# How to Calibrate Scale without Weights?

There are different digital scales available for the home, or in your business (like your kitchen scale, bathroom scale, weight scale or food scale), but you have to calibrate them first before you can use them. There are different brands of digital scales like Primo and Tanita, and each of these brands has different instructions on how to operate them for calibration.
Scale calibration is basically a process used to ensure that a weighing scale provides accurate information. To calibrate an analogue scale, locate any object whose precise weight you know, for instance coins, sugar and flour are all good choices. Put the scale on a stable surface. Place the object on the scale. Allow the reading to stabilize. Then locate the adjustment dial. Usually it is located on the back or side of the scale, and it can be moved up and down or from side to side, depending on its orientation. Then turn the dial in order to move the weight indicator to point to the object weight. Remove the object. Keep in mind that the dial should now return to zero, and the scale is now properly calibrated.
To calibrate a scale, first put the number of items whose weight you are sure about on your scale. Add up the weight of the items. Compare with your scale reading. If there is a difference use the dial or the nob on your scale to correct it.
It will be different for different scale types. Is your scale digital? Does it have weights? There is a process for each individual type. Without Weights www.ehow.com Digital Calibration www.ehow.com
Over time and much use a weight scale will need to be re-calibrated. Most scales now come with a knob either in front or back of the scale that you turn to get the scale back to the right calibration. You should take something that you know the correct weight of and place it in the middle of the scale. If the scale reads correctly then it is ok but if not then you just need to turn the dial till it reads correctly. It may not always go back to zero for the correct calibration.
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