Lorawan Wireless Three Phase Smart Electric Energy Power Meter LCD Display IoT Insulation Corrosion Resistance
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 |
No. | LCD figure | Meaning |
1. | PREMON POS NEG ∑ T1 T2 T3 T4 | Current and last month, forward and reverse, cumulative total electricity consumption and each rate |
2. | A B C | ABC three-phase state, electric energy, instantaneous amount indication |
3. | DEMAND | Maximum monthly demand |
4. | DEMAND | Overdraw and residual status indication |
5. |
| Network status indicator (none) |
6. | 8888:8.8:8.8 cos Φ kvarh kW kWh V A | Data display and the corresponding unit symbol |
7. |
| Represents periods sets 1 and 2 |
8. | Indicates current rate status (tip peak flat valley) | |
9. |
| Insufficient voltage indicator of Battery or supercapacitor |
10. | Three-phase voltage or current out- of-phase indicator |
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.