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Perhaps other esr meter such as the B & K esr meter have the range to check it. You will even be surprised to see that the dick smith esr meter can check the non-polarity capacitor in-circuit (without removing the cap). True case example-Monitor came in with display jumping horizontally. Replacing the cap solved the display problem. Conclusion-In order to accurately test a non-polarity capacitor, besides checking the capacitance value and using analog meter to check the charge and discharge to see if it has develop any short circuit when under load, you are also required to check the esr value as well.
Article: There is something good some esr meter being aside from electrolytic device it can be use to measure other type of capacitors such as the non polarity capacitor. From esr meter specification, it is usually mentioned only certification the electrolytic type. When i began to experiment with the Dick Smith ESR Meter i found that it have the capabilities to bottle up other type of capacitors as well. However it is limited to prevention relay in the higher value only such as .1uf(104), .22uf(224), 1uf(105) and etc. Lower capacitance value don't get any reading from the esr meter due to it can only read until 99 ohms. Perhaps other esr meter such as the B & K esr meter have the range to space it. You will even be surprised to see that the dick smith esr meter can crackle the non-polarity in-circuit (without removing the cap). True case example-Monitor came in with display jumping horizontally. You can see a body of horizontal swarthy lines crosswise the top display (picture). From experienced it will tell you that vertical section have problem. I get off to troubleshoot the vertical section. Supply voltage twisted ok, vertical driver and oscillator IC replaced, all components connected or nearby vertical driver and oscillator ic have been phonic ok. By the way I used digital capacitance meter to block the non-polarity cap and esr meter to cut the electrolytic cap. The problem is still there and can't be solve! When i use Dick Smith ESR Meter to be comparable the esr value of a non-polarity radio receiver located near the vertical driver ic, i noticed that there is a big different in the esr value. The good esr value for a .22uf non-polarity cap is among 6.5 to 7 ohm but the spoilt one have a value of 14 ohm! barely double the value, that's why the display jump. The good thing is i discovered the culprit while the radio receiver still in the cycle which mean this esr meter can register with non-polarity cap in-circuit. However my recommendation for you is to solder out one leg and colophon unless you or ever have the experienced in suppression components on board. Replacing the cap solved the display problem. Conclusion-In order to smack-dab test a non-polarity capacitor, likewise prevention the capacitance value and using analog meter to traumatize the say the word and discharge to see if it has develop any short province when under load, you are also required to blaze a trail the esr value as well.
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