MESR-100 Auto Ranging ESR Low Ohm Circuit Capacitor Meter Tester

Description MESR 100 AutoRanging ESR Low Ohm Circuit Capacitor Meter TesterFeature Measuring range from 0 001 to 100 0R support IN CIRCUIT Testing Using true 100 KHz sine wave to measure the ESR value which is equal to the testing method of capacitor manufacturer What is ESR of capacitor There is a series resistor inside capacitor using 100kHz to remove the impedance1 2 pi F C the impedance become small and we can then measure the true seriesresistor value A bad E capacitor will have larger ESR and create large ripple rather than filteringnoise Normally a big capacitor is larger than 3 ohm Using this theory we can measure the capacitor is bad damaged or good in condition Because our ESR meter only applies less than 15mV DC or peak to peak on a goodcapacitor as a result we can use it as in circuit test Because this low testing voltage itcannot turn on the semiconductor inside a circuit under testing During repairing TV LCD Audio board etc we can in circuit testing the capacitor isgood or not 1 Accuracy Up to 1 detail on above table 2 High Resolution 4 digit or 0 001Ohm 1 Ohm range3 Measuring voltage 40mV RMS TESTING VOLTAGE 4 Clamping voltage 0 15V open voltage 5 Battery 2X AA 1 5V battery6 External Power 5V micro USB7 Operating current 0 02A8 Battery Life time 80 HoursPackage included 1 x MESR 100 Circuit Capacitor Meter2x Test Clips1 x English ManualDetails pictures