ETCR7300 series Large Caliber Three Phase Clamp Power Meter is a multi-functional, digital and intelligent instrument, which is specially designed and manufactured to measuring for the field measurement of three-phase ac voltage, current, leakage current, phase between voltage, phase between voltage and current, frequency, phase sequence, electric energy, active power, reactive power, apparent power, power factor and total power and so on, the clamp with large caliber (80mmX80mm: can clamp an test φ80mm cable, or 96mmX4mm flat steel grounding leads), convenient to use, fully compatible with the functions of large caliber clamp leakage current meter and micro-power clamp meter, also can be used to distinguish transformer connection group, sensibility,capacity circuit, reading out the phase relationship between with every groups differential protection CT , check the watt hour meter wiring correctly or not, maintenance line equipment, etc., providing a safe, accurate and convenient new type power meter to the electricity inspection personnel.

ETCR7300 series Large Caliber Three Phase Clamp Power Meter iron core select and make with special alloy, adopts magnetic shielding technology, almost unaffected by the external magnetic field, ensures long time continuous measurement of strong anti-interference ability, ensure high accuracy, high stability and high reliability. The meter with the RS232interface, can storage data 200 groups, system software can upload storage data to computer, realize online real-time monitoring and historical query, dynamic display, with historical data reading, saving, printing and other functions. The instrument also has backlight function and data retention function, which is a necessary tool for electrical safety testing.