Fluke 289 bad supercapacitor replacement repair

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  • CapLeaker
    Leaking Member
    • Dec 2014
    • 8061
    • Canada
    #1

    Fluke 289 bad supercapacitor replacement repair

    Here it goes... we have two Fluke 289, bought one in 2012 and the other in 2013, both are rev. 015 boards. Both supercaps are done for. Take battery out for 3 seconds, put it back in, got date and time error on the display.

    The original supercap was a Panasonic EN series 3.3V 200mF SMD @ 500hrs rated. Digikey #: P14162CT-ND , Manufacturer #: EEC-EN0F204AK . https://www.digikey.com/product-deta...2CT-ND/1937320. Not available anymore.

    Replacement SMD Digikey part #'s:
    ELNA DSK series, 200mF @ 3.3V, exact original size Digikey #: 604-1147-1-ND, Manufacturer #: DSK-3R3H204T614-H2L

    or:

    ELNA DSK series, 220mF @ 3.3V, same diameter, but 3mm tall (will fit too): Digikey #: 604-1020-1-ND, Manufacturer #: DSK-3R3H224U-HL

    I am going to replace them with the 220mF one in both. The original is 1.8mm high, well this one is 3mm high, same diameter. One can fit up to 5mm high in there. Hope this helps someone that sit's in the same boat as I am. There are tons of threads out there and folks took all kinds of different replacements. However, if one likes their replacement cap looking like stock and not having to shim, trim, glue or whatever, these are proper drop in replacements for Fluke 289's with the SMD supercap.
    Attached Files
    Last edited by CapLeaker; 09-30-2018, 07:08 AM.
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30964
      • Albion
      #2
      Re: Fluke 289 bad supercapacitor replacement repair

      many meters have been fucked by that cap leaking!

        Comment

        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8061
          • Canada
          #3
          Re: Fluke 289 bad supercapacitor replacement repair

          Unfortunately yes. Which sucks big time, because they aren't really a "cheap" DMM either. I am fortunate, that both caps were not leaking to the board yet making a mess. I suggest strongly to anyone that has a Fluke 287 / 289 to do this test and replace that cap before it is too late. Different revision boards, have different style of supercaps in it too. Also the 189 is affected, but not the 187 series.

            Comment

            • Per Hansson
              Super Moderator
              • Jul 2005
              • 5895
              • Sweden
              #4
              Re: Fluke 289 bad supercapacitor replacement repair

              Keep in mind these meters have a minimum of 10 years warranty.
              So if anyone is not up to replacing them just send it in to Fluke to have them do it...

              https://www.fluke.com/en-gb/support/warranties
              "The one who says it cannot be done should never interrupt the one who is doing it."

                Comment

                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 30964
                  • Albion
                  #5
                  Re: Fluke 289 bad supercapacitor replacement repair

                  didnt they fuck around over this?
                  i seem to remember a long thread at eevblog about it.

                    Comment

                    • retiredcaps
                      Badcaps Legend
                      • Apr 2010
                      • 9271
                      #6
                      Re: Fluke 289 bad supercapacitor replacement repair

                      Originally posted by stj
                      i seem to remember a long thread at eevblog about it.
                      Yes. See

                      https://www.eevblog.com/forum/testge...unt-coin-cell/
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                        Comment

                        • CapLeaker
                          Leaking Member
                          • Dec 2014
                          • 8061
                          • Canada
                          #7
                          Re: Fluke 289 bad supercapacitor replacement repair

                          Originally posted by Per Hansson
                          Keep in mind these meters have a minimum of 10 years warranty.
                          So if anyone is not up to replacing them just send it in to Fluke to have them do it...

                          https://www.fluke.com/en-gb/support/warranties
                          There seems to be a mixed bag of results with this issue being fixed under warranty. However since this can be fixed fairly easily and way a faster than sending it into Fluke, I'll just repair it myself.

                            Comment

                            • CapLeaker
                              Leaking Member
                              • Dec 2014
                              • 8061
                              • Canada
                              #8
                              Re: Fluke 289 bad supercapacitor replacement repair

                              Got the supercap today, it fits perfect, and the meters are back in business as they suppsed to be.

                                Comment

                                • Per Hansson
                                  Super Moderator
                                  • Jul 2005
                                  • 5895
                                  • Sweden
                                  #9
                                  Re: Fluke 289 bad supercapacitor replacement repair

                                  Nice! But you're supposed to post pictures to make us happy
                                  "The one who says it cannot be done should never interrupt the one who is doing it."

                                    Comment

                                    • CapLeaker
                                      Leaking Member
                                      • Dec 2014
                                      • 8061
                                      • Canada
                                      #10
                                      Re: Fluke 289 bad supercapacitor replacement repair

                                      Originally posted by Per Hansson
                                      Nice! But you're supposed to post pictures to make us happy
                                      Beware you are about to see Fluke porn!
                                      I had to take the 289 apart again to make pictures. On a side note: The supercap held the memory for the entire time I had it apart again. So I am happy!
                                      Attached Files

                                        Comment

                                        • Per Hansson
                                          Super Moderator
                                          • Jul 2005
                                          • 5895
                                          • Sweden
                                          #11
                                          Re: Fluke 289 bad supercapacitor replacement repair

                                          Nice!
                                          "The one who says it cannot be done should never interrupt the one who is doing it."

