YDZ-20A DC resistance quick tester user manual, which introduces the instrument overview, main technical indicators, panel and back panel introduction and instructions, operating methods, data viewing and processing, precautions, transportation, storage, unpacking and inspection, after-sales service and other contents.
This manual introduces the YDZ-20A DC resistance quick tester, describing its purpose, safety requirements, and the components of the front and back panels. It emphasizes proper grounding, use of the correct power cable, and precautions to avoid electric shock or fire.
The guide details the preparation, measurement procedure, data viewing, and storage functions, as well as specifications such as test current, accuracy, and environmental limits. It also covers transport, storage, unboxing, and after‑sales service information. This manual is written in Chinese.
| Test Current | 10 A / 20 A |
|---|---|
| Measurement Accuracy | ±0.2 % (full scale) |
| Data Storage Capacity | 255 records |
| Display | LCD, resistance shown with 4½ digits |
| Maximum Resolution | 0.1 µΩ |
| Power Supply | AC 220 V ±10 % / 50 Hz ±2 Hz |
| Maximum Power Consumption | 300 W |
| Operating Environment | Temperature 0 °C – 40 °C, Relative humidity 30 % – 80 % |
| Dimensions | 200 mm × 400 mm × 280 mm |
| Weight | 6 kg (with accessories) |
Press the “全部” key to delete all data, the “当前” key to delete the currently displayed data, or the “退出” key to return to the view screen.
After connecting power and test leads, select the desired test current, then press the “测量” key to begin the measurement process.