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KPM37 Wireless 4G WiFi LoRa Din Rail Three Phase Energy Meter
KPM37 Wireless 4G WiFi LoRa Din Rail Three Phase Energy Meter
KPM37 Wireless 4G WiFi LoRa Din Rail Three Phase Energy Meter adopts DIN 35MM rail type installation structure and LCD display. It integrates three-phase electric parameter measurement, 2~31st harmonic analysis and time statistics. KPM37 default communication is Modbus-RTU by RS485 interface. WiFi, 4G, Lora communication are optional. The meter can also expand 2-way digital input and 2-way relay output, 4-way temperature measurement and 1 way residual current measurement.
KPM37 Wireless Three Phase Energy Meter has the advantages of small size, high accuracy, high reliability, easy installation, etc. It is mostly used for projects for system integration, wire line modification and in limited or inconvenient installation space, etc.
Function
Model Selection
Specification
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Function
- Communication protocol: Modbus-RTU, DL/T645, MQTT
- Optional function: 2 digital inputs; 2 digital outputs;
- 4 wires temperature measurement; residual current measurement.
- 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
KPM37 Wireless 4G WiFi LoRa Din Rail Three Phase Energy Meter Model selection
Specification
KPM37 Wireless 4G WiFi LoRa Din Rail Three Phase Energy Meter Technical Specification
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Working power source |
Operating Voltage |
AC 85-265V/ DC 80-310V |
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Rated power consumption |
< 3VA |
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Input voltage |
Rated voltage |
57.7/100V,220/380V |
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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， LL：90~400VAC |
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Frequency range |
45-65Hz |
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Input current |
Rated current |
Default 5A, input range 1-6A; optional 1A, input range 1-1.2A |
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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 port |
RS485，Photoelectric isolation interface |
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Communication protocol |
Modbus-RTU, 1200-19200BPS |
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DI & DO |
Switch value input |
3-way passive main line contact DI input, internal supply DC24V power supply |
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Relay output |
2-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 |
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