The meters are designed for unidirectional multi-tariff measurement of active and reactive electric energy and power, as well as electrical parameters in two-wired AC networks with subsequent accumulated data storage, generation of events and data transfer to the AMR/AMI systemвЂ™s data collection centers.
The meters are designed for indoor operation and can be installed in the areas with additional environmental protection (installed inside premises, cabinets or boards).
The meter modifications are available with different rated and peak current, and additional functionalities which are not related to metrological perfomance.
|Meter accuracy class (active/reactive)||
1 / 2
|Rated voltage, V||
|Base/peak current, A||
|Peak current for direct connection meters during 10 ms||30*I max|
|Starting current, А||
|• for meters with base current 5 А||0.02|
|• for meters with base current 10 А||0.04|
GOST R 52320-2005, GOST R 52322-2005. State registers of Russia and CIS countries.
|Active/total power consumption in meter voltage circuit at rated voltage, W/V*A||2 / 10|
|Total power consumed by each current circuit, max, V*А||0.1|
|Additional active/total power consumption in meter volt circuit at rated voltage if PLC interface is available, W/V*А||2 / 24|
|Additional active/total power consumption in meter voltage circuit at rated voltage if GSM interface is available, W/V*А||4 / 5|
|Number of tariffs||4|
|Data retention during power outage, min, years||10|
|Calibration interval, years||16|
|Warranty period, years||3|
|Mean time between failures, min, h||220,000|
|Operating temperature range, °C||-45 to +70|
|Weight, max, kg||0.95|
|Dimensions (LхWхH), mm||130x73x210|
The meter measures, stores, displaying on LCD and communicate information via different interfaces of active and reactive electrical energy independently by every tariff zone and cumulatively for all tariff zones for the following periods of time:
- total cumulative energy;
- energy at the beginning of the current day and 180 previous days;
- energy at the beginning of the current month and 48 previous months.
— TOU with the option of setting individual schedule for every day of the week and month based on 4 tariffs, 16 time zones per day. Individual tariffs schedule is set every month. Minimal interval of each tariff during 24 hours is 1 minute.
— Measurement of electrical network parameters:
- instantaneous values of active, reactive and total power;
- RMS of current and voltage values;
- network frequency;
- power factor.
— Power profile with a 30-minute integration period and storage period 6 months.
— Recording of current, voltage, active and reactive power peaks.
— Event logging.
— Plug-in interface modules: RS-485, GSM, NB-IoT, PLC, CAN.
—Multifunctional galvanically isolated pulse output including load control function.
— Automatic self-diagnosis with error indication.
— Built-in 60A relay.
— Two nonvolatile electronic seals.
— Magnetic field sensor.
— Recording of unauthorized impacts to the indelible event log.
— Multifunctional LCD with backlight.
— LCD indication of data without main power.
— No magnet sensitive elements in measurement circuits and power system.
Table of commercially available meters modifications. Other modifications are available on request.
|Modification||Nominal/ maximum current, А||Interfaces, relay|
|Mercury 203.2Т RBO||5(60)||optical port, RS-485, relay|
|Mercury 203.2Т LBO||5(60)||optical port, PLС-II, relay|
|Mercury 203.2Т GBO||5(60)||optical port, GSM, relay|
|Mercury 203.2Т OBF04||5(60)||optical port, LoRaWAN, relay|
Meter modification code structure:
Mercury 203.2 Т R C L Gx K O B
R – interface RS-485,
C – CAN interface,
L – PLC-II interface,
Gx – GSM-modem (G - CSD/GSM/GPRS, G1 – GSM/GPRS, G3 – UMTS/3G, G4- LTE/4G, G5 –NB-IoT and other),
K – load control (low-current output),
O – load control (embedded latching relay),
B – backlight LCD.
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