Major Tech AC Power True RMS Clamp Meter (MT790)
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The Story
The Major Tech MT790 is a versatile True RMS clamp meter that combines power meter, multimeter, and AC voltage detector functions in one tool. It measures AC current up to 1000A, AC voltage to 750V, and provides comprehensive power analysis including true power, apparent power, reactive power, and active energy for both single-phase and balanced three-phase systems. With a large dual LCD display, data logging for up to 99 records, and USB PC connectivity, it's ideal for professional electricians and maintenance technicians.
add_circle The Upside
- check Comprehensive power measurement capabilities for single and three-phase systems
- check Includes USB interface and software for PC data logging and analysis
- check Large jaw opening (55mm) accommodates thick cables
remove_circle The Downside
- close Relatively heavy at 631g compared to basic clamp meters
- close Accuracy specifications are moderate (e.g., ±2% for current) for high-end applications
- close Temperature measurement accuracy is limited (±5°C)
Specifications & features
Key features
- check_circle True RMS measurements for AC current and voltage
- check_circle Measures up to 1000A AC and 750V AC
- check_circle Power analysis: kW, kVA, kVAR, kWh, power factor, phase angle
- check_circle Data logging with manual store/recall of 99 logs and USB PC interface
- check_circle Non-contact voltage (NCV) detection and large dual LCD display with bargraph
Specifications
AC Current Accuracy
±(2.0% +5)
AC Current Range
0.1A - 1000A
Active Power Range
30.00kW - 750.0kW
AC Voltage Accuracy
±(1.2% +5)
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