Connect with us

Old multimeter

Discussion in 'General Electronics Discussion' started by pidja105, Jul 31, 2016.

Scroll to continue with content
  1. pidja105

    pidja105

    106
    1
    Oct 16, 2015
    Hello,
    I found one MI 7043 old analog multimeter. My friend used it in past and he gave it me. Voltage meter is ok, amp meter is ok(but I have to place new metal contacts inside becouse he damaged that with measuring high amp), but ohm meter does not work, when I short cables at x1 I get about 8ohm, when I measure 100ohm resistor, same, when I measure 470ohm resistor, same too, when I measure that at x10 I get zero, and at other scales same. Maybe he modified multimeter for measuring continuity instead of ohms, battery is ok, what I can do?
     
  2. pidja105

    pidja105

    106
    1
    Oct 16, 2015
    If he modified, he did that only with adding some wires.
     
  3. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
    This may seem like a lame question but are you zeroing the meter first?

    Chris
     
  4. shrtrnd

    shrtrnd

    3,826
    526
    Jan 15, 2010
    Trivia along the subject.
    When I was a kid, I repaired the test and measurement equipment for the school electronics instructor.
    The number one VOM damage I repaired, was some kid forgetting to select the proper meter function, and then
    applying the test probes to the circuit. As in, leaving the meter on ohms, and then testing a couple of hundred volts
    in a circuit, blowing the meter components.
    If you haven't already, open it up and look for physical component damage.
     
    CDRIVE likes this.
  5. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
    Yeah, many of them were damaged on the "Current" functions too! Bent movement vanes was another glaring indication of abuse.

    Chris
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-