how to make your digital weighing scale correct
Press and hold the calibration button to adjust the weight of the scale until it matches that of the weight on it. This ensures an accurate reading for anything you weigh with the scale. Push the calibration button once to lock in the weight, then turn the scale off.he scale is ready for calibration. Kimberly Nedrow/Demand Media. Place a weight on the scale for about five seconds, so the scale measures it. Use a test weight, if you have one that came with the scale, or an exercise weight--you can't just use any household item because it's important to know the exact weight.