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   Multitariff meters



The meter is intended for accounting of active electric power in three-, four-wire AC mains with 50 Hz frequency differentiated both by the time of day and by the level of consumed electric energy and power. Energy consumption is displayed on liquid crystal display (LCD).

By means of a built-in communication equipment, the electric power meter can be used for remote access to meter's RS-485 interface via corresponding networks (GSM, PLC, Ethernet, RF).
The meter can be used independently or as a part of automated informational and measurement electric power monitoring and accounting systems (AIMEPMAS) with an option of automatic power consumption monitoring.


  • Tariff schedule for 4 tariffs (for every day of a week of each month and holidays in each month).
  • Nonvolatile memory.
  • Programmable pulse output for 6 modes.
  • Current transformer is used as current sensor.
  • Option for connection of external 9 V back-up power source for readout in case of loss of 230 V.
  • Communication interface - RS-485.
  • Half-hour profile of active energy and power (storage period is 2 months).
  • Optional setting of power limit with a controlling function in case of established limit exceeding.
  • Option for load cutting.
  • Electronic seal.

Additional interface modules can be installed into meter's body. In this case, a meter becomes a communicator and other meters at a facility can be connected to its interface with no need for additional interface modules. Hence, a local network is established with a possibility of remote access to each meter at a facility.


Meter provides measurement, registration and storage in nonvolatile memory of:

  • values of accounted electric energy as progressive total, from the moment of manufacturing for all tariffs;
  • values of accounted electric energy at the beginning of each month for all tariffs with storage period of 24 months;
  • values of accounted electric energy and maximum power for each half an hour during two months;
  • time and date for power supply switching on/off (32 events);
  • time and date for channel opening/closing for recording (32 events);
  • time and date before and after correction (32 events);
  • time and date for terminal block cover opening and closing (32 events);
  • dates of the last time correction;
  • values of accounted active energy as progressive total with excess of power limit for all tariffs;
  • values for instantaneous active load power.

The power meter allows reprogramming option via a communication interface for:

  • exchange speed;
  • group and individual password;
  • address;
  • password for recording.

If wrong password for recording is entered three times, the electric power meter blocks the recording channel for 24 hours.

Electric power meter generates load control signals according to various programmable criteria and allows to start/cut load by means of a built-in relay or an external switching device.
The electric power meter has the option of reading and reprogramming via RS-485 interface for the following parameters:

  • consumer's category;
  • current time and date;
  • schedule of holidays;
  • annual tariff schedule (for every day of a week or a holiday of a month);
  • power limit and monthly energy limit;
  • function of permission/prohibition for automatic change from the Daylight Saving Time to the Standard Time and vice versa;
  • operating modes of electric power meter pulse output; calibration, telemetry, switching on/of, power control, clock calibration;
  • indication mode and indication period within the range from 6 to 60 sec.;
  • permission for single tariff operation mode.

Electric power meter displays the following parameters:

  • actual tariff;
  • date and time;
  • electric power consumption according to 4 tariffs;
  • monthly electric power consumption;
  • tariff schedule for the current month;
  • current active power.




Rated voltage, V


Established operating voltage range, V

108 to 253

Extended operating voltage range , V

160 to 265

Maximum operating voltage range , V

0 to 265

Base (maximum) current, A

5 (60) or 5 (100)

Accuracy class


Mains frequency, Hz


Starting current (sensitivity), A


Number of tariffs


Total power consumed by meter's series circuit at rated current and rated frequency, VA

maximum 0.1

Total (active) power consumed by each voltage path of the meter at rated current value and rated frequency value, W

maximum 2 (1.5)

Data exchange rate, bit/sec.

1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200

Transmission numbers of telemetry output in the basic (calibration) mode, pulse/kWh

500 (10000)

Range of operating temperatures, oC

-40 to +60

Mean time between failures, h


Recalibration interval, years


Average lifetime, years


Weight, kg

maximum 1.5

Overall dimensions, mm



New products

Time-schedule of workshops


Copyright © 2012
Nizhny Novgorod Factory named after M.V. Frunze.
All rights reserved.
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