MT3000 Analyzer and MT2400

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  • quadracerx
    Junior Member
    • Mar 2017
    • 4

    MT3000 Analyzer and MT2400

    I know this is an old machine. I got it for nothing and it works!! It doesn't keep the settings for date, port settings etc. I am wondering if it has a CMOS battery (the coin looking type) like a computer?

    And if so, how hard it is to change?

    I also received a MT2400 with it, but it does not turn on or anything? Is there someone who repairs these?

    Thanks for any help you can provide...

    Sincerely,

    Steve
  • John Forro
    Junior Member
    • Mar 2016
    • 4

    #2
    Counsler 2

    Steve:
    I posted a similar question on the Diagnostic
    Work Around Fourm 3/11/16, had no response.
    I removed cover and searched and searched for
    CMOS a battery, none. Tester is a pain to use
    this way. Maybe some sort of super capacitor on
    A circuitboard serves this function. Would really
    Appreciate some info on this memory loss problem,
    I'm shure that you and I are not alone with this
    Problem. A schematic would really be helpful to
    Figure it out. Time and date ,really not a big deal
    But losing saved patterns and having to reset the
    Comm.ports every time to use Gas Analyzer is
    Aggravating. Sincerely, John Forro Sr.

    Comment

    • Witsend
      Banned
      • Nov 2012
      • 2942

      #3
      Think it's able to run off a DC car battery , so if you shut it down and don't leave it plugged in to ac , clip it to a battery with DC power adapter if you unplug the unit to move it around before you switch it to AC power and plug it in.I don't care if mine thinks it's 1980.

      Comment

      • John Forro
        Junior Member
        • Mar 2016
        • 4

        #4
        Counsler 2

        Dear Senior Member:
        You are 100 percent correct on switching from
        A/C to D/C and this should help Steve. It does
        Mean however that at first power on,after being
        Off you will have to set up the comm ports and
        Ground references for the lab scope and time and
        Date if you so choose and maintain a separate
        Battery when you disconnect from the vehicles
        Battery to retain settings. Not a big deal when
        You consider the capabilities of these fine testers.
        Thank you for your quick and accurate response.
        Sincerely,John Forro Sr.

        Comment

        • John Forro
          Junior Member
          • Mar 2016
          • 4

          #5
          Quadracer x

          Steve:
          Took a second look inside Counsler2
          Main circuit board has small box as part of the
          board, no identifying markings on it but I am
          starting to think it might be a battery of some
          type. Again, a schematic would be extremely
          valuable.If you find any more. Info, would
          appreciate a post. Thanks, sincerely, John.

          Comment

          • sha_tay
            Junior Member
            • May 2016
            • 2

            #6
            Mt3000 cmos?

            Has anybody solved this issue?

            Comment

            • Witsend
              Banned
              • Nov 2012
              • 2942

              #7
              I think the engineers, and the folk that designed and serviced the Counselor 2 in the field back in the day when they were new and under warranty have moved on to Banging Ole Biddys after Bingo in Florida retirement communities before their C -grand-Mos batteries run out in their Pace makers.
              I don't give a Sh@t if my Counselor 2 reads 20 years before Y2k, just like to know if there is a decrepit old battery that might leak and F up a board or something ,be good to know I should pull it out before it does.

              Comment

              • NYengineer
                Junior Member
                • Sep 2018
                • 1

                #8
                Yes, it's a super cap

                Originally posted by John Forro
                Steve:
                Took a second look inside Counsler2
                Main circuit board has small box as part of the
                board, no identifying markings on it but I am
                starting to think it might be a battery of some
                type. Again, a schematic would be extremely
                valuable.If you find any more. Info, would
                appreciate a post. Thanks, sincerely, John.
                John, That box is, indeed a super capacitor 1F, 5.5V rating. It can be replaced with a new, smaller form factor super cap, but you'll need to solder lead extensions to the replacement to fit the gap left by that huge, original design cap. The trick to make it work, though, is to pre-charge the newly installed cap using a 3-5 volt battery, as the circuit charge pump does not seem sufficient. Once done, voila!, the keep alive memory works. The part number that I used from Mouser is 80-FGR0H105ZF. In my opinion, this is still a useful tool, especially when paired with the exhaust gas analyzer. Oh, how I wish I could have bought my first one in the 90's as cheaply as I got my last two! I know this is an old post, but am sure someone may visit this thread again.

                Comment

                • jeffberk
                  Junior Member
                  • Sep 2018
                  • 1

                  #9
                  new owner of MT3000A

                  Can the word "new" and "MT3000A" be used in the same sentence.
                  I just picked this up but as with most of these out there, the memory battery is dead. QuadracerX, Thanks for the information on the capacitor. I'm not too proficient with soldering so I will find someone who is and will look into getting the "super capacitor" once I get more familiar with the instrument.

                  Comment

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