Single Phase Smart Electricity Meter L | Intelligent Multi-tariff Electronic Meter – Nero Electronics — Intelligent IoT devices for hi-

Single Phase Smart Electricity Meter L

Single Phase Smart Electricity Meter L

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Single Phase Smart Electricity Meter L

The intelligent multi-tariff single phase electronic meter is designed for use in smart electricity metering systems with remote collection of readings.  

The embedded IoT communication module allows utilities to receive information automatically about active and reactive energy, generation and consumption, voltage quality, tampering incidents, magnet exposure and etc. via radio (RF434 or RF868) LPWAN, GSM or RS-485 technology.


Resistant to magnetic fields

The counter withstands magnetic fields of 500 mlT, and also records the date and time of exposure.

Notify the dispatcher

The meter will promptly transmit to the dispatcher information about the facts of opening the terminal cover or case, exposure to a magnet, electrical disturbance, attempts to handle an incorrect password, deviation of network parameters, overheating, etc.

Load control relay

Allows you to remotely disable defaulters. Relay triggering is configured depending on certain events.

User's personal account

Electricity consumption and other indicators recorded by the meter can be monitored remotely in your personal account in any place where there is Internet.

Phase and zero current accounting

In addition to metering the current in the forward and reverse directions, the meter monitors and displays the network parameters, generation and consumption.

Autonomous functioning

In the event of a power outage, data will not be lost thanks to non-volatile memory. And the operation of the calendar and display is provided by a built-in battery with a long service life.

Features of single phase electronic energy meter:
  • Accuracy class for active and reactive energy 1;
  • Communication interfaces: Radio (RF434 or RF868), LTE/GPRS, RS-485;
  • Data transfer protocol: Smart Meter Protocol;
  • Circuit and network parameters measurement;
  • Built-in relay for remote power control;
  • Sensors detecting tampering with the housing cover and the terminal block clipses;
  • Resistance to magnetic fields up to 500 mlT, date and exposure time recording;
  • Alert messages about unauthorize interventions or power failure;
  • Multifunctional LCD with backlight;
  • It can be mounted on a DIN-rail.

Functionality of single phase digital energy meter:
  • Recording and storage of measuring data when changing:
    - days - 128;
    - months or billing periods - 40;
    - years - 10.
  • Power control zones;
  • Ability to set the date of the billing period;
  • Automatic winter / summer changeover;
  • Registration and storage of load profiles by 6144 values with an interval of power integration of 1, 3, 5, 10, 15, 60 minutes;
  • Control and display of voltage quality parameters;
  • Low consumption control;
  • Current difference control;
  • Temperature control inside the meter;
  • Registration and indication of the date and time of exposure to magnetic and electromagnetic fields;
  • Data presented in the form of OBIS codes (EN 625056-61).

Technical specifications
Accuracy class
by active energy 1
reactive energy 1
Rated voltage
Operating frequency
47,5 - 52,5 Hz
Base (maximum)
5 (80) A
5 (100) A
Storage depth
at least 6144 values per interval
Starting current
10 mA
Pulse outputs
Number of tariffs
8: 24 schedule of daily tariff programs for 7 days of the week
Daily tariff programs
32 programs, 48 half-hour zones
Setting up essential event groups
64 events in one of 3 groups
Meter constant
3600, 4800 imp./ (kWh), imp./ (kvarh)
A smart electricity single phase meter is installed by analogy with a conventional meter. Installation takes no more than 15 minutes.
One data collection and transmission device supports up to 700 meters without concentrators and repeaters.