My meter wont measure current

Discussion in 'General Electronics Chat' started by 1-3-2-4, Apr 14, 2012.

  1. 1-3-2-4

    Thread Starter Active Member

    Dec 26, 2008
    194
    1
    This is odd since I never blew a fuse that I know of or anything like that..

    I hooked it up in series that I wanted to measure Anyways the supply voltage is DC and it always reads 0A

    So I took out my older meter and checked the same way and i was able to see the current which is 780mA.

    Any ideas on what could be wrong?
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    Did you use the correct inputs?
    Is there a fuse inside the meter?
    Can you post a photo of the meter?

    Bertus
     
  3. strantor

    AAC Fanatic!

    Oct 3, 2010
    4,302
    1,988
    You probably blew the fuse & didn't know it. most meters I have used, have 2 current terminals. One fused for 200 or 400mA and the other fused for 10A. So if your meter is fused for low mA and you put 780mA through it then you blew the fuse.
     
  4. 1-3-2-4

    Thread Starter Active Member

    Dec 26, 2008
    194
    1

    yes I used the correct inputs as stated anyways I just checked te fuse and it indeed is blown
     
  5. strantor

    AAC Fanatic!

    Oct 3, 2010
    4,302
    1,988
    I had a meter that would blow it's own fuse. see post #3 of this thread.
     
  6. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    I try to instruct students on how to use a meter properly to avoid blowing fuses.
    I still end up replacing about a dozen fuses every term.

    Rule #1 - Always return the meter to highest AC voltage range after use
    Rule #2 - Always check range setting before connecting leads
    Rule #3 - Always disconnect meter before switching modes
     
  7. 1-3-2-4

    Thread Starter Active Member

    Dec 26, 2008
    194
    1
    It might of happened when switching modes but if it was it was a long time ago.. because I don't ever remember using the meter I have now to measure current.

    lucky for me I had a bag of unopened 250V 10A fuses so yes it works again.
     
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