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Three Phase LCD Digital Display Lora Wireless Lorawan IoT Smart Electric Energy Meter for Energy Measurement
Qualification | Three-phase direct meter | Three-phase CT meter |
Standards | IEC62053-21, DL/T645-2007 | |
Rated voltage | 3×220/380V | 3×220/380V |
Operating voltage range | 80%-115% | 80%-115% |
Rated flow limit Ib | 5A | 1.5A |
Maximum current: Imax | 100A | 6A |
Starting current | 0.4% Ib | 0.2% Ib |
Power consumption | Non communication state≤1.5W , In communication state≤3W | |
Power grid frequency | 50Hz | 50Hz |
Frequency range | ±2% | ±2% |
Active measurement accuracy | Class 1/B | Class 0.5, S/C |
Reactive measurement accuracy | Class 2 | Class 2 |
Active pulse constant | 400(imp/kWh) | 3200(imp/kWh) |
Reactive pulse constant | 400(imp/kWh) | 3200(imp/kWh) |
Clock precision | ±0.5S/d(23℃) | ±0.5S/d(23℃) |
Normal operating temperature range | -40° C ~ +70° C | -40° C ~ +70° C |
Extreme operating temperature range | -40° C ~ +70° C | -40° C ~ +70° C |
Transportation and storage temperature range | -40° C ~ +70° C | -40° C ~ +70° C |
Power dissipation | <1.5W ,10VA | <1.5W ,10VA |
The time that the blackout clock preserves | >24h | >24h |
The RS485 Interface | The Default is 2400bps. 1200bps,2400bps,4800bps and 9600bps were available | |
LoRaWAN frequency | CN470,RU864,IN865,EU868,US/AU915,KR920,AS923_1/2/3/4, Custom Channels |
The meter is fully displayed after power on, and then displays the total active energy kWh and total power kW in turn.
Full display Total active power Total power
Universal current terminal wiring diagram
Live installation of wiring is strictly prohibited!
The electricity meter shall be installed indoors as far as possible. Special instrument box protection shall be used for outdoor installation. The installation bottom plate shall be fixed on the wall with strong fire resistance and not easy to vibration. There must be no corrosive gases in the surrounding air where the meter is installed. Avoid dust, salt spray, etc.
When using the electricity meter, the wiring must be conducted strictly according to the wiring diagram in the tail cover of the meter. It is recommended to use copper wire for the lead connected to the terminal seat. The screws of the fixed lead in the terminal seat should be tightened to avoid burning the electricity meter due to bad contact and heating.