Payment & Shipping Terms:
|Frequency:||50Hz||Accuracy Class:||Class 1.0.|
|Pulse Constant:||3200imp/kwh||Communication Mode:||PLC, Wifi, Carrier, GPRS|
RF-Module Single Phase Lora Smart Meter for AMR/AMI System DLMS/COSEM Protocol
Measured AC voltage and current have been sampled and transported to professional metering chip, after digital processing, they have been changed to the pulse signal, which in direct proportion to active power, and then sent to microprocessor. Microprocessor would accumulate the pulse signal according to the tariff, then get total power and tariff power and put them in register. At the same time, the microprocessor finishes the function of display and changeover with external messages. Please take attention to the Figure 1
|Connection Mode||Accuracy||Rated Voltage V||Rated Current A||Pulse Constant|
|Through Mutual Inductor||1.0/2.0||220||6||12000|
Remarks: Special pulse constant can be customized as inquire.
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%
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
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)
Wuhan Radarking Electronics Corp. is a modern share enterprises which focusing on the smart Internet of things(IOT) /smart grid energy consumption sensor/intelligent electric safety integrated solution. It established in 2002(former name: Wuhan Radarking Co.,Ltd.)and went public on January 27, 2015 with the stock abbreviation RADARKING and stock number 831722. It owns the independent R&D center and factory which is the key recommended high-tech enterprises in Wuhan city.
It mainly R&D, manufacture and sell the integrated solution of smart Internet of things(IOT) energy consumption sensor/smart grid energy consumption sensor/energy consumption information acquisition and transmission(Collector, Concentrator, Communication Module), smart electric meter, smart water meter, “RDK” energy Internet of Things(IOT) intelligent energy safety integrated solution, digital campus energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter/All-in-One Card cloud computing total charging management integrated solution, energy consumption monitoring and analysis integrated solution, mobile phone APP(Energy Consumption, Fast E Top Up).