GDHL-300B DC 300A Weld Electrical Switches Contact Resistance Tester

GDHL-300B DC 300A Weld Electrical Switches Contact Resistance TesterApplication1. High,middle and low voltage circuit breakers2. High,middle and low voltage disconnecting switches3. High-current bus bar joints4. Cable&Welding joints5. It is suitable for high current, micro ohm measurement. Features  Output high-current continuously. Quick and accurate test. Test current is generated from high-precision 100A/200A switching mode constant current power supply, no need for manual adjustment.Adopts four-terminal wiring method. The influence of test line resistance on test results is effectively eliminated.Stable performance. There is over-heat protection crcuit designed for long-time working.Light weight, easy to carry and operate.  SpecificationsPower supplyAC220V±10%, 50HzPower consumption≤2000WWorking modeOutput time can be set.Test current50A, 100A, 200A, 00AMeasurement range1-1999.9μΩ, resolution 0.01μΩAccuracy0.5%±0.2μΩOutput VoltageMax. 5VWorking modeOuput time can be setWorking temperature-20ºC~40ºCRelative humidity≤80%RH (no condensate)Weight6kg  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1