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Voltmeter calibration

Discussion in 'Troubleshooting and Repair' started by akhilantivirus, Jan 10, 2013.

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  1. akhilantivirus


    Jan 10, 2013
    how to calibrate a voltmeter?
    Last edited by a moderator: Jan 10, 2013
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    Connect the instrument to a voltage source of known value and adjust the meter such that it shows that value.
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    Or, connect the voltmeter to a known voltage source and document the error.

    Real calibration is more complex. You probably want to do it at a certain temperature, and you also want to take more than one data point.
  4. Jotto


    Aug 24, 2012
    If you require certification of the meter, you will have to send it to a PMEL facility. They have the standards of weights and measurements.

    Meters are very sturdy equipment, some places are required to have the unit calibrated once a year. I have my units calibrated once a year which includes my power supplies, meter and scope.

    You could also use a zener diode that is set to a specific voltage to test your unit. Many ways to test if you think about it.
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