product description:
Using 100kHz to remove the impedance 1/(2*pi*F*C), the impedance will become small, and then we can measure the true series resistor value. A bad E-capacitor have larger ESR and create large ripple rather than filtering noise. Normally, a big capacitor is larger than 3 ohm.
Therefore, we can measure the capacitor is bad, damaged or in good condition by using this theory.
Because our ESR meter only applies less than 15mV DC or peak to peak on a good capacitor, as a result we can use it as in circuit test. Because this low testing voltage, it cannot turn on the semiconductor inside a circuit under testing. During repairing TV, LCD, Audio board, etc. we can in circuit testing the capacitor is good or not.
Advantage of V2: 1) Change square wave to sine wave 100 KHz, reduce square wave s high frequency component, and affect the reading passing the test leads and capacitor.
2)Higher Resolution up to 0.001 ohm.
3)128X64 dot matrix LCD, with larger value display and information
4)Embedded 25V capacitor table at LCD, auto display the capacitor is good or bad reference to common 25V electrolytic capacitor.
5)New plastic case, curve design for hand carrying. New stand for 60 degree stand on desk.
6)Use 2X AA battery, more convenience and longer battery life than 9V battery.
7)Support external USB power, using standard micro-USB port.
Specification: 1)Accuracy: Up to 1% (detail on above table)
2) High Resolution: 4 digit, or 0.001Ohm @ 1 Ohm range
3)Measuring voltage: <~40mV RMS (TESTING VOLTAGE)
4)Clamping voltage: ~0.15V (open voltage)
5)Battery 2X AA 1.5V battery
6)External Power: 5V micro USB
7)Operating current0.02A
8)Battery Life time: >80 Hours
Package 1x MESR-100 V2
2 x test clips
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