Fluke 87 going south?!

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • retiredcaps
    Badcaps Legend
    • Apr 2010
    • 9271

    #21
    Re: Fluke 87 going south?!

    Originally posted by Aikiotto
    as for my old 87 i managed to clean the contacts on the rotary switch with pure alcohol and didnt exhibit the issue for a couple days , then its back to misbehaving.
    If misbehaving means the battery is dead, then I suggest you use your 87V to measure the current drain when the 87 when it is off.

    I'll post pictures later, but this is an easy test to do to see if your Fluke 87 is consuming battery when it is supposed to be off.

    I used my Fluke 27 to measure the current consumption of my Fluke 83III. For most ranges, the Fluke 83III consumed roughly 0.840 ma. With the backlight on, it jumped to 25ma. When turned completely off, the Fluke 83III consumed 0.0ma (as expected).

    Once the new baby arrives i hope you guys can help me check its calibration , an issue retiredcaps just got me thinking about lol.
    I have now purchased several used Flukes from various parts of the world in various conditions. All of them are within 1 millivolt of each other when measuring DC voltage. I have also purchased non Flukes and all 4 of them were well off (one was 1% off) wrt to DC voltage.
    --- begin sig file ---

    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

    Please do not post inline and offsite as they slow down the loading of pages.

    --- end sig file ---

    Comment

    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271

      #22
      Re: Fluke 87 going south?!

      Here is a pic show the current draw.

      Dave Jones at eevblog.com also did a review of the Fluke 87V where he showed the current draw at around 1.2ma for most ranges. He also shows the current draw at sleep mode, 34 microamps, and off (0).

      http://www.eevblog.com/2009/05/24/ee...imeter-review/

      So do the test and post your results.
      Attached Files
      --- begin sig file ---

      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

      Please do not post inline and offsite as they slow down the loading of pages.

      --- end sig file ---

      Comment

      • tech1956
        New Member
        • Aug 2012
        • 1
        • USA

        #23
        Re: Fluke 87 going south?!

        For those looking to get the Fluke 44/100 fuses cheap please go to
        a web site by the name testpath.com.
        cleaning the zebra strips with contact cleaner works everytime in order to get the display working and no longer looks faded .

        Comment

        • retiredcaps
          Badcaps Legend
          • Apr 2010
          • 9271

          #24
          Re: Fluke 87 going south?!

          Originally posted by Aikiotto
          Once the new baby arrives i hope you guys can help me check its calibration , an issue retiredcaps just got me thinking about lol.
          Any update on this? The suspense is killing me!
          --- begin sig file ---

          If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

          We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

          Please do not post inline and offsite as they slow down the loading of pages.

          --- end sig file ---

          Comment

          • retiredcaps
            Badcaps Legend
            • Apr 2010
            • 9271

            #25
            Re: Fluke 87 going south?!

            Originally posted by tech1956
            For those looking to get the Fluke 44/100 fuses cheap please go to
            a web site by the name testpath.com.
            cleaning the zebra strips with contact cleaner works everytime in order to get the display working and no longer looks faded .
            Thanks for the tips.
            --- begin sig file ---

            If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

            We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

            Please do not post inline and offsite as they slow down the loading of pages.

            --- end sig file ---

            Comment

            • Kiriakos GR
              Banned
              • May 2012
              • 940
              • Greece

              #26
              Re: Fluke 87 going south?!

              Originally posted by tech1956
              For those looking to get the Fluke 44/100 fuses cheap please go to
              a web site by the name testpath.com.
              In addition to domestic orders (the United States and its territories), TestPath accepts international orders for all products except those branded as Fluke or Tektronix.

              Well the international orders other than the above limitation it would also have to pay an additionally 10$ per order.

              Divide and conquer !!

              Comment

              • Aikiotto
                Member
                • Oct 2011
                • 30

                #27
                Re: Fluke 87 going south?!

                Originally posted by retiredcaps
                Any update on this? The suspense is killing me!
                Lol actually yes , It should be arriving this week , stay tuned for updates .

                Comment

                • retiredcaps
                  Badcaps Legend
                  • Apr 2010
                  • 9271

                  #28
                  Re: Fluke 87 going south?!

                  Originally posted by Aikiotto
                  It should be arriving this week , stay tuned for updates .
                  A few regulars, including myself, are getting annoyed when we put in a lot of effort to help people and then never hear back.

                  4 months later, we still have not heard any updates?
                  --- begin sig file ---

                  If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                  We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                  Please do not post inline and offsite as they slow down the loading of pages.

                  --- end sig file ---

                  Comment

                  Related Topics

                  Collapse

                  • sam_sam_sam
                    Modification of a Fluke multi meter that uses three AA batteries to use a 14500 lithium ion battery
                    by sam_sam_sam
                    I have had with regular AA batteries that leak this meter is expensive new I already replaced the battery battery clips once and the same thing happened again and I am tried of so it is getting modified to accommodate lithium ion batteries that are the same size excluding the positive terminal and removing the battery clips I will have enough room for the BMS protection board

                    I going to put 3 lithium ion battery in parallel with the BMS protection board and a way to charge the battery externally and heat shrink the battery pack and use a JST connector so I easily remove the battery...
                    12-31-2023, 06:04 AM
                  • Baldbentley
                    repairing a Fluke 335 clamp meter
                    by Baldbentley
                    I am repairing a Fluke 335 clamp meter. After contacting fluke it appears there is no service manual or circuit board/ component list available. I have determined that there us a faulty PNP bipolar junction transistors shown in the pictures. I am having trouble sourcing this transistor. I pulled a good one off of the board and tested it with my component analyzer but I cannot find anything that matches the specifications. Any help locating this part or a replacement would be greatly appreciated.

                    Thanks...
                    10-18-2023, 02:05 AM
                  • chth96
                    Is it possible to test small ceramic disc capacitor with analogue meter?
                    by chth96
                    I read EBOOK of Testing Electronic Component and found that

                    "In order to test the small blue resin coated ceramic disk capacitor which has 104 50v specification,it is possible to test this small ceramic capacitor by making use of analogue meter.
                    Set to times 10Kohm that has 12v output from the probe to check disorder of ceramic capacitor.
                    It is not uncommon that testing result of digital capacitance meter is okay,But It show shorted reading when you check it with analogue meter."

                    Is it really possible to test small ceramic disc capacitor with analogue...
                    03-09-2024, 10:03 PM
                  • Ross Kohler
                    Diagnosing South Bridge (FH82H370) on Asus H370-Pro Gaming Motherboard
                    by Ross Kohler
                    Hi,

                    I'm learning about motherboard repair and I believe I've traced the issue down for the South Bridge on the particular motherboard I'm working on. My path of concluding that:
                    - There's no sign of any attempt to power on when pushing the power button.
                    - No PSON signal is reaching the 24-pin ATX connector.
                    - The Super IO chip is receiving the PS_SWITCH signal from the power button and is relaying this signal back to the South Bridge.
                    - The Super IO is not receiving the S_SLPS#_R signal back from the South Bridge
                    - If I pull the Super IO S_SLPS#_R pin...
                    04-16-2024, 09:36 AM
                  • jorpec
                    Changing the scale of an analog meter
                    by jorpec
                    Hi

                    I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
                    I wonder how i can accomplish this so the meter would be precise at any temperature ?

                    Thnaks
                    01-23-2023, 10:37 AM
                  • Loading...
                  • No more items.
                  Working...