Portable Battery Powered Micro Ohmmeter Transformer Coil DC Resistance Test Instrument
The DC Winding Resistance Tester is an essential instrument for transformer testing, including semi-finished product testing, finished product testing, installation commissioning, and electrical preventive maintenance testing. This handheld device effectively identifies manufacturing defects and operational hazards such as poor welding, loose connections, missing units, wire breaks, and other potential issues in transformer coils.
Designed to meet rapid measurement requirements, our DC Winding Resistance Tester incorporates powerful new technology with compact size, lightweight design, and high output current capabilities. Controlled by a single-chip microcomputer, the instrument features high automation levels, automatic discharge functions, and delivers high-precision testing with straightforward operation for fast transformer measurements.
Basic Info.
- High-speed single-chip microcomputer control system
- Advanced power supply technology with multiple current ranges and wide measurement scope
- Automatic current selection based on load requirements
- Comprehensive protection against counter EMF impacts for enhanced reliability
- Audible discharge alarm with clear discharge indicators to prevent misuse
- Rapid response speed for efficient testing
- Intelligent power management operating in minimal power state
- High-resolution 320*240 dot matrix 65K true color LCD display
- Built-in perpetual calendar clock with power-down storage for 1000 test datasets
- RS232 and USB interfaces for computer communication and USB storage
- Integrated panel micro-printer for immediate result printing
| Parameter | Specification | Remarks |
|---|---|---|
| Test Current | 5A, 10A, 20A, 50A, 100A | |
| Measurement Range | 50μΩ~100mΩ (100A) 100μΩ~400mΩ (50A) 200μΩ~1Ω (20A) 500μΩ~2Ω (10A) 1mΩ~4Ω (5A) |
Accuracy: ± (0.2% + 2 bytes) |
| Resolution | 0.1μΩ | |
| Display | LCD | 4 significant digits |
| Data Storage | 1000 Sets | |
| Operating Temperature | 0℃~40℃ | <90% RH, No Dew |
| Power Supply | AC 220V±10V, 50Hz±1 Hz | Fuse 10A |
| Power Consumption | 1000W | |
| Dimensions | 440*245*395 (mm) | |
| Weight | Host: 19.8KG Cable Box: 7.5KG |
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