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KPM312 Three Phase Multi Channel Energy Meter
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.
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.
Function
Model Selection
Specification
Application scenerio
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Function
- 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.
Model Selection
Specification
KPM312 Three Phase Multi Channel Energy Meter Technical Specification
|
Working power source |
Operating Voltage |
AC 85~260VAC |
|
Rated power consumption |
< 3VA |
|
|
Input voltage |
Rated voltage |
3*220VAC |
|
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 |
|
|
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) |
|
|
Frequency range |
45-65Hz |
|
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Power quality monitor |
Harmonic measurement |
U/I 2-31st harmonic distortion rate |
|
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） |
|
Current |
±0.2%（0.01A） |
|
|
Active power |
±0.5%（0.01W） |
|
|
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 |
|
|
DI & DO |
Digital input |
4-way passive main line contact DI input, internal supply DC24V power supply |
|
Relay output |
4-Way DO output, contact capacity 250VAC / 5A, 30VDC / 5A |
|
|
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 |
|
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 |
|
Fast pulse group immunity |
IEC61000-4-4, level 4 |
|
|
Surge immunity |
IEC61000-4-5, level 4 |
|
|
Power frequency magnetic field immunity |
IEC61000-4-8, level 4 |
Application scenerio
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