الوصف

The meter is used in three phase four wire/three phase three wire/two phase three wire power grid. The meter is designed to measure AC active energy and reactive energy with 

time of use (TOU) function (the power flow of sharp time, peak time, flat time and off-peak time) and variable parameter. All of its functions comply with the relative technical 

requirement for class 1 three phase watt hour meter in IEC****6 and its data communication rules obey the requirement of DL/T**5 or MODBUS-RTU. It is a long life meter with the 

advantage of high stability, high over load capability, low power loss and small volume.

Basic Function 
1.LCD display with backlight, backup battery for LCD display at power failure 
2.Bi-directional total active/reactive energy measurement and TOU active/reactive energy measurement ,reverse active/reactive energy measure in the total active/reactive energy 
3.The meter also display three phase real voltage, real current, real power, real power factor, real frequency, real time and date
4.The meter has 4 kinds of tariff defined as sharp, peak, flat and off-peak. The meter can be programmed as single tariff, double tariff and three tariff or four tariff. 
5.The meter has *4 programmable interval tables, of which can set up to *4 intervals as four tariff during *4 hours，The minimum units of each tariff interval can be set up as 1 

minute
6.Four-quadrant reactive energy measurement, it should read from RS**5 port
7.Pulse LED indicates working of meter，Pulse output with optical coupling isolation
8.loss phase indication in LCD
9.Energy frozen monthly(last *2 months),all data store for *5 years at power failure
*0.Infrared and RS**5 communication port
*1.The meter can automatically switch calendar and leap year
*2.Event log
***5mm din rail installation 

Optional Function
1.the meter can measure and display the total forward/reverse active/reactive energy
2.Accumulative working time display and reset total active energy function (these two data can be reset to zero with keypad in meantime)  
3.LCD display with backlight