1. Suitable for measuring DC parameters of overvoltage protection components such as zinc oxide arresters (varistors), metal-ceramic two- and three-electrode discharge tubes, and vacuum arresters. It can also be used as a voltage regulator or constant current power supply for other applications.
2. Has high-voltage short-circuit protection, overcurrent protection, high-voltage presetting, range adjustment and other functions. The high voltage self-discharge time is less than 0.5 seconds.
3. Has self-test function.
4. Measurement data is displayed by a three-and-a-half digit LCD with high accuracy and good reliability.
5. During measurement, the range can be preset, and an audible alarm is given for over-range tests, suitable for component grouping and inspection discrimination.
6. Selecting continuous measurement allows uninterrupted testing of batch samples.
7. Simple panel functions, easy to operate.
8. Light weight, easy to carry.
Technical Specifications
1. Varistor Measurement
Technical Specifications
Measurement Range
Working Error
Test Conditions
Initial Action Voltage U1mA
0~1999V
≤±1%±1d
1mA±5μA
Leakage Current I0.75U1mA
0~199.9μA
≤±2μA±1d
0.75U1mA ≤±1%±1d
2. Discharge Tube Measurement
Technical Specifications
Measurement Range
Working Error
Test Conditions
DC Breakdown Voltage Vsdc
5~1999V
≤±1%±1d
Voltage rise rate 100V/S±10%
3. Other Specifications
Insulation Resistance: 6MΩ (500V)
Withstand Voltage: AC 1.5kV 50HZ 1min
Operating Temperature and Humidity: 0~+40℃, ≤85%RH
Storage Temperature and Humidity: -10℃~+50℃, ≤90%RH
Power Supply: AC220V, 50Hz, DC 12V 0.5A (center positive)
Power Consumption: 8W
Instrument Dimensions: 208mm×190mm×78mm
Weight: ≤1kg
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.