                                            Comment

                                            • fabry_85
                                              New Member
                                              • Jan 2019
                                              • 1
                                              • Italia
                                              #12
                                              Re: Fluke 289 bad supercapacitor replacement repair

                                              HELLO boys!
                                              I need your help. :'( :'( :'(
                                              I have the tester 289 that as I turn on gives me an "incorrectly connected cables."
                                              Could it be the super capacitor?
                                              it is damaged. the fluke is 289 and of the year 2008.
                                              I found on ebay a PANASONIC GOLDCAP KONDENSATOR Capacitor 0,22F 3,6V 10x5MM[/img].
                                              You can help me?
                                              Thank you.
                                              Attached Files

                                                Comment

                                                • Per Hansson
                                                  Super Moderator
                                                  • Jul 2005
                                                  • 5895
                                                  • Sweden
                                                  #13
                                                  Re: Fluke 289 bad supercapacitor replacement repair

                                                  Check for contamination inside the jacks for the cables.
                                                  If memory serves me right there is an optical sensor there.
                                                  So if there is dirt in the ampere jack it will cause this message...
                                                  "The one who says it cannot be done should never interrupt the one who is doing it."

                                                    Comment

                                                    • stj
                                                      Great Sage 齊天大聖
                                                      • Dec 2009
                                                      • 30964
                                                      • Albion
                                                      #14
                                                      Re: Fluke 289 bad supercapacitor replacement repair

                                                      i wonder if putting RTV on the cap would contain it, or if the leak is under pressure??

                                                        Comment

                                                        • eccerr0r
                                                          Solder Sloth
                                                          • Nov 2012
                                                          • 8688
                                                          • USA
                                                          #15
                                                          Re: Fluke 289 bad supercapacitor replacement repair

                                                          Is the electrolyte leak causing damage to other components?

                                                          Anyway, probably the same answer as whether to use RTV on a regular electrolytic capacitor to prevent leaks, though a supercapacitor does not need to deal with ESR as much if it's just needed to maintain static RAM state.

                                                          In other words, it leaks because it's under pressure...

                                                            Comment

                                                            • redwire
                                                              Badcaps Legend
                                                              • Dec 2010
                                                              • 3902
                                                              • Canada
                                                              #16
                                                              Re: Fluke 289 bad supercapacitor replacement repair

                                                              The supercap electrolyte is acidic and it eventually corrodes through the case and causes a lot of damage. Putting RTV over that, uh just a mess for a few dollar part in an expensive multimeter.

                                                                Comment

                                                                • redwire
                                                                  Badcaps Legend
                                                                  • Dec 2010
                                                                  • 3902
                                                                  • Canada
                                                                  #17
                                                                  Re: Fluke 289 bad supercapacitor replacement repair

                                                                  For Fluke 289 jack-detect DS2, any top-emitting 0805 IR LED will work, just not too high to hit jack diffuser when you assemble everything.

                                                                  Original is mentioned as OSRAM SFH 325 FA-3/4-Z series, peaking at 980nm. One guy used 940nm Harvatek HT-170IRAJ works fine.
                                                                  Attached Files

                                                                    Comment

                                                                    • stj
                                                                      Great Sage 齊天大聖
                                                                      • Dec 2009
                                                                      • 30964
                                                                      • Albion
                                                                      #18
                                                                      Re: Fluke 289 bad supercapacitor replacement repair

                                                                      Originally posted by redwire
                                                                      The supercap electrolyte is acidic and it eventually corrodes through the case and causes a lot of damage. Putting RTV over that, uh just a mess for a few dollar part in an expensive multimeter.
                                                                      i didnt mean instead of replacement - i meant ON the replacement.

                                                                        Comment

                                                                        • redwire
                                                                          Badcaps Legend
                                                                          • Dec 2010
                                                                          • 3902
                                                                          • Canada
                                                                          #19
                                                                          Re: Fluke 289 bad supercapacitor replacement repair

                                                                          I see- as an extra seal to protect against future leaks. I'm not sure what the acid is, as silicone sealant dissolves in sulfuric acid and puffs up in nitric and acetic acid. Larger supercaps can take a piss on a PC board. If the cap had a housing or was potted maybe.

                                                                            Comment

                                                                            • CapLeaker
                                                                              Leaking Member
                                                                              • Dec 2014
                                                                              • 8061
                                                                              • Canada
                                                                              #20
                                                                              Re: Fluke 289 bad supercapacitor replacement repair

                                                                              Did anyone’s replacement cap fail again? Charged up the batteries (takes roughly 2hrs)in my 289 and had to input date and time again. Ugh!

                                                                                Comment

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