Loop Resistance Tester Product Manual


I. Purpose

       YTC5501-100Loop Resistance Tester is suitable for high-precision measurement of contact resistance (loop resistance) in high-voltage switches, and is also applicable to other situations requiring high current and micro-resistance measurement.

II. Performance Features

       High Current: Adopting new power supply technology, it can continuously output high current for a long time, overcoming the drawback of instantaneous current in pulse power supplies, effectively breaking through the oxide film on switch contacts to obtain good test results.

       Strong Anti-interference Capability: Under severe interference conditions, the last digit of the LCD can remain stable within ±1 digit, ensuring stable readings and good repeatability.

       Long Service Life: All high-precision resistors are used to effectively eliminate the influence of ambient temperature on measurement results, and the use of military-grade connectors enhances vibration resistance.

       Portability: Small size and light weight.

III. Technical Specifications

       1. Measurement Range: 1～1999μΩ

       2. Resolution: 1μΩ

       3. Test Current: DC 100A 

       4. Measurement Accuracy: 0.5%

       5. Display Mode: Current: 3.5-digit LCD

       6. Resistance: 3.5-digit LCD

       7. Working Power Supply: AC220V±10%  50Hz

       8. Working Environment: Temperature -10℃～40℃  

         Humidity: ≤80 %RH

       9. Volume: 300×270×200 mm3

      10. Weight: 5Kg (excluding accessories)