Multifunction calibrator HZ-3521A

powerenergypower meter

The HZ-3521A Three-Phase Watt-Hour Meter Field Calibrator is specifically designed for on-site inspection of high-voltage power grid metering devices and fault detection. The instrument utilizes high-precision internal transformers and clamp-type transformers for sampling, allowing operators to quickly, safely, and reliably measure meter recording errors and wiring faults. It provides an effective tool for power system inspectors to detect electricity theft, identify metering device failures, and ensure accurate measurement, ultimately helping to recover lost electricity. The HZ-3521A Three-Phase Watt-Hour Meter Field Calibrator is equipped with a high-performance ARM processor running at a main frequency of 168 MHz, and features 128 MB of memory, expandable with a 4 GB memory card. The instrument is equipped with a 7-inch HD color touch screen that utilizes the emWin display interface, offering a user-friendly and intuitive interface. It operates entirely via the touch screen, eliminating the need for a keyboard. Additionally, the instrument supports a file system that allows seamless integration with a computer. Functions and Features 1 .Error Detection Without Power Interruption Without changing the wiring of the metering circuit, the instrument can detect the error of the metering device to determine whether the device is faulty, even in the absence of a power failure. 2 .Comprehensive Electrical Parameter Measurement The instrument can measure a wide range of electrical parameters, including voltage, current, power, phase angle, power factor, frequency, and more, allowing for accurate diagnosis of faults in the metering device circuit.