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High Resolution MESR-100 V2 Auto Ranging In Circuit ESR Capacitor /Low Ohm Meter with LCD Display and Support external USB power

In Stock. History 112 sold. Item No. AT94

Latest price: US$59.00
Buy Now: US$54.99 7% off
Email: Sales@iDiyTools.com
Free Shipping Standard Flat Rate Shipping Service    Estimated delivery time: 10-18 working days.See details»
17cm*9.5cm*5cm     ( Inch: 6.69*3.74*1.97 )
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Product Description

MESR-100 V2 AutoRanging In Circuit ESR Capacitor /Low Ohm Meter Up to 0.01 to 100R,Support in Circuit Testing and Support external USB power.

MESR-100 V2 AutoRanging In Circuit ESR Capacitor /Low Ohm Meter Up to 0.01 to 100R 
TOP 4 Reasons to get MESR-100 V2 :

1. Dual terminal, fast and easy to inspect general capacitor or resistor, a printed ESR table for fast check
2. Measuring range from 0.001 to 100.0R, support IN CIRCUIT testing.
3. Using true 100 KHz sine wave to measure the ESR value, which is equal to the testing method of capacitor manufacturer.
4. Our ESR meter applies less than 15mV DC or peak to peak on a good capacitor, as a result we can use it as in circuit test.
What is ESR of capacitor?
1. There are series of resistor inside capacitor, using 100kHz to remove the impedance 1/(2*pi*F*C), the impedance become small, and we can measure the true series resistor value.
2. 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.
3. Using this theory, we can measure the capacitor is damaged or in good condition.  
4. During repairing TV, LCD, Audio board, etc. we can tell the capacitor is good or not in circuit testing.
Compare MESR100 old V1 and new V2 Improvement:
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. Support external USB power, using standard micro-USB port.
4. 128X64 dot matrix LCD, with larger value display and information
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. Embedded 25V capacitor table at LCD, auto display the capacitor is good or bad reference to common 25V electrolytic capacitor.
MESR-100 V2 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
1.000 to 10.00R 1%+1Digit ~0.4s
10.00 to 100.0R  2%+1Digit ~0.4s

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 )
High Resolution 4 digit, or 0.001Ohm @ 1 Ohm range
Measuring voltage <~40mV RMS (TESTING VOLTAGE)
 Clamping voltage ~0.15V (open voltage)
Battery 2X AA 1.5V battery
External Power 5V micro USB
Operating current 0.02A
Battery Life time  >80 Hours

Note:1. Accuracy may be affected by the test lead’s length and contact point resistance.
          2. Standard test leads is 15cm, for longer test leads need special shielding to affect the EMI inference (Can contact sales’ person for more detail)
Operating Introduction:
1) Power On
Press and hold the ON/ OFF circle orange button for 2 to 3 second to power on.
Press and release the ON/ OFF button to shut down meter.
2) Auto/ Manual Mode:
i) Auto Range:
Press and release the RANGE button and at the first line of LCD will show “AUTO:"
At auto mode meter will automatically select the best range to detect. 
ii) Manual Range:
Scroll the manual range from 1R, 10R and 100R range by press and release the RANGE button
In LCD will show MANUAL at first LCD line and show at second line: 0-1R, 1-10R and 10-100R.
3) 1 Key Zero:
Short circuit the test leads’ terminal, cancelling the wire resistance.
Press and release the “ZERO" button, LCD shows “ZERO" and wait the zero disappear.
If you are using the meter array socket, you need to use a short pin to short circuit to set zero.
4) Backlight:
LCD backlight will on during power on
5) Auto Sleep:
Around 10 hours for not testing, it will shut down automatically to save power.
6) Overflow or Ol:
Display overflow when the value is out of range, you can check that you are zero correctly.
7) Esr Table:
It is for reference only, different manufacturer of capacitor has different ESR, better to test a good cap ESR and compare with what you are testing, 
usually bad cap with higher ESR few times larger than good one.
8) Software Esr:
Put the 25V Electrolytic capacitor value to LCD, and compare,
GOOD if C < XXuF, means the capacitor maybe good condition if it is less than XXuF
9) Plastic Stand:
If you don’t use the stand, press and push the lock position
MESR-100 V2 Package Including:
1unit  x  MESR-100 V2
1pair  x  15cm test clips (see photo display)

If you have any questions, please feel free to contact us by following way:

Email: Sales@iDiyTools.com
Whatsapp: 0086-18046220975

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