Single phase din rail multi-function energy meter, Type DDS238-2 ZN

الوصف

The meter is designed to measure single phase two wire AC active 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 single 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 energy and TOU active energy measurement,reverse active energy measure in the total active energy 
3.The meter also display 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.Pulse LED indicates working of meter，Pulse output with optical coupling isolation
7.Energy frozen daily (last *0 days) and monthly(last *2 months),all data store for *0 years at power failure
8.Infrared and RS**5 communication port
9.The meter can automatically switch calendar and leap year
*0.Event log
*1.*5mm din rail installation 

Optional Function
1.the meter can measure and display the total forward/reverse active energy
2.Accumulative working time display and reset energy function (these two data can be reset to zero with keypad in meantime, the reset energy kWh display is dependent with the 

total energy display, this reset will not affect the total energy)