Mercury 238 ART
The meters are designed for uni- and bidirectional multi-tariff measurement of active and reactive electric energy and power, as well as measurement of electrical parameters in three-phase threeand four-wired AC networks with subsequent accumulated data storage, generation of events and transmission of information to the AMR/AMI system’s data collection centers.
The meters are designed for indoor and outdoor operation including mounting onto pillars.
The meter modifications are available with different rated voltage, rated and peak current, and additional functionalities which are not related to metrological perfomance.
|Meter accuracy class (active/reactive)||1/2|
|Rated voltage, V||3*230/400|
|Base/peak current, A||5/60; 5/80; 5/100; 10/100|
|Peak current for direct connection meters during 10 ms||30*I max|
|Starting current, А||0.02|
GOST R 52320, GOST R 52322, GOST R 52323. State registers of Russia and CIS countries.
|Active/total power consumption in each meter voltage circuit at rated voltage, W/V*A||2 / 9|
|Total power consumed by each current circuit, max, V*А||0.1|
|Plug-in interface module power consumption in each volt circuit, max, W/V*А||3 / 10|
|Number of tariffs||4|
|Data retention during power outage, years||10|
|Calibration interval, years||16|
|Warranty period, years||3|
|Mean time between failures, min, h||220,000|
|Operating temperature range, °С||-45 to +75|
|Weight, max, kg||1.4|
|Dimensions (LхWхH), mm||218x68x182|
— The meters have split architecture (split-meter) and are equipped with a remote display for remote reading.
— The remote display receives data from a meter via a radio channel simultaneously and independently of data exchange between the meter and an AMR/AMI system.
— Metering, storage and transfer via interfaces active and reactive electrical energy individually by every tariff and cumulatively for all tariffs for the following periods of time:
- total cumulative energy;
- energy at the beginning of the current day and 123 previous days;
- energy at the beginning of the current month and 36 previous months;
- energy at the beginning of the current year and the previous year;
- consumption for the current day and previous day;
- consumption for the current month and 11 previous months.
— Metering of reactive energy by every quadrant in bidirectional meters.
— 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 (24 time zones per day in meters with a DLMS/COSEM, SPODES protocol). Individual tariffs schedule is set every month. Minimal interval of each tariff during 24 hours is 1 minute.
— Measurement of technical losses in power lines and power transformers.
— Measurement of electrical network parameters
- instantaneous values of active, reactive and total power for each phase and the sum of phases with the total power vector direction indication;
- RMS of phase currents and voltages including measurements at one period of frequency for power quality analysis;
- phase angles;
- power frequency;
- power factors of each phase and of their sum;
- THD of sinusoidal phase lines.
— Two independent power profiles with integration period from 1 to 60 minutes, the second profile can be configured as a technical losses power profile.
— The storage period is 170 days for 30 minutes averaging time.
— Recording of morning and evening peaks of active and reactive power at a specified interval from 1 to 60 minutes with a monthly schedule.
— Event logging including power quality events.
— Built-in optical port in all models.
— Optional built-in interfaces: PLC, RF, LoRaWAN.
— Automatic self-diagnosis with error indication on remote display.
— Built-in 100A relay.
— Two nonvolatile electronic seals.
— Magnetic field sensor.
— Recording of unauthorized impacts into the indelible event log.
— DLMS/COSEM and Mercury protocols support.
— Meters have solid housing and transparent terminal cover for prevention from tamper.
Table of commercially available meters modifications.
|Modification||Rated voltage, V||Nominal/ maximum current, А||Accuracy A/R||Interfaces, relay|
|Mercury 238 АRT(2)-02 (D)POWL2F04||3×230/400||5(100)||1,0/2,0||optical port, PLСII, LoRaWAN|
|Mercury 238 АRT(2)-02 (D)POWL4F04||3×230/400||5(100)||1,0/2,0||optical port, PRIME, LoRaWAN|
|Mercury 238 АRT(2)-02 (D)POWF04||3×230/400||5(100)||1,0/2,0||optical port, LoRaWAN|
Meter modification code structure:
Mercury 238 ART2 – 0X DPOW LxFx
А – active energy measurement,
R – reactive energy measurement,
T – tariffs (TOU),
2 – bidirectional measurement,
0Х – code of rated/peak current and voltage, accuracy class,
Rated/peak currents, voltages and accuracy classes
|Code||Rated (peak) current, A||Rated voltage, V||Code Accuracy class|
|01||5/60||3 x 230/400||1/2|
|02||5/100||3 x 230/400||1/2|
|08||5/80||3 x 230/400||1/2|
|09||10/100||3 x 230/400||1/2|
P – extended program functions,
O – built-in load control relay,
W** – remote display,
Lx –PLC (L2-PLC-II, L4-PRIME PLC, L5-G3-PLC, and other),
Fx – RF modem (F03 – ZigBee, F04 – LoRaWAN Lartech, 0F5 – ISM868, F06 – Aura360, F07 – LoRaWAN Vega, F08 – Kometa, and other),
* — SPODES - PJSC Rosseti companion specification of DLMS/COSEM protocol.
** — If the remote display is included into the
delivery package, the ‘W’ symbol can be applied only on the package but
not on the meter’s housing.
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