Would the process below be any different testing capacitors in circuit on board.
1) Discharge the capacitor by shortening its leads. That is - use a wire and connect the leads of the capacitor together. This will discharge it.
2) Put your multimeter in the high ranges 10K-1M
3)CONNECT MULTIMETER TO CAPACITOR LEADS(OBSERVE THE POLARITY IF ELECTROLYTIC). AS SOON AS THE LEADS MAKE CONTACT, THE METER WILL SWING NEAR ZERO. IT WILL THEN MOVE SLOWLY TOWARD INFINITY. FINALLY THE METER WOULD COME TO BE INFINITE OHMS BECAUSE THE CAPACITOR IS BEING CHARGED BY THE BATTERY OF THE MULTIMETER.
4) IF THE CAPACITOR IS BAD, IT WILL GO TO ZERO OHMS AND REMAIN THERE. THIS IS CALLED A SHORTED CAPACITOR.
5) IN THE CASE OF AN OPEN CAPACITOR THERE WILL BE NO OHMMETER INDICATION.
6)SOME CAPACITORS HAVE A LOW DIELECTRIC LEAKAGE. YOU WILL KNOW THIS IF THE OHMMETER COMES TO REST AT A POINT LOWER THAN INFINITE. TEST A KNOWN GOOD CAPACITOR OF THE SAME TYPE TO BE SURE
1000uf 16v capacitor test results after discharge on x10 scale analog meter
measurement upon reading goes to about 5 ohms and stops
when reversing leads, goes to about 60 ohms and stops on some and discharges on others
my analog meter is powered by 2 aa battery, 3V is that enough voltage to
load capacitor? or is still being in a circuit giving me strange readings?
I am getting readings like this on Caps that appear fine.
Thanks for your help.