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Thread: Ohm meter question

  1. #1
    Inactive Member robertbartsch's Avatar
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    Ohm meter question

    OK, I'm building some crossovers and testing some diaphrams and other drivers and I have one of these older inexpensive non-digital Ohm meters from Radio Hack.

    Question: How do you calibrate the Ohm meter readings (measurements) on this unit?

    There is a dial on the face of the meter that adjusts the needle reading for Ohm measurements. Is this something that you need to calibrate from a known source such as an electronic component that has a specified resistence (e.g., an 8 Ohm resister, for example)?

    Yeh, I know ....my knowledge of electonics is seriously lacking....

    ...but thanks for any help!

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    Senior Hostboard Member rontec's Avatar
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    Re: Ohm meter question

    I would check the owners instructions for calibration. I think some of those analog vom's had two adjustment screws for zero and load. It would be good to have known values to check measurements with, both voltage and resistance.
    Or alternative.....Parts Express.
    http://www.parts-express.com/pe/show...number=390-730

  3. #3
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    Ohm meter question


    Old Guy's Avatar
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    Re: Ohm meter question

    Generally the old analogs only had to be adjusted for battery condition

    Touch the probes together and zero it Don't touch the screws.

    Really, you should put that in the drawer and spend 5 bucks to get into almost current technology

    - Harbor Freight Tools - Quality Tools at the Lowest Prices

    Note- cheap batteries won't last in it. Or any meter. Use Alkaline.

    Turn off when not in use!
    Your neighbors called. They like your music.

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