How to Calibrate a Weighing Scale
Calibrating a weighing scale requires weighing something that already has an exact weight, taking the measurement three times to ensure accuracy and adjusting the scale as necessary. Always keep a scale on a flat surface for accurate results with helpful information from a practicing dietitian in this free video on diets.
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Hello my name is Cher Pastore and I'm a registered dietitian and certified diabetes educator with CAP Nutrition LLC in New York City. In this clip we're going to talk about how to calibrate the weighing scale. Weighing scales are important in terms of helping a person lose weight, it's the only way we have to monitor how much the person weighs. In addition it could be important for other things in case you ever have to send a package so it's very important that we know the accuracy of the scale that's being used. In this clip we're going to use our digital scale right here. So the first step with this particular scale of course is that we're going to turn it on and we're just going to get it set right up. We're just getting it set to 0 and once it's set at 0, this indicates that it's ready to be used. So step 1 in the process is to take an item that you know the exact amount of. You take this item and you place it right on the scale and wait till we see what it comes up as. So this particular thing is saying that it weighs 2.6 pounds. So we have to do this a maximum of three times to see if we get the same measurement and then we will know that if it's calibrated accurately. So now it's saying 2.6. So we have to take it off and let it zero out again. We have to do his exact process two more times. So if we place it on here, it says 2.6 again which is great. We're just going to do it one more time. And then we're going to know that this is calibrated accurately. So here's the last time. And it's 2.6 which is very good. So this scale is calibrated. In addition you want to make sure that your scale is on a flat surface. You don't want it to be uneven, you don't want it to have be on a rug, you want it be make sure that it's laying flat and zeroed out before you do any kind of measurement. So in the event that your scale doesn't zero out in the very beginning, you must look at your owner's manual and make sure to see how to zero it out. Further, if you get three different weights, you have to take the average of those three weights and that will be your calibration number. Once again this has been Cher Pastore from New York City.