Single Phase Smart Electric Meter Active Energy Measurement KWH Voltage Current MD
Function & features
1. Owning forward and reverse direction metering function, besides, it can accumulate electric quantity in one same direction, that is, calculation reverse electric quantity into forward direction.
2. The electric quantity adopts displaying, of which there are five integer-places and two decimal-place while also can be six integer-place and one decimal-place, its unit is kilowatt-hour, making record of accumulated total electric power consumption.
3. When electric energy meter is communicated with external equipments, the communication indicator lamp would be brightened, which stands for that the electric energy meter stays at communication state.
4. Own passive isolated type electric energy impulse output terminal, the impulse output is square wave, and the impulse width is not smaller than 80ms±20%.
5. The parameter programming (RS485 or the infrared programming, setup , reading meter) be able to setup the number (address) of ammeter, active electrical energy initial reading, the password and so on.
6. Multi Tariffs: With 2 sets of tariff, total support 8 tariffs at most. The minimum time interval is 15 minutes for periods, which can be set over 0:00am.
7. Measuring: Real time measuring and display current voltage, current, power, power factor and frequency, it can also display the operating parameter such as direction of power.
8. Electric Freezing: With multi freezing ways of instantaneous freezing, timing freezing, day freezing, appoint freezing, hour freezing and etc.
9. Event Log: With function for event log such as clear, program, timing, power down, switch out, switch on , meter cover open and etc.
10. Load Profile: It can profile kinds of operation for query analysis.
11. Communication: RS485, IR, PLC or etc
Mainly Parameters
Reference Voltage: 220V
Reference Current: 1.5A, 5A, 10A, 15A
Reference Frequency: 50Hz
Intrinsic Error: Meet with IEC 62053-21
Start Current: ≤0.004Ib (Direct Mode)
Defluction: When 115% reference voltage and no current in current circuit, no more than 1 pulse can be made by meter.
Consumption: Voltage Circuit Consumption(Out of Communication Status) ≤1.5W, 10VA
Voltage Circuit Consumption(Under Communication Status) ≤3.0W, 12VA
Current Circuit Consumption ≤1VA(Ib)
Working Temperature: -25℃～60℃
Maximum Working Temperature: : -40℃～70℃
Maximum Storage and Transportation Temperature: -40℃～70℃
Relative Humidity: Annual Average＜75%
Month Average 95%
Occasional 85%
Air Pressure: 63.0kPa～106.0kPa (Under 4000m)
Normal Working Pressure: 0.9Un～1.1Un
External Working Pressure: 0.8Un～1.15Un
Maximum Working Pressure: 0.0Un～1.15Un
Clock Accuracy: ≤0.5S/D (Reference Temperature 23℃)
Capacity of Li-Ion Battery: ≥1.2Ah, the working time since power off≥ 5 years.
Data Storage Period ≥ 10 years
Life Time ≥ 10 years
Dimension: 112*160*71 mm
Weight: 0.8kg
Pulse Width: 80±20mS, Typical 80mS
Communication Rate for Optical: 1200bps
Communication Rate for RS485: 2400bps (Typical Value)
600bps, 1200bps, 2400bps, 4800bps, 9600bps (Can be set)
