • RS 232 serial communications
  • CT or direct connected
  • Load profiling (A1140)
  • Module/battery carrier
  • Twelve external registers
  • SO (EN 62053-31) or 100mA relay output
  • Terminal cover removal detection switch
  • Main cover removal detection or CT ratio programming switch
  • Terminal cover with cut-out
  • Read without power option (battery support)

Tariff Structure

  • 8 time-of-use (TOU) registers
  • 4 Maximum Demand Registers
  • 48 switching times
  • 12 seasons
  • 24 change of season dates
  • 32 exclusion dates
  • 13 end of billing date
    Independent day control
    Daylight saving
    Deferred tariff
    Tariff scheme CRC

Security
The meter offers extensive security data which includes a programming log with user ID.
Further security can be provided as an option with terminal cover and main cover removal detection. As an alternative, the latter detection switch can be used to allow the CT ratio to be changed.
A count of the number of each event is recorded. A time and date stamp of the three most recent events together with the source is recorded. The count and time and date of the most recent event can be included in the display sequence.

Security Features

  • Programming (with user id)
  • CT programming
  • Phase failure A, B, C
  • Power fail
  • Reverse run energy
  • Per phase reverse run A, B, C
  • Billing count
  • Terminal cover removal
  • Remaining battery life
  • In service hours
  • Active scheme CRC
  • Scheme Id
  • Error flag
  • Main cover removal
  • Watchdog count

The A1120/A1140 conforms to:

  • The essential requirements of the directive 2004-22/EC on Measuring Instruments (MID)
  • The general requirements and particular requirements of EN 50470 Parts 1 & 3, and complies with Class 2 Mechanical Environment and Class E2 Electromagnetic Environment.
  • IEC 62053 - 21  kWh, Class 1 and 2 Static
  • IEC 62053 - 23  kvarh, Class 2 and 3 Static
  • IEC 62056 - 21  OBIS Identification Code Requirements
  • DIN 43857 Part 2 and 4, Dimensional Requirements (except for top fixing  centres)
  • EN 50470 1-3      kWh Class A and B
  • EC Directive 2004/22/EC (MID) Class A and B
  • The degree of ingress protection is to IP53, IEC 60529:1989 
  • Meters are marked with the European CE mark, in accordance with the Marking Directive 93/68/EEC, to indicate compliance with the requirements of the EMC Directive 89/336/EEC.







 
 


 


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