Got one of these a couple of days ago. I also gambled on some new old stock 10000uf BHC capacitors, so a good chance to check them out.
First attempt and I get 'OL' on the display....hhmm...maybe these caps are bad.
Then I realise it is set to a high frequency. Lowering to 100Hz or 120Hz and I get 8600uf....getting somewhere.! I can't remember at which frequency it went 'OL' but I understand that a big old smoothing capacitor is meant for use at lower frequencies. I'm assuming it has 100 and 120 for both 50hz (240) and 60hz 120 mains? So I only need to measure power supply caps at these settings?
What is actually happening to the cap when trying to test at high frequency to give the OL?
Regarding low esr caps such as polymers we may use on digital rails for instance, I guess here it is when we set to the higher frequencies but how would we choose....or does it really matter?
It seems a good but of kit but one which I have some learning!
First attempt and I get 'OL' on the display....hhmm...maybe these caps are bad.
Then I realise it is set to a high frequency. Lowering to 100Hz or 120Hz and I get 8600uf....getting somewhere.! I can't remember at which frequency it went 'OL' but I understand that a big old smoothing capacitor is meant for use at lower frequencies. I'm assuming it has 100 and 120 for both 50hz (240) and 60hz 120 mains? So I only need to measure power supply caps at these settings?
What is actually happening to the cap when trying to test at high frequency to give the OL?
Regarding low esr caps such as polymers we may use on digital rails for instance, I guess here it is when we set to the higher frequencies but how would we choose....or does it really matter?
It seems a good but of kit but one which I have some learning!
The specs actually say "-" for large caps and high frequencies. Obviously it is working as specified.
