Huazheng Electric Manufacturing HZ-1521, User Manual

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3
system;

The accuracy of electric energy is ensured within the temperature range of - 20
℃
~ + 40
℃
;

With 0.3- magnitude 50A clamp optional (including opening and closing non-repeatability
error, contact error, interference error of outside magnetic field and angle error, etc.).

With 50A, 100A, 500A and 1000A clamps optional, used for direct measurement and low
voltage measurement of comprehensive errors;

Automatic voltage shift 30 ~ 265V, and 1-10A direct current input;

With high precision plastic mold chassis design, lightweight and beautiful;
2.3 Operating and using points for attention
Warning: as this instrument belongs to electric working equipment, for the sake of your
safety, please abide by the national regulations on production safety, and operate strictly
according to the field calibration procedures of electric power metering devices.

Connect the power supply properly (Note: the power supply range is AC90V ~ 265V);

Please read this manual before operating to set the measuring parameters correctly;

Don't clip the pulse line clip to the energy meter’s voltage terminal;

Don't insert the voltage terminal onto the current terminal;

Don't insert the current terminal onto the voltage terminal;

Choose the current range correctly, and the current range generally does not exceed 220%
of the rating;

Each clamp meter has positive and negative ends: "+" is the current input and "-" is the
current output;

The clamp meters of different instruments are not used interchangeably, or else it will affect
the accuracy of measurement;

The instrument belongs to a precision meter, so please handle with care.

The jaw of the clamp meter should be kept clean, because oil dirt and scale may affect the
measuring accuracy;

Using corrosive organic solvents to wipe the instrument is strictly prohibited;
2.4 Operating process of the instrument
The instrument is used in strict accordance with the operating processes.
Open the instrument power supply →connect the test line at the instrument side → connect
the test line and clamp meter on the energy meter end → set the test parameters → check
→dismantle the test line at the energy meter side → shut down the instrument→ dismantle the
test line at the instrument side.
Note: the clamp meter "+" is the inlet direction of current and the "-" is the outlet