Auto Range In Circuit ESR Capacitor Meter Tester Up to 0.001 to 100R MESR100 US

Description

MESR100 AutoRanging In Circuit ESR Capacitor Meter Tester Up to 0.001 to 100R with 2 pairs Probes
Features:
JINGYAN MESR-100 V2 Auto-ranging capacitor ESR and Low Ohm Meter, 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.
In the market, there is some technique using short pulse method to testing, but the value will be varying vs the capacitance and sometimes reading is different from the manufacturer's value
What is ESR of capacitor?
There is a series resistor inside capacitor, using 100kHz to remove the impedance 1/(2*pi*F*C), the impedance become small, and we can then measure the true series resistor value.
A bad E-capacitor will have larger ESR and create large ripple rather than filtering noise. 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 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.
*Dual terminal, for fast and easy inspect general capacitor or resistor, a printed ESR table for fast check
Specification
:
Range
Accuracy (After Zero, tested with 1,10,100R resistor)
Refresh Time (Manual Mode)
*Auto mode take 0 to 2s more time depend on value
0.000 to 1.000R
1%+2Digit
~0.4s
1.000 to 10.00R
1%+1Digit
~0.4s
10.00 to 100.0R
2%+1Digit
~0.4s
*Accuracy maybe affected by the test lead length and contact point resistance.
Standard test leads is 15cm, for longer test leads need special shielding to affect the EMI inference (Can contact sales person for more detail)
1) Accuracy: Up to 1% (detail on above table)
Wide Measurement Range: >1uF (for 0.1uF the error will be larger on equation 1/(2*pi*F*C) @ 100Khz )
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 (not include in the packing)
6) External Power: 5V micro USB
7) Operating current 0.02A
8) Battery Life time: >80 Hours
Package Content:
1 x MESR-100
1 Pair test probe
1 Pair Test Clip Probe
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We provide 1 year quality guarantee since you purchased our item
We would like to assure the all products can be arrived on time and in good condtion, but some quality problem caused by such as manufacture, material or bad quality under normal use, also damage goods during the shipping will be returned or refund, but a picture is necessary to proof the demage.
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(20% restocking fee will be charged) - within 14 days of receipt
If you would like to return your product(s) for repair / replacement / refund, please kindly contact us via email.
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