Help with DE-5000 results

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  • elgato
    Member
    • Apr 2013
    • 32
    • USA
    #1

    Help with DE-5000 results

    I am trying to use the DE-5000 to test some caps. I am new to this and would appreciate some input.

    Junzl 100uF 400V

    In Cs Mode:

    100hz Cap 88.17 ESR .9
    120hz Cap 87.95 ESR .8
    1khz Cap 85.6 ESR .57
    10khz Cap 77.1 ESR .52
    100khz Nothing "OL"

    Rs
    100hz .90
    120hz .83
    1khz .57
    10khz .51
    100khz.49

    What results should I be looking at and why?
    The datasheet seems to spec 100khz?

    ESR meters like the Atlas ESR70 or the Blue appear to simply auto adjust frequency and simply display values. What are they doing?

    Thank you.
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31015
      • Albion
      #2
      Re: Help with DE-5000 results

      ESR70, blue and a few other are fixed frequency afaik.

        Comment

        • Per Hansson
          Super Moderator
          • Jul 2005
          • 5895
          • Sweden
          #3
          Re: Help with DE-5000 results

          The cheap meters don't do a proper test, but it's a close enough approximation to give a decent result over a wide range.
          A high end meter like yours has the ability as you found to test at the frequency listed in the datasheet.
          It's simply a more reliable method vs "winging it"
          "The one who says it cannot be done should never interrupt the one who is doing it."

            Comment

            • elgato
              Member
              • Apr 2013
              • 32
              • USA
              #4
              Re: Help with DE-5000 results

              Given this data sheet. What is the appropriate test frequency for 1. Capacitance, 2. ESR

              https://cdn.badcaps-static.com/pdfs/...0df5a37c01.pdf

              Rule of thumb appears to be 120Hz for over 10uF and 1kHz for under 10uF. ?
              Thanks

                Comment

                • Per Hansson
                  Super Moderator
                  • Jul 2005
                  • 5895
                  • Sweden
                  #5
                  Re: Help with DE-5000 results

                  The rule of thumb is that General Purpose caps are 120Hz.
                  And low impedance (ESR) caps are rated for 100Khz.
                  But it should always be listed in the datasheet.
                  "The one who says it cannot be done should never interrupt the one who is doing it."

                    Comment

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