Mercury 236 ART

— Multifunctional meters for AMR/AMI systems in small-size housing with DIN-rail mounting are similar in most functions to the multifunctional meters Mercury 234.

— 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 123 previous days (for meters with Q index);
• energy at the beginning of the current month and 36 previous months (for meters with Q index);
• energy at the beginning of the current year and previous year;
• consumption for the current day and previous day;
• consumption for the current month and 11 pre vious months.

— Energy measurement independently from current circuits phasing (measurement per module).

— TOU with the option of setting individual schedule for every day of the week 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. Multi-tariff perphase metering function.

— Measurement of electrical network parameters.

• instantaneous values of active, reactive and total power for each phase with total power vector direction indication;
• RMS of phase currents and voltages ;
• phase angles values;
• power frequency;
• power factors of each phase and o f their sum;
• THD of sinusoidal phase lines.

— Power profile and technical losses power profile with arbitrary integration period from 1 to 60 minutes. 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 with a monthly schedule.

— Event logging including power quality events.

— Pulse output including a load c ontrol function.

— Automatic self-diagnosis with error indication.

— Nonvolatile electronic crimped seals.

— Recording of unauthorized impacts to the indelible event log.

— Multifunctional LCD with backlight and OBIS-c odes indication.

— LCD indication of data without main po wer.

Table of commercially available meters modifications. Other modifications are available on request.

Meter modification code structure:

Mercury 236 ART-0X P Q R L S

А – active energy measurement,
R – reactive energy measurement,
T – tariffs (TOU) , electronic seals,
0Х – code of rated/peak current and voltage, accuracy class,
Rated/peak currents, voltages and accuracy classes