▍ brief 　↴

YLHL series high-precision circuit resistance testerIt is designed based on the power implementation standard DL/T845.4-2004 of the People's Republic of China, using a combination of high-frequency switching power supply technology and digital circuit technology. It is suitable for measuring the circuit resistance of switch control equipment. The test current adopts the recommended DC 100A and 200A by the national standard. The circuit resistance can be directly measured under the current of 100A and 200A, and the test results are displayed on a large LCD screen with functions such as data storage, output printing, and time setting. The instrument measures accurately and has stable performance, meeting the requirements of on-site high-voltage switch maintenance and high-voltage switch factory circuit resistance testing for power and supply departments.

▍ Product functions and features 　↴

•Test current is highAdopting new switching power supply technology, it can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supplies. It can effectively penetrate the oxide film of switch contacts and obtain good test results
•High stabilityUnder severe interference conditions, the last digit data of the LCD screen can be read stably within a range of ± 5 words, with good repeatability
•High precisionUsing dual channel high-speed 24 bit ∑ - Δ AD sampling and digital signal processing technology, it has a resolution of up to 0.1 μ Ω and is currently the most stable contact resistance tester in China that can achieve a resolution of 0.1 μ Ω. Its performance exceeds that of imported high current micro ohmmeters

•powerful functionThe current can be freely selected between 100A and 200A, and the testing time can be set arbitrarily within 10s~30s, overcoming the shortcomings of other similar instruments that cannot set the measurement time or the continuous working time is too short, far exceeding the performance of other similar instruments
•Easy to operateConfigure a USB interface for convenient data export experience, and come with a printer to print test data in a timely manner

▍ Product Technical Parameters 　↴

•Output current: 100A, 200A

•Zui small resolution: 0.1 μ Ω
•Range: 10 μ Ω~19999.9 μ Ω

•Accuracy: ± (0.5%+5 words)