■ Product overview

The digital double clamp phase voltammeter is a high-precision, low-cost, portable handheld, dual-channel input measuring instrument designed for field measurement of voltage, current and phase. With this meter, you can easily measure the phases between UU, II and UI on site, distinguish the phase sequence of inductive, capacitive circuits and three-phase voltage, detect the wiring group of the transformer, and test the secondary circuit and bus differential protection system , Read the phase relationship between the CTs of each group of differential protection, and check whether the wiring of the watt-hour meter is correct or not. The current under test is input by the conversion method of clamp current transformer, so there is no need to disconnect the line under test during measurement. When measuring the phase between U1-U2, the two input circuits are completely insulated and isolated, so it completely avoids the possible short circuit of the tested circuit caused by miswiring, which may burn the measuring instrument. The display adopts a high-contrast LCD screen, and the screen angle can be freely switched about 70° to obtain the best visual effect.

■ Technical parameters

▲ Waveform of measured signal: sine wave β=0.02

▲ Frequency of tested signal: (50±0.2) Hz

▲ Position of the tested current-carrying wire in the jaws: any

▲ Range of measured signal amplitude when measuring phase: 100V ~ 220V, 0.5A ~ 1.5A

▲ Display digits: 3½

▲ Sampling rate: 3 times per second

▲ Ambient temperature: (23±5)℃

▲Environmental humidity: (45～75)% RH

▲ Power supply: single 9V stacked battery, power supply current is less than 5mA

▲ Dimensions: 186mm×86mm×33mm