WT-T200B Dual-Clamp Digital Phase Volt-Ampere Meter
The WT-T200B is a multifunctional, high-precision, and intelligent handheld instrument specifically designed for field measurement of electrical parameters, including voltage, current, phase, frequency, active power, and load impedance.
The device features power supply circuit waveform measurement, CT (Current Transformer) circuit impedance detection, and energy meter wiring status analysis. During equipment maintenance, it can distinguish between inductive and capacitive loads, identify transformer vector groups, test secondary circuits and busbar differential protection systems, and accurately read the phase relationships between different CT groups in differential protection schemes.
Functional Features
- True RMS Measurement: Measures True RMS for voltage (1V–550V) and current (5mA–12A). Features fully automatic range switching, eliminating the need for manual adjustment based on signal amplitude.
- Millivolt Measurement: Specialized U2 circuit for small AC voltage measurements, capable of detecting levels as low as 1mV.
- Wiring & Impedance Analysis: Measures phase sequence for 3P3W and 3P4W systems. Provides online impedance measurement and waveform display to quickly analyze energy meter wiring issues and assist in identifying power theft.
- Harmonic Analysis: Integrated harmonic analysis function to measure voltage/current waveforms and Total Harmonic Distortion (THD).
- Advanced Connectivity: Equipped with a USB interface and wireless communication (optional Wi-Fi and Bluetooth) for data upload, analysis, and expanded monitoring via smartphones or terminals.
- One-Key Bidirectional Display: Features a screen-flip function that allows the display to remain upright even when the device is held upside down, ensuring easy reading in cramped spaces.
- Dual-Circuit Isolation: Independent voltage isolation for dual-circuit measurements, suitable for testing non-common-ground circuits.
- Intelligent Interface: All-in-one screen display for all electrical parameters. Features an “Adaptive Mode”—what you see is what you measure—allowing for plug-and-play operation without a learning curve.
- High Sensitivity: Exceptional resolution with 0.1mA for current, 0.1mV for voltage, and 0.1° for phase.
- Automatic Identification: Directly measures any voltage, current, or phase without changing wiring or switching gears; the system automatically identifies and measures RMS values or phase angles.
- Power Management: Uses a standard Type-C charging interface. Low-power design ensures a continuous operating time of no less than 15 hours on a full charge.
