Product parameters:
Our breakthrough transformer DC resistance tester features a high-capacity lithium battery and compact design for portability. It delivers rapid, high-accuracy measurements for both inductive components (transformers, reactors) and resistive samples (conductors, switch contacts).
Technical parameters:
Direct resistance test | |||
Current gear | Measuring range | Current gear | Measuring range |
10A | 500uΩ~200mΩ | 100mA | 10Ω~200Ω |
5A | 10mΩ~1Ω | 10mA | 50Ω~2kΩ |
1A | 100mΩ~20Ω | 1mA | 500Ω~50kΩ |
Technical index | |||
Accuracy | ±(Reading x 0.2%+2 words) | Maximum resolution | 0.1uΩ |
Conditions of use and appearance | |||
Working power supply | Built-in lithium battery or external charger, charger input 100 ~ 240VAC, 50Hz/60Hz | ||
Charging voltage | 16.8V | Charging current | ≤2A |
Charging time | About 4 hours | Service time | More than 8 hours |
Main engine weight | 3.6kg(excluding test line) | Main engine size | 325×225×125mm3 |
Service temperature | -10℃~50℃ | Relative humidity | ≤90%, no condensation |
Feature:
1. Dual Power Supply
Lithium battery or 220V AC adaptive input. Single charge supports 500+ transformer DC resistance tests.
2. Intelligent 10A Output
selectable currents (≤10A/25V) with auto-ranging for rapid testing.
3. Wide Range & High Accuracy
500μΩ – 50kΩ ±0.2% full-scale.
4. Resistance-Temperature Conversion
Built-in RT calculation for direct temperature analysis.
5. Comprehensive Safety Protections
Back-EMF / Open-circuit / Power-loss / Over-temperature protection with alarms.
6. Sunlight-Readable Display
5.6" industrial-grade color LCD (1000-nit brightness).
7. Printer-Ready
Supports external printers for instant reports.
8. Flexible Data Storage
Local memory + USB export capabilities.
Precautions:
Test the no-load voltage regulating winding, and it is not allowed to switch the no-load tap changer during the testing process or before discharging the power.
During the testing or discharging process, it is not allowed to remove the testing line and cut off the power switch.
During the testing of the transformer, the winding on the unmeasured side of the transformer must be open circuited.
