Portable Handheld Transformer Winding Resistance Tester
This high-accuracy, battery-powered DC micro-ohmmeter is designed for measuring DC resistance in small and medium-sized transformers, generators, motors, and mutual inductors. Featuring multiple current gears to accommodate various measurement requirements, the instrument comes standard with lithium batteries for convenient field operation.
Key Features
- High-resolution 65K true color seven-inch touch screen with Chinese/English interface switching
- Clear display visibility even under strong lighting conditions
- Powered by internal battery or power adapter for outdoor operation
- Copper and aluminum temperature conversion function for resistance value comparison
- Digital battery management with remaining power display and alarm system
- Non-power-off data storage with perpetual calendar (stores 1000 test data sets)
- USB interface and printer expansion interface with optional external micro printer
- Comprehensive protection features including discharge sound alarm and voltage reverse connection protection
- 10A measurement capability for large-capacity distribution transformer testing
- Optional Bluetooth module for Android device connectivity and smart management
- Direct load switching during measurement with automatic data refresh
Technical Specifications
| Test Current |
Measuring Range |
Accuracy |
| <20mA |
100Ω-50KΩ |
±(0.2%+2) |
| 40mA |
1Ω-200Ω |
| 200mA |
100mΩ-50Ω |
| 1A |
10mΩ-10Ω |
| 3A |
5mΩ-3Ω |
| 10A |
0.5mΩ-0.2Ω |
| Minimum Resolution |
0.1μΩ |
| Operation Method |
Touch screen operation |
| Dimensions |
Host: 252*160*65(mm) | Outer box: 425*335*210(mm) |
| Weight |
Host: 2KG | Outer box: 8KG |
| Battery Specifications |
14.8V 5200mAh |
| Test Lead Length |
Standard 5 meters (custom lengths available) |