About a month ago, I bought a Lutron DM-9023 Capacitance Meter, since I want to go through my stock of used electrolytic capacitors.
It goes down to .1pF units, and can measure up to 20,000uF (it is not likely that I will ever measure a capacitor which is over 10,000uF or even over 20,000uF).
Since Lutron (Taiwan) has been making quality test equipment for over 30 years, I can trust the accuracy of this particular equipment.
With this equipment, I found a number of off-brand (Jun Fu, JP etc.) 200/250V electrolytic pairs from computer power supplies were way out of tolerance and I got rid of them.
I even got rid of two known-brand 400V units which had very little capacitance when measured compared to the capacitor label.
It goes down to .1pF units, and can measure up to 20,000uF (it is not likely that I will ever measure a capacitor which is over 10,000uF or even over 20,000uF).
Since Lutron (Taiwan) has been making quality test equipment for over 30 years, I can trust the accuracy of this particular equipment.
With this equipment, I found a number of off-brand (Jun Fu, JP etc.) 200/250V electrolytic pairs from computer power supplies were way out of tolerance and I got rid of them.
I even got rid of two known-brand 400V units which had very little capacitance when measured compared to the capacitor label.
