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looking to buy lcr meter what are you options on brands

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Mortymore:
Since it seems there's the need to add some clarification to my previous post, here I am again.

First let's understand that one may have different approaches (experience) to electronics. If you are designing something, the part data-sheet has to be observed thoroughly, but when troubleshooting, an empirical approach will suffice.

I bought a DE-5000 to (try) be more thorough. I had an Elektor ESR meter for years to troubleshoot, and has served me well. So, lets say I've been more empirical in the subject.
But I may have to recall that my previous table was to compare this 2 meters. If I had selected different test frequencies in the DE-5000 according to the best suited for the capacitor, then my results would be meaningless to me, since the Elektor ESR meter only generates 100kHz. Please see photos attached from the output of the meters. By the way... I couldn't observe nothing useful from the BSIDE, in the scope, since it must generate a few test signals to figure out what he has connected in the input (a diode, resistor, capacitor, transistor...).  :scared:

About the table and is values: It has the title "ESR" on line 1, so by default this should mean Ohm, but yes, I didn't mention that. Sorry.  :palm:
Column B is marked "uF", meaning micro Farad, and column C is marked "V" meaning Volt.
On columns  D, E and F we have the test results in Ohm (not stated. My bad  |O ), and the test frequency set of 100kHz (apart from BSIDE that is unknown to me)

Concerning the correct test frequency to measure the ESR, one approach is to check the data-sheet, but it shouldn't be left out the real intended application. Though 120Hz is regularly mentioned for big capacitors, I think (and might be wrong, and if so, let me know) this has to be to the fact that they are largely used in linear PSUs for filtering, and being 60Hz the frequency of power grind in US, there's a regular reference to 120Hz (frequency doubles after bridge rectifier). Well, if this is the case and I want to be picky, I should use 100Hz instead because in Portugal the power grid frequency is 50Hz. But hey!... I have a 4700uF in the output of another Elektor gadget, a Generator based on a XR2206 that goes up to 200kHz. For this purpose, I definitely will test the capacitor at 100kHz, no matter what the data-sheet my state.

A note: one must not forget that ESR changes with a few things like temperature, but most important to me, the voltage. So the expected ESR for a, let's say, 1000uF capacitor will be different if it is for 10V or for 300V.



In my previous post, i meat to say what I said (apart from the missing "Ohm" for ESR), and I though I had described well enough my intend purposes for the table provided. Sure it was not the best of the examples, or a broad one, but it was one, and it was meant to be just one example, nothing more.

To frame my approach, I'm not an electronics Pro, and most of my "doing" is for hobby. So the Pro's forgive my lack of assertiveness, but always fell free to correct me. As I say to my kids: "Errors will always occur, but what is wrong is not trying to correct them". (And so, learn from them)


BravoV:
@Mortymore , thanks for clarification.  :-+

Jwillis:
All the electrolytic capacitor data sheets I looked at which include Panasonic ,Nichicon, Cornell Dubilier and Rubycon. Capacitance Tolerance is measured ±20%(20°C,120Hz),ESR  (100 kHz/+20 °C) ,Dissipation Factor(MAX)(tanδ)(20°C,120Hz),Impedance(Ω MAX) 100kH z, Multiplier  for Ripple Current  120Hz 1kHz 10kHz 100kHz≦. Some have slight differences but this seems to be the general consensus between the ones I glanced through. 

Mortymore:

--- Quote from: sub2001zero on January 18, 2020, 01:13:11 am ---i was look at the DE-5000, AT824 and UT611  i want to stay under 200.00

--- End quote ---

About the Uni-T UT611, I would look at the UT612 instead. Has wider range values, better resolution and USB connection, and I believe is much closer to specs and features to the DE-5000.

https://www.uni-trend.com/html/product/tyyq/ComponentTesting/UT610_LCR_Meters/UT612.html

To point some notable differences between the 611 vs 612:

Display: 6000/1000 vs 20000/2000
Max. test frequency: 10kHz vs 100kHz
Max. R: 20MOhm vs 200MOhm
Max. L: 200H vs 2000H
Max. C: 10mF vs 20mF

Though Uni-T UT612 has a general slight better stated accuracy than the DE-5000, it looks to me that the test leads of the UT612 are not as "refined" as those of the DE-5000, and that slight advantage may de lost. But that's just my 2C's

Taking a quick look at the AT824 on the web, it jumped to my eye the 10kHz upper test frequency, like the UT611, so it wouldn't be an option in my opinion, even more taking in consideration the information brought by Jwillis:


--- Quote from: Jwillis on January 19, 2020, 12:03:12 pm ---All the electrolytic capacitor data sheets I looked at which include Panasonic ,Nichicon, Cornell Dubilier and Rubycon. Capacitance Tolerance is measured ±20%(20°C,120Hz),ESR  (100 kHz/+20 °C) ,Dissipation Factor(MAX)(tanδ)(20°C,120Hz),Impedance(Ω MAX) 100kH z, Multiplier  for Ripple Current  120Hz 1kHz 10kHz 100kHz≦. Some have slight differences but this seems to be the general consensus between the ones I glanced through.

--- End quote ---

There's another factor to take into account and it's the meter input protection, that as far a I could figure by web reading, it's non existent (or close to that) in the DE-5000. That's why I will keep using my Elektor ESR meter to poke into capacitors on boards, and the DE-5000 for the new ones or guaranteed to be discharged. In that regard, I don't know about that for your other options (didn't look for that).
The BSIDE ESR02 Pro cost roughly as much as a pair of test leads for the DE-5000, and would do no harm to have on the bench. (look for videos on youtube)  ^-^

Jwillis:
I don't know anything about any of the options people have put forth aside from the Mastech. The BSIDE ESR02 Pro screen read out looks exactly like the cheap DIY Transistor Tester Kit available from Ebay or Banggood. Not sure unless some one cracks one open to have a look. The Mastech I use seems to work fine in a non powered circuit and the manual states that capacitors must be discharged before measurements are taken. Likely because it may not have protection either . I haven't opened mine up to see but I think a review on You tube mentions it . It's like anything. You get what you pay for. 

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