I. Performance Features:

The machine is controlled by a microcomputer, featuring at least 16 touch switches on the panel for convenient completion of various testing functions. It includes self-check and error reporting capabilities, facilitating inspection and maintenance.

2. Comprehensive self-inspection and self-protection features ensure that the circuit can quickly cut off the output and emit sound and light alerts during overload or excessive range, reducing unnecessary losses caused by incorrect operation.

3. Intelligent operation: simply press a button to measure all parameters of a general relay and automatically print all data.

4. The display features a functional unit, clearly reflecting the working status from the screen.

All printed data is in Chinese characters, such as "Closing Voltage," "Open Voltage," and "Normal Open Closing Time," etc. (Note: The display is digital, without printing functionality).

Section II: Technical Specifications:

1. Output Voltage Range: Continuously adjustable from 0 to 500V, high output capacity of 6000VA, over-range protection at 500V, and an accuracy of ±0.25%.

AC Output Current

0-50A, 0-100A, 0-200A, 0-600A, continuously adjustable.

At 0-50A, the open-circuit voltage is 5V.

At 0-100A, the open-circuit voltage is 10V. Overload protection trips at 300A.

0-200A, 0-600A, open circuit voltage 10V.

2. Direct Current Voltage Output:

0-320V continuous adjustable, high current 2A, over-range protection at 320V

Overload protection action current: 2.1A ±5%.

3. Direct Current Output:

0-200mA, 0-5A, 0-20A continuous adjustable, with an accuracy of ±0.25%.

At 0-200mA, the open-circuit voltage is 48V, and the overload protection trips at 230mA.

At 0-5A, the open circuit voltage is 24V, and the overload protection trips at 5.2A.

At 0-20A, the open-circuit voltage is 36V.

4. Fixed Direct Current Voltage Output

Outputting 110V or 220V individually, the current can reach 2.5A, but with AC voltage and current,

When outputting DC voltage simultaneously, the total capacity cannot exceed 600VA.

5. Digital Millisecond Stopwatch:

Wide Range: 999 seconds (Note: 99.99S)

Resolution: 0.1 millisecond

Accuracy: 0.1% ± 1 character

6. Instrument Accuracy:

Utilizing a 5.5-bit A/D converter, with an accuracy of 0.05% reading ±1 digit.

7. Overall Measurement Accuracy: ≤0.25%