Three-phase Digital Multimeter AC LED display KWH measuring multimeters

RH-D Series Multi-function Monitoring Meter

Performance Characteristics

1.High precision measurement of three phase voltage, three phase current, active power, reactive power, apparent power, power factor, frequency of electric parameters

2.Forward and reverse active or reactive energy measurement

3.Division of electric energy metering, time-sharing power timing meter reading

4.Measurement of three-phase voltage, three-phase current total harmonic distortion (THD), 2-31 odd harmonic component

5.Provide the digital tube display, local data query

6.Menu button intuitive, simple operation

7.Current, voltage gain programmable

8.Provide multiple circuit leakage current monitoring

9.provide multiple loop control nodes, can be used for the alarm, trip control

10.Support for fire control, remote cut off the fault circuit

11.Support for RS-485 communication, Modubus-RTU protocol

12.Support for switching input, output, analog quantity transmitting output

13.Convenient installation, wiring is simple, small engineering quantity

14.A wide range of AC/DC power supply: AC/DC 80-270V

15.To be completed by SCADA, PLC in a variety of communications software networking

Technical Index

Accuracy of measurement

♦Voltage level 0.5

♦Current level 0.5

♦Active power 0.5

♦Reactive power level 0.5

♦Power factor 0.5

♦Frequency ±0.02Hz

♦Active electric energy class 0.5s or class 0.2s

♦Reactive energy grade 1 or grade 2

Signal input

♦Connection mode of four phase three wire, three phase three line

♦Rated voltage of AC 57.7V, AC 100V, AC 220V, AC 380V

♦Rated current AC1A,AC5A

♦Overload voltage:1.2 times ( Continued ), 2 times / second ( instantaneous )

♦Power consumption voltage: <1VA/ phase,current:<0.4VA/phase

♦Impedance >300KΩ, current: <20mΩ

♦The frequency of 45~65Hz

Auxiliary power supply

♦Working range AC/DC 80~270V

♦Power consumption <4VA

Function module

♦Communication interface 1 way RS-485 communication, Modbus-RTU protocol

♦Baud rate: 1200~9600bps, the default 2400bps

♦Switch input support 4 stem node input

♦The switch output support 3 relay output, capacity: AC 250V/5A, DC 30V/5A

♦Transmission output support 3 analog output: 0/4~20mA or 0~5/10V

♦Electric energy pulse output support 2 electric energy pulse output,constant:8000imp/KWh(Kvarh)

Section of Specification