Topic | Order 9540

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    • #14045 Reply
      Allen Wait
      Guest

      Hello,

      First of all thank you for a great product. Since purchase it has been my primary test instrument however this afternoon my Mooshimeter boiled my 70% charged Duracell batteries. Luckily I was able to disconnect the batteries before chemical leakage. The meter was placed on a 12V battery with black lead to common to negative and red lead to V to positive of the battery when this occurred. As a precaution I cleaned the Mosshimeter PCB with isopropyl alcohol however after drying off and with new batteries I can connect to the meter but with a 12 V test source (verified by another meter) the voltage varies from -2V to 6V. I have followed the steps described in forum regarding the bur on the negative terminal but the voltage is still all over the place. Have you got any suggestions?

      Regards,

      Allen Wait

    • #14054 Reply
      admin
      Keymaster

      Hi Allen,

      Is it possible that the isopropyl did not completely dry? Most drug store rubbing alcohol is only 70% alcohol and 30% water, if you don’t let the water completely dry before powering the meter, odd behavior can occur. I suggest leaving the PCB out of its case to dry for a day (assuming you’re in a dry place). Dessicant is helpful if you have any (rice works).

      If that does not help let me know and we can dig deeper.
      Best,
      ~James

    • #14064 Reply
      Anonymous
      Guest

      Hi James, thank you for your prompt reply. Unfortunately the problem persists after your recommendations. With a stable 14V DC supply the Mooshimeter varies from 6V to 19V. The source I am measuring is the charge voltage into a lead acid battery. I’m comparing these direct results with a Fluke 789 Process Meter. Thanks again for your help.

      Allen

    • #14069 Reply
      admin
      Keymaster

      Hi Allen,

      Please send me an email at james@moosh.im. I’ll arrange to send you a refurbished PCB.

      ~James

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