The LDHL-100P Loop resistance tester integrates high-frequency switching power supply technology and digital circuit technology, designed specifically for precise measurement of circuit resistance in high-voltage switchgear. The instrument adopts a high current output of 100A DC (or 50A optional) to effectively penetrate the contact oxide film, ensuring the authenticity and reliability of the test results. The large LCD screen equipped with it supports a Chinese operation interface, and has functions such as data storage, print output, time setting, and USB communication, meeting the on-site testing needs of power systems, power supply departments, and high-voltage switch manufacturers. This instrument is compact in size and easy to carry, making it an ideal tool for maintenance and quality inspection of high-voltage equipment.
| Measurement range | 0～2999.9μΩ |
| Resolution | 0~99.99, 0.01μΩ; 100.0~2999.9, 0.1μΩ |
| Measured current | DC 50A, 100A, fixed output |
| Accuracy | ±(0.5% rd+2d) |
| Continuous working time | 5s~599s |
| Display | LCD |
| Communication mode | USB |
| Power supply | AC220V±10% 50Hz |
| Power of the whole machine | 600W |
| Maximum storage record | 200 |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
Adopting high-frequency switching power supply technology, supporting 100A/50A dual level DC output, it can work continuously for a long time, breaking through the limitations of traditional pulse current and completely eliminating the influence of contact surface oxide film.
Dual high-speed 16 bit ∑ - Δ AD sampling, combined with digital signal processing technology, with a resolution of 0.01 μ Ω, strong anti-interference ability, stable readings, excellent repeatability, and accuracy of ± (0.5% rd+2d).
Automatic range switching and over temperature protection function ensure safety and accuracy;
Rotating the mouse for control, supporting flexible parameter settings (testing time adjustable from 5s to 599s);
The data storage capacity reaches 200, supporting time annotation and historical record query.
USB communication interface, capable of connecting to a computer to generate Excel reports and print test reports;
Real time display of test current, resistance value, and time, supporting one click operation of "retest", "save", and "print".
