Huazheng Electric Manufacturing HZ-1521, Руководство пользователя

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2
Before work, users can make task plans on the HZ-1521 , which is beneficial to orderly
working. Calibration plan can be downloaded via PEC management software through serial port
into the instrument.
●
Input : the instrument supports for Chinese characters, English case and Arabic number input.
● Harmonic measurement : shows the content of 2 nd ~ 51 st harmonics in the form of histogram.
● Counter : check the accuracy of meter counter.
● U disk : upload and download data by connecting U disk
● Timing
: calibrate the instrument time
● Waveform display
: shows U and I waveforms directly.
● User functionality
: view the uploaded user information and do corresponding tests.
2.2 Main characteristics

With the basic functions of portable calibration device; its own simulated load is used for
calibration of energy meter at the scene without load, and the accuracy is up to 0.1%;

It can measure the voltage and current of 2 nd ~ 51st harmonics, and all of the harmonic data
can be stored;

Settings, errors, electrical parameters and voltage and current waveforms are displayed on
one screen;

All measurement data of at least 6000 meters can be stored, including working parameters,
convenient for future analysis;

Support for U disk, and calibration data can be downloaded by U disk and serial port
upgrade software;

It can communicate with PC, and it is very convenient to connect with the original database
and management system. It can match the
PEC energy meter management system
software
to realize paperless office;

With high brightness, high resolution, and high-resolution 4.4-inch (320 * 240) TFT color LCD
display;

Chinese characters, English case and Arabic numbers can be input;

A wide range of operating power supply AC 90 ~ 265V;

The system adopts a high speed and high precision digital multiplier, and all parameters can
be corrected by software;

The instrument has no potentiometer, and can completely prevent the instrument’s error
change due to external causes such as transportation, thus greatly improving the stability
and reliability of the system;

A domestic pioneering digital true reactive power measurement technology is adopted for the