Digital Multimeter Problem "-1" !!!

Discussion in 'General Electronics Chat' started by battery.13v, Dec 20, 2015.

  1. battery.13v

    Thread Starter New Member

    Dec 20, 2015
    9
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    Hello everyone, i have a Digital Multimeter DT9250, so yesterday i was firing a fire with a lighter (Electric Lighter), and i was concerned about the electricity in produce to make the spark :oops: .... So i dissassemble it, i bring my digital multimeter, i put it in the highest DC voltage and i test it .... However it suddenly rises to infenity and drops to -1, and stuck in -1 one in all the options(Amperage, Resistance, DC AC voltage, Frequencies, Capacitance) , and the continuity test is the only one who is working now .... Please Help me, i worked for 2 weeks to buy this Multimeter and i don't wan't to throw it to the junk .... :(
     
  2. dl324

    Distinguished Member

    Mar 30, 2015
    3,249
    626

    Welcome to AAC! Please use a normal font and retain large bold fonts for emphasis.

    Open up the meter and see if it has a blown fuse or burned resistor. Don't see how an electric lighter would have been able to damage your meter but, apparently, it happened.
     
  3. JohnInTX

    Moderator

    Jun 26, 2012
    2,347
    1,029
    If you tried to measure the spark voltage, you probably broke the meter. It is rated 1200V max overload. A spark lighter can generate tens of thousands of volts. Sorry.
     
  4. battery.13v

    Thread Starter New Member

    Dec 20, 2015
    9
    0
    Sorry for the posting mistake ..... My digital multimeter is rated to 1000V DC, but we all know that when we exceed the amperage a Fuse blow up and you just have to change it , However in the Voltage testing we don't know what is the first component that will fail if Voltage Exceed the limit, so if someone know, please help me
     
  5. Sensacell

    Well-Known Member

    Jun 19, 2012
    1,132
    267
    Your meter is toast.

    The spark igniter puts out many thousands of volts, this would fry the input circuitry without the fuse even noticing.
     
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  6. Lestraveled

    Well-Known Member

    May 19, 2014
    1,957
    1,215
    Ouch, nice meter. Yea, it is toast. High voltage wipes a lot of things out. The fuse wasn't even in the path of destruction. Live and learn. Sorry guy.
     
  7. battery.13v

    Thread Starter New Member

    Dec 20, 2015
    9
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    Okay...Okay, thanks for your replies anyway ! :(
     
  8. hp1729

    Well-Known Member

    Nov 23, 2015
    1,957
    219
    Bummer. Can you send it back to the manufacturer for repair?
     
  9. battery.13v

    Thread Starter New Member

    Dec 20, 2015
    9
    0
    i buy it from a local store ... i will try !
     
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