ETCR4300 Three-phase Digital Phase Voltmeter



Product Overview

Three-phase Digital Phase Voltmeter also name intelligent three phase digital phase voltmeter, multifunction three phase digital phase voltmeter and three clamp digital phase voltmeter etc. Suitable for electric power, petrochemical, metallurgy, railway, industrial and mining enterprises, scientific research institutions, measurement departments. It is especially suitable for electric energy billing system and relay protection system.


Product Features

◆ Intelligent design, reduce the complexity of operation, reduce the possibility of misoperation, with high precision, high stability, low power consumption, easy to use and other advantages.

◆  Small sharp clamp is suitable for flat cable dense site.

◆  Adopt voltage transformer and current clamp to input, no high voltage inside the meter, complete isolation between 3 input channels, safe and reliable.

◆  Adopt 2.8 inch LCD color screen ,the dynamic vector diagram indication, clear and obvious.

◆ The test wire adopts special electric power cable, all the plug of spring rod and crocodile clip have insulated protection. The instrument is insulated with non-slip sheath. 

◆ In the case of the tested circuit is not open-loop, Measuring three-phase AC voltage, current, phase between voltages, phase between currents, phase, frequency, phase sequence, active power, reactive power, apparent power, and power factor between voltage and current.

◆  Discriminate the transformer wiring group, inductive and capacitive circuits

◆ Test the secondary circuit and the busbar protection system, read the phase relationship between the CT of the differential protection groups

◆  Check the wiring of the meter for correctness, and repair the line equipment

◆  With USB interface, Data storage: 500 groups

Product Display

Technical Specifications


ETCR4300 Three-phase Digital Phase Voltmeter

Clamp Size




Range, Resolution, Error

( reference conditions)

Voltage Range: AC 0.00V600V         Resolution: AC 0.01V         Error: ±(0.5% range)

Current Range: AC 0.0mA20.0A        Resolution: AC 0.1mA         Error:±(0.5% range)

Phase Range: 0.0°360.0°              Resolution: 0.1°              Error: ±1°

Frequency Range: 45.00Hz65.00Hz     Resolution:0.01Hz           Error:±(1.0% range)

Active power Range:0.0W12kW         Resolution:0.1W             Error:±(1.0% range)

Reactive power Range:0.0var12kvar     Resolution:0.1var            Error:±(1.0% range)

Apparent power Range: 0.0VA12kVA     Resolution:0.1VA            Error:±(1.0% range)

Power factor Range: -1+1               Resolution: 0.001            Error: ±0.03

Current vector and range: 0mA60.0A     Resolution: 1mA

Power Supply

DC9V Alkaline battery (LR6 1.5V AA×6)

Meter Dimension


Detection Rate

About 2 second/times

Data Storage

500 groups

Data Hold

In testing, press HOLD key to hold the dataHD” symbol display

Phase Sequence

Positive phase: U1, U2, U3 or I1, I2, I3 cursors flash from left to right

Invert phase: U1, U2, U3 or I1, I2, I3 cursor flash from right to left

Communication Interface

USB interface, store data can be upload to computer, convenient to analyze management data

Cable Length

Test wire length: 1.5M; Current clamp Length: 2M

Auto Shut Down

15 minutes after boot up, the meter shuts down automatically without any operation

Voltage Detection

When the battery voltage is lower than 7.2V, low battery symbol appears, reminding replace battery 

Input Impedance

Test voltage input impedance: 1MΩ

Working Current

Max power consumption of open backlight: 135mA, battery power can continues working 6 hours

Meter power consumption of close backlight:90mA, battery power can continues working 9 hours


Host: 1PCS; Current Clamp: 3PCS; Test wire: 4PCS; USB communication cable: 1PCS; Software CD:1COPY; Meter case: 1PCS

Application testing

Test three-phase four-wire voltage, current, phase, phase sequence, frequency, power, power factor, etc

Test three-phase three-wire voltage, current, phase, phase sequence, frequency, power, power factor, etc