Darui Electric recommends
I. Product Parameters
1. Varistor Measurement
| Technical Indicators | Measurement Range | Working Error | Test Conditions |
| Initial Action Voltage U1mA | 0～1700V | ≤±2％±1d | 1mA±5μA |
| Leakage Current I0.75U1mA | 0～199.9μA | ≤±2μA±1d |
0.75U1mA ≤±2％±1d |
2. Discharge Tube Measurement
| Technical Indicators | Measurement Range | Working Error | Test Conditions |
| DC Breakdown Voltage Vsdc | 20～1700V | ≤±2％±1d |
Voltage Rise Rate 100V/S±10% |
3. Other Indicators
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: DC12V dedicated power supply (core wire + pole).
Power Consumption: 8W.
Instrument Dimensions: 208mm×190mm×78mm.
Weight: ≤1kg.
II. Product Features
1. Suitable for measuring DC parameters of overvoltage protection components such as zinc oxide arresters (varistors), metal ceramic two-electrode and three-electrode discharge tubes. It can also be used as a stabilized voltage 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-check 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 issued for over-range tests during the measurement process, 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.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
