KPM73 Multi function Panel Meter

KPM73 Series multi function panel meter with recording functions and ARM processor can measure and monitor three-phase electrical power parameters, bi-directional four-quadrant energy, power quality analysis, and so on.

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Features of multi function panel meter

  • Measure more than thirty different types of fundamental electricity, including phase/line voltage, three-phase current, zero sequence voltage, zero sequence current, apparent power, active power, reactive power, power factor, and frequency.
  • Determine the amount of reactive energy consumed each month with precision by measuring and displaying the average power factor of the previous three months.
  • Multi-rate statistics and power statistics for the class 0.5S 4 quadrant
  • Compile demand data and note the highest and lowest values. Working hours and statistics about load times
  • The function for recording time can capture 100 events.
  • Support computation of the current K factor, imbalance rate, total harmonic distortion rate, and up to the 51st harmonic.
  • Modbus-RTU protocol, standard 1-way Rs485 communication interface, and optional Profibus-DP connection module.
  • Four-way passive digital input is optional. 4-way relay output option
  • One-way 4–20 mA analog output option
  • Passive optical coupler collector with one road and active pulse output Optional 1-way PT100 temperature input with voltage and current sampling at 256 points per cycle to guarantee measurement accuracy
  • To get a good visual effect in a bright light and large viewing angle environment, use the FSTN large screen LCD with bright LED backlight uniform display.

Feature of KPM73 multi function panel meter

Application of multi function panel meter

The applications of the multi function panel meter are listed in the following:

  • Measure, and monitor power distribution system parameters
  • Collect energy consumption data that cost center analysis needs
  • Limit monitor alarm (such as over-voltage, and power consumption)
  • Power quality analysis
  • DC/Green building, or DC

Specification of multi function panel meter

Working power source Operating Voltage AC 85-270V/DC 80-300V
Rated power consumption < 3VA
Input voltage Rated voltage 57.7/100V,220/380V,380V/660V Need to customize
Sill value 5V
Overload capacity 1.2 times the rated voltage allowed, continuous work; 2 times the rated voltage allowed 1second
Power consumption <0.5VA/phase(rated)
Measurement range Phase voltage(LN):50~270VAC, line voltage(LL):90~470VAC
Input current Frequency range 45~65Hz
Rated current Default 5A,Input range 1-6A;Optional 1A,Input range 1-1.2A
Sill value 5A Configuration,5mA ;1A Configuration,0.8mA
Overload capacity 1.2 times rated current allowed, continuous work; 20 times the rated current allowed 1 second
Power consumption <0.75VA/phase(Rated current 5A);<0.25VA/phase(Rated current 1A)
Input output Switch value input 4-way passive main line contact DI input, internal supply DC24V power source
Relay output 4-way DO output, Contact capacity 250VAC/5A,30VDC/5A
Analog output Output range 4~20mA,overload allows 1.2times
Temperature input Measure range 0℃~100℃
Power quality monitor Harmonic measurement Voltage/current 2~51st harmonic distortion rate total harmonic distortion rate.
Harmonic distortion rate Phase voltage, line voltage
Imbalance rate Voltage. current
Measurement accuracy Voltage ±0.2%(0.01V)
Current ±0.2%(0.01A)
Active power ±0.5%(0.1W)
Reactive power ±2.0%(0.1kvar)
Active energy ±0.5%(0.1kWh)
Reactive energy ±2.0%(0.1kvarh)
Power factor ±0.5%(0.001)
Frequency ±0.02Hz(0.01Hz)
Temperature ±1℃(1℃)
Communication Communication interface RS485,Profibus-V1,Photoelectric isolation interface
Communication protocol ModbusRTU,1200~38400bps;




Power frequency withstand voltage AC2kV/min~1mA Input-output-power source
Insulation resistance >50MΩ
Impact voltage 5kV Peak ,1.2/50us
Working environment Operating temperature -25℃ ~ +70℃
Relative humidity 5%~95% No condensation
Storage temperature -30℃ ~ +75℃
Altitude No more than 4000m
Electromagnetic Compatibility Surge (impact) immunity IEC61000-4-5,Level4
Electrical fast burst


Electrostatic discharge


Power frequency magnetic

field immunity


Wiring of KPM73 Multi Function Panel Meter

Low-voltage three-phase four-wire typical wiring of multi function panel meter High-voltage three-phase three-wire typical wiring of multi function panel meter