DC resistance testing of transformer windings is an indispensable test item for transformers after handover, overhaul and change of tap switches. In general, measuring the DC resistance of transformer windings and high-power inductor devices using traditional methods (bridge method and voltage drop method) is a time-consuming and labor-intensive task. In order to change this situation, shorten the measurement time and reduce the workload of testers, the company has developed a DC resistance tester. It adopts new power supply technology, which has fast measurement, small size, easy use, high measurement accuracy, etc.

Product Features

1. Rechargeable battery pack is included, and no AC power is required for on-site testing, making it easy to use; 

2. The output charging current can reach 2A, and the test speed is fast; 

3. The resistance measurement range is 1μΩ-2KΩ, with a wide range; 

4. Use high-quality components imported from abroad, and design multiple anti-interference programs with high accuracy and good repeatability of measurement results; 

5. LCD display method, adapt to various working environments; 

Technical parameters

1. Conditions of use:

    Ambient temperature: 0℃～40℃

    Relative humidity: ≤85%RH

2. Measurement range:

    1mΩ~20mΩ;

    20~200mΩ;

    0.2～2Ω;

    2～20Ω;

    20~200Ω;

    200Ω～2kΩ

3. Measurement accuracy: Level 0.2

4. Resolution: 1μΩ

5. Constant flow source:

    2A (1uΩ~2Ω);

    0.2A(2Ω～200Ω);

    0.02A (20Ω~2000Ω)

6. Operating voltage

    DC 11V~14V AC 220V.

7. Power consumption: ≤15W

8. Dimension: 335×275×175mm

9. Weight: 2.8kg 

Product alias

DC resistance speed measuring instrument, transformer DC resistance tester, transformer direct resistance speed measuring instrument, transformer direct resistance fast tester, inductive load DC resistance speed measuring instrument, inductive load DC resistance fast tester, inductive load DC resistance tester