ETCR EM4400 Multifunctional Three Phase Digital Phase Voltmeter, also known as three-phase phase voltammeter, three-phase phase voltammeter, handheld phase tester, portable phase meter, vector diagram analyzer,, is a touch screen multi-function instrument that can measure voltage amplitude, current amplitude, voltage phase, current phase, frequency, power, active power, reactive power, harmonics, and can display vector diagrams of three-phase voltage and three-phase current in real time.In addition, you can judge the three-phase phase sequence, inductive, and capacitive circuits, test the secondary circuit, check whether the wiring of the meter is correct, and overhaul the circuit equipment.This product is simple to operate, easy to use, fast measurement, stable, and reliable results.It is widely used in electric power, petrochemical, metallurgy, railway, meteorological and other units.

ETCR EM4400 Multifunctional Three Phase Digital Phase Voltmeter consists of a host, a current clamp, and a voltage test line.It adopts a 5-inch touch color screen, a Chinese interface, direct functions, automatic measurement, easy and fast operation, accurate and reliable. At the same time, the instrument adopts a large-capacity rechargeable lithium battery, with data storage, data access, automatic shutdown, USB data upload and export functions.Since this instrument uses a special metering chip, this instrument has very high-precision electrical parameter measurement, can display changes in the parameters to be tested in real time, and has the function of saving data with one key.

1. High measurement accuracy, voltage and current accuracy of 0.3; phase accuracy of ±0.3°；
2. Single-phase, two-phase, and three-phase measurement modes are available; three-phase four-wire system and three-phase three-wire system measurement modes；
3. Analyze and measure the harmonics of voltage and current within 21 times；
4. The surveying personnel only need to connect the wiring to operate, the instrument automatically measures, and the data is updated in real time to facilitate on-site analysis.；
5. The instrument adopts complete isolation technology to avoid safety accidents.；
6. Touch color screen, Chinese interface, easy and fast operation.
7. Storage function, 1000 sets of data storage.
8. USB communication interface.
9. Rechargeable lithium battery.

1. Range & Basic Error

2.Technical Specifications