The operation panel of this instrument adopts an ergonomic design that conforms to operating habits. It adopts high-frequency switching power supply and digital circuit technology, and is suitable for measuring the circuit resistance of switch control equipment. The testing current adopts the DC 200A recommended by the national standard. The circuit resistance can be directly measured under DC 200A, and the test results are displayed on a large LCD TFT color screen, with functions such as data storage, output printing, and time setting. There are 50A, 100A, 150A, and 200A gears for users to choose from; Customized testing time, with a maximum set time of 60S, it is a very stable contact resistance tester with performance exceeding that of imported high current micro ohmmeters. Meet the requirements of on-site high-voltage switch maintenance and high-voltage switch factory circuit resistance testing by the power and power supply departments.

Measurement range: 0-80m Ω

Minimum resolution: 0.001 μ Ω

Measurement accuracy: ± (reading × 0.5%+1 μ Ω)

Test power supply: constant current and voltage limiting, approximately 8.0V

Test current: DC 50/100/150/200A

Test current accuracy: ± 5%

Measurement time: fast, optional from 10 to 60 seconds

Special testing line: resistance<20m Ω

Charging power supply: Input 180V~240VAC, 50Hz/60Hz,

Data storage: Store 100 sets of measurement data

Working environment: temperature -10~50 ℃, humidity ≤ 90%

Host weight: approximately 7kg (excluding cables)

Host volume: 420mm × 340mm × 200mm