The ESR values on the Capacitor Data Sheets need to be measured at 100Khz. The capacitors Capacitance should be measured at 120 Hz. Not at 1 KHz where the LCR meter defaults to. You might look at the Data Sheets to see what the manufacturers measure their caps at, Dave Jones at EEVBlog, usually shows you the Panasonic Data Sheets. Later Ray Burke.
I've delt with this problem quite commonly I get TV's in the shop from time to time with bad caps in the power supplies. Those 1000 uf 25v or 16v caps seem the most common value to fail! Good work!
As per a previous comment, you need to understand that as frequency goes up, effective capacitance goes down. The manufacturers quote cap values usually against 120Hz as this is full wave rectified US mains frequency. You keep seeing low cap values in your video due to testing with the meter on its default of 1kHz.
Some of the differences in reading is due to frequency used to test vs manufacturing test frequencies. I found it best to use 120 HZ for most . TRX lab has a good lengthy video explaining the DER EE 5000
Where did you get the chart? I removed several capacitors and I tested with an esr meter but I do not know if they are good or bad that is the reason I need a chart.Thank you
There are plenty of ESR charts online. Just search ESR chart in google. Also remember the capacitor value is measured at 120Hz and ESR is measured at 100KHz as ray burke states above. So if your meter allows you to, change the frequency accordingly. The reason 120Hz is used to measure capacitance if you don't already know, is because mains frequency in the US is 60Hz, when you put it through a full wave rectifier the frequency doubles to 120Hz. Here in the UK it would be 100Hz but you still test at 120Hz as that was the standard frequency to test capacitors at, devised about 20 years ago.
Have you learned any more about your DE-5000? Great video, short and to the point. FYI the ESR datasheet link is bad. but can now be found: www.bobparker.net.au/esr_meter/images/2003esrchart.pdf If that fails just Google, "approx worst (highest) esr". I've had mine about a week and found you just about have to have the manufacturer's datasheets to use it. But as you've learned as you get a feel for what bad is, it helps.
The ESR values on the Capacitor Data Sheets need to be measured at 100Khz. The capacitors Capacitance should be measured at 120 Hz. Not at 1 KHz where the LCR meter defaults to. You might look at the Data Sheets to see what the manufacturers measure their caps at, Dave Jones at EEVBlog, usually shows you the Panasonic Data Sheets. Later Ray Burke.
ray burke thank you for the information. This LCR meter is a new toy and I am still learning. Thanks again.
Hey mister. Is there any meter that can be programmed to do it for you while it measures?
Any product sold in the USA should have the instructions written in English.
I've delt with this problem quite commonly I get TV's in the shop from time to time with bad caps in the power supplies. Those 1000 uf 25v or 16v caps seem the most common value to fail! Good work!
As per a previous comment, you need to understand that as frequency goes up, effective capacitance goes down. The manufacturers quote cap values usually against 120Hz as this is full wave rectified US mains frequency. You keep seeing low cap values in your video due to testing with the meter on its default of 1kHz.
Yes from data from Rubycon, 470uF 16V 120Hz is 470uF, BUT at 200kHz is only 130uF and at 600kHz is only 80uF
Some of the differences in reading is due to frequency used to test vs manufacturing test frequencies. I found it best to use 120 HZ for most . TRX lab has a good lengthy video explaining the DER EE 5000
Can it test on the board?
Cheap capacitors are planned obsolescence.
Thank you
what is analog bar graph for?
it shows the percentage of the automatically selected full scale value that the current reading is. Discovered that by testing the meter a LOT.
did you just state the 470uf was .1 ohm esr max ? the chart says .25
george vagner yes I misspoke, it is as you say .25. Thanks for stopping by.
Where did you get the chart? I removed several capacitors and I tested with an esr meter but I do not know if they are good or bad that is the reason I need a chart.Thank you
can u use the meter to check it in circuit?
Yes
Can you update the link to the ESR chart? Thanks.
try this one:
www.solidpost.com/doku.php?id=electronic:standard_capacitor_worst-case_electrolytic_esr_table
The ESR Chart link no longer works.
There are plenty of ESR charts online. Just search ESR chart in google. Also remember the capacitor value is measured at 120Hz and ESR is measured at 100KHz as ray burke states above. So if your meter allows you to, change the frequency accordingly. The reason 120Hz is used to measure capacitance if you don't already know, is because mains frequency in the US is 60Hz, when you put it through a full wave rectifier the frequency doubles to 120Hz. Here in the UK it would be 100Hz but you still test at 120Hz as that was the standard frequency to test capacitors at, devised about 20 years ago.
Have you learned any more about your DE-5000? Great video, short and to the point. FYI the ESR datasheet link is bad. but can now be found: www.bobparker.net.au/esr_meter/images/2003esrchart.pdf If that fails just Google, "approx worst (highest) esr". I've had mine about a week and found you just about have to have the manufacturer's datasheets to use it. But as you've learned as you get a feel for what bad is, it helps.
Should be tested at 100khz not one
Power supply caps should be tested at 100 or 120, I can't remember what the lower range is on this meter
The DE5000 instructions are written in Chinese. I've never used mine. I don't read, write Chinese.
www.ietlabs.com/pdf/Manuals/DE_5000_im.pdf
This is the same meter but branded under a different name. Manual is in English. Good luck.👍
@@TheRadiogeek why should I have to pay to print out a manual that should have been in English to start with?
Paul Isham I don’t own the company. I guess if you want an English manual that’s what you’ll have to do.
@@paulisham5669 An IET DE-5000 is $400 a DE-5000 OEM is $100. You get what you pay for.
@@paulisham5669 that’s what you get when you buy cheap chinese crap you cheap idiot lol 🤣🤣