KPM312 Three Phase Multi Channel Energy Meter
KPM312 Three Phase Multi Channel Energy Meter adopts DIN 35MM rail type installation structure and LCD display. It integrates 4 channels three-phase electric parameter measurement.
Features
KPM312 default communication is Modbus-RTU by RS485 interface. WiFi, 4G, Lora communication are optional. The meter can also expand relay output for each channel, temperature measurement for each channel.
- KPM312 Three Phase Multi Channel Energy Meter
- Multi channel measurement: 4 channel 3 phase loop power parameter measurement
- Communication protocol: Modbus-RTU, DL/T645, MQTT
- Optional function: 4 digital inputs and 4 digital outputs for each channel
- 4 temperature measurement for each channel
- Optional connection: Lora, WiFi, 4G, RS485
- Installation method: DIN rail 35MM three phase energy meter
- Measurement: three phase UL-L, UL-N, I, F, PF, P, Q, S, four-quadrant power, etc.
- High accuracy: U Class 0.2; I Class 0.2; P Class 0.5S.
- Active energy Class 0.5S.
- Reactive energy Class 2.0.
- Power quality analysis:
- 2-31st harmonic analysis.
- I/U Total distortion rate;Crest coefficient.
- Valley coefficient;Current, Voltage imbalance rate.
- Record function:
- Monthly average power factor and power data for the last three months.
- Demand and maximum and minimum data statics.
- Meter working time, load time statics.
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Working power source |
Operating Voltage |
AC 85~260VAC |
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Rated power consumption |
< 3VA |
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Input voltage |
Rated voltage |
3*220VAC |
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Overvoltage capability |
1.2 times rated voltage allowed, continuous work; 2 times the rated voltage allowed 10S |
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Rated power consumption |
<0.5VA(per phase) |
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Measurement range |
LN：50~260VAC |
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Frequency range |
45-65Hz |
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Input current |
Rated current |
5-800A based on CT range |
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Overload capacity |
1.2 times rated current allowed, continuous work; 20 times the rated current allowed 1S |
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Rated power consumption |
＜0.75VA/phase（5A）; <0.45VA/phase (1A) |
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Frequency range |
45-65Hz |
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Power quality monitor |
Harmonic measurement |
U/I 2-31st harmonic distortion rate |
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Harmonic distortion rate |
Phase voltage，Phase current |
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Imbalance rate |
Voltage，Current |
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Measurement accuracy |
Voltage |
±0.2%（0.01V） |
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Current |
±0.2%（0.01A） |
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Active power |
±0.5%（0.01W） |
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Reactive power |
±2.0%（0.01var） |
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Power factor |
±0.5%（0.001） |
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Frequency |
±0.02 (0.01Hz) |
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Active energy |
±0.5%（0.1kwh） |
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Reactive energy |
±2.0%（0.1kvarh） |
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Communication |
Communication |
RS485，WIFI, 4G, LORA |
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Communication protocol |
Modbus-RTU, 1200-38400BPS |
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DI & DO |
Digital input |
4-way passive main line contact DI input, internal supply DC24V power supply |
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Relay output |
4-Way DO output, contact capacity 250VAC / 5A, 30VDC / 5A |
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Working environment |
Operating temperature |
-25℃ ~ +70℃ |
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Storage temperature |
-30℃ ~ +75℃ |
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Relative humidity |
5% ~ 95% No condensation |
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Altitude |
Not more than 3000m |
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Electrical insulation |
Dielectric strength |
Power frequency voltage AC 2kV, working time 1 min |
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Insulation resistance |
＞50MΩ |
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Impact voltage |
5kV (Peak),1.2/50us |
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Electromagnetic Compatibility |
Electrostatic discharge immunity |
IEC61000-4-3, level 4 |
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Fast pulse group immunity |
IEC61000-4-4, level 4 |
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Surge immunity |
IEC61000-4-5, level 4 |
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Power frequency magnetic field immunity |
IEC61000-4-8, level 4 |
