I. Performance Features:

1. Featuring microcomputer control and at least 16 touch switches on the panel, it conveniently completes various test functions, includes self-check and error reporting features for easy inspection and maintenance.

2. Comprehensive self-inspection and self-protection features ensure that the circuit can quickly disconnect the output and emit both sound and light alerts upon overload or excessive range, thereby reducing unnecessary losses due to incorrect operation.

3. With intelligence, a single button press is all it takes to measure all parameters of a general relay and automatically print out all data.

4. The display features functional units, allowing for a clear reflection of the working status on the screen.

All printed data is in Chinese characters, such as "Closing Voltage," "Open-Circuit Voltage," "Normal Open Closing Time," etc. (Note: The display uses a seven-segment display and does not have printing capabilities.)

II. Technical Specifications:

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

AC Current Output

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. The overload protection operates at 300A.

At 0-200A and 0-600A, the open circuit voltage is 10V.

2. Direct Current Voltage Output:

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

Overload protection action current: 2.1A ±5%.

Direct Current Output:

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

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

During 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

When 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:

Extended 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%