Smart electricity meter RS485 port modbus-RTU digital multifunction electric power meter with LCD display

KPM73Multifunction Meter-Technical Parameters

Working Power Source

Operating Voltage

AC85~265V/DC8~300V

Rated Power

<3VA

Input Voltage

Rated Voltage

57.7/100V,220/380V,380V/660V(Need to customize)

Sill Value

5V

Overload Capacity

1.2 times rated voltage allowed,continuous work; 2 times the rated voltage allowed 1second

Power Consumption

<0.5VA/phase(rated)

Measurement Range

Phase voltage(LN):50~260VAC,line voltage(LL):90~450VAC

Frequency Range

45~65Hz

Input Current

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 1.2 times

Temperature Input

Measure range 0℃~100℃

Power Quality Monitor

Harmonic Measurement

Voltage/current2~51th harmonic distortion rate,total harmonic distortion rate

Harmonic Distortion Rate

Phase voltage,line voltage

Imbalance Rate

Voltage. current

Measurement Accuracy

Voltage

Current

±0.2%(0.01A)

±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)

±0.02Hz(0.01Hz)

Temperature

±1℃(1℃)

Communication Interface

RS485,Profibus-V1,Photoelectric isolation interface

Communication Protocol

Modbus-RTU,1200~38400bps;
Probibus-DP,9600~12Mbps

Electrical Insulation

Power Frequency Withstand Voltage

AC2kV/min~1mA Input-output-power source (GB/T 13729)

Insulation Resistance

>50MΩ                       (GB/T 13729)

Impact Voltage

5kV(Peak),1.2/50us    (GB/T 13729)

Working Environment

Operating Temperature

-25℃ ~ +70℃

Relative Humidity

5%~95% No condensation

Storage Temperature

-30℃ ~ +75℃

Altitude

No more than 4000m

Electromagnetic Compatibilit

Surge Resistance

GB/T 17626.5-2008,Level4

Electrical Fast Pulse Group Immunity

GB/T 17626.4-2008,Level4

ElectroSTatic Discharge

GB/T 17626.2-2006,Level4

PMS

GB/T 17626.8-2006,Level4