Single Phase Multi Tariff Energy Meter

Single Phase Multi-tariff Electronic Meter

General introduction

Single Phase Multi-tariff Electronic Meter adopts advanced ASIC, LCD, SMT technology with TOU or step tariff functions. It is featured with high accuracy and reliabity, low power consumption, long life, etc. It also has infrared and RS485interface.

Technical specifications

Main functions

• Display and indication: It adopts wide viewing angle LCD with backlight and the meter can be read and inquired with backlight. The displayed contents can be switched via button, and the displayed items can be configured as per the requirements.One kWh impulse isolated output and one kWh impulse LED.
• Metering: Import, export and total kWh metering, the total kWh can be combined by import and export kWh.
• TOU function:4 tarifs; Built-in 2 sets of time zone tables. Calendar and clock are available. It can set 8 time periods with minimum 15 minutes in 24 hours.
• Billing: It can record latest 12 time's billing historical data including total kWh and kWh of each tariff. If billing time is missed during a power outage,all billing data will be supplemented with latest 12 times when the power is on.
• Measurements: It can measure various parameters such as voltage, current(neutral), power, power factor, etc.
• Event logs: It can record programming, meter cover open, terminal cover open, power outage, time correction with timestamp, etc.
• Communication interface: RS485 and far infrared.
• Meter can be read during power outage.

Q & A

What are the main advanced features of smart energy meter?

A: (1) Appearance and structure unification: The type specification promulgated by State Grid Company makes specific requirements on smart energy meters' dimension and layout, and even the LCD display interface, which is convenient for detection, installation and maintenance.

(2) Interface display diversity: On the LCD display of local IC card prepaid energy meter, in addition to seeing users' this month power consumption, it can also display various information including current tariff, by which users can judge current power consumption status.

(2) Application function extension: Except traditional metering function, smart energy meter also carries out application extension on various functions, such as energy day freezing, historical energy data query, exception management, etc.

(4) Communication protocol concretion: Via DLT/645-2007 The communication protocol of multifunction energy meter and its filling documents, it makes an elaboration on message formation, field definition, etc., which can ensure the compatibility among energy meters produced by different manufacturers.

(5) Information exchange securitization: Compared with traditional energy meters, smart energy meters all have ESAM module, which carriers out encryption authentication to important information such as power purchase, control, etc.