How can I tell if the calibration of my multimeter is correct or not?
A multimeter is a tool required by workers in many fields, such as electricians, mechanics, and technicians. Most multimeters can measure three different electrical characteristics: voltage, current, and resistance. However, if your multimeter is not calibrated properly or damaged, it will not be able to provide accurate readings. Learn how to distinguish whether a multimeter has been correctly calibrated so that you can recalibrate (if digital) or replace (if analog).
Connect the rear connector of the black grounding cable to the multimeter through the black grounding cable connection slot.
Connect the rear connector of the red wire cable to the multimeter through the installation slot of the red wire cable.
Turn the dial or setting selector on the surface of the multimeter to the lowest ohm setting. Usually around 100 ohms.
Touch the black ground point to the red lead point and check the reading on the multimeter. The reading of a well calibrated multimeter will be accurate to 0 ohms. As long as your multimeter is within 0.05 ohms of this reading, it can be adequately calibrated to make it useful. If not, calibration is required before use.
Many newer multimeters have built-in calibration functions. If your multimeter needs to be calibrated, simply touch the lead and grounding pen tip together, then press the calibration button or twist the calibration knob until the reading is 0 Ohms.
