DLMS/COSEM Smart Electric Meters Three Phase Four Wires KWH Meter with Multi Function

Brief introduct

Three Phase Four Wires Smart Energy Meter with system prepaid and automatic meter reading. It complies with open standard and can operate under standard vending system from third parties.

Basic Functionalities:
Measurement:

Forward and reverse active energy measuring; Energy measuring in step or TOU (Optional); Measures instantaneous voltage, current, power, power factor and frequency in split phase.

Display:

8 digits of LCD display; Balance display configurable; LCD backlight to increase readability in low light conditions; Scrolling display configurable for instant information enquiry; Display the latest 6 months active energy consumption; 12 months billing data and more frozen data for inquiry; Display readable without main power(RWP).

Tariffs:

Tariff in step; Tariff prepayment, Switch out use up; Prepayment is made via a numeric token logged in the IC card; Prepayment and post-payment mode switchable for users' convenience; Balance alarming and surplus days available alarming configurable(Surplus available days alarming works only under step tariff), alarm value configurable; IC card can be made up at any time without any economic loss; Emergency credit for a certain sum of energy supply depending on user's credit level.

Demand:

Measuring active, reactive maximum demand and demand in TOU; Block or slide mode configurable.
Meter cover and terminal cover open detection and record; Terminal cover open alarming and switching trip, by pass; Large magnetic immunity.

Load Control (Optional):

Load limitation, overrun switch, timing auto power recover, alarm value configurable.
User-Friendly Mode(Optional): Support energy supply for low credit during weekends or holidays.

Pulse Output:

The pulse of the meter is sync outputted by LED and auxiliary terminal(Optional).
Real Time Clock(RTC): Built-in hardware clock circuit with temperature compensation function is adopted, with functions of calendar and timing.

Communication Interface and protocol:
Optical communication interface, RS485 Communication; Comply with DLMS and COSEM protocol.