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How To Calibrate Scales With Weights, Calibration Instructions And Manuals

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Central Carolina Scale Service, Repair and Scale Calibration Information

This calibration site is designed to give you some valuable information regarding calibration of digital scales. We don't plan on telling you how to calibrate a scale with nickels or how to calibrate a scale with a coin but we do plan on providing you some valuable insight and recommendations regarding accuracy and precision. We often are asked how to calibrate a digital weight scale and in some cases the end user can do this without much trouble. However, in a lot of cases it is best to let a trained scale technician with certified and accurate test weights perform the scale calibration procedure.

We generally do not deal with household products like instructions on how to calibrate digital bathroom scales, our focus is mostly laboratory and industrial applications. For laboratory settings we get asked quite often how to calibrate a 500 gram scale. Calibration of a scale is a procedure in which a licensed scale technician uses a known cal test weight certified by the State of North Carolina Bureau of Weights and Measures, to test and adjust the response of a mechanical or electronic weighing system to the following tests; The display indicator must show zero when there is no weight on scale. When a known weight is applied the indicator must display the exact amount of applied weight within a specific tolerance. When weight is applied or removed incrementally the scale must display the weight equal to that on the scale within the specified tolerance mentioned above.

digital weight indicator
1000g balance
truck scale

Scale calibration of a scale is a procedure in which a certified scale technician uses known weight certified by the State of North Carolina Bureau of Weights and Measures, to adjust the response of a mechanical or electronic weighing system to the following tests; The indicator must show zero when there is no weight on scale. When a known weight is applied the indicator must display the exact amount of applied weight. When weight is applied or removed incrementally the scale must display weight equal to that on the scale display. How do you calibrate a scale with no weights?

All scales ideally need to be calibrated when first placed into service to insure accurate operation. Any scale will drift away from its original calibration in time. Wear of mechanical components, age and degree of use, all contribute to calibration drift. Many states require that any scale used to buy/sell based on weight must be NTEP approved and inspected and certified as to it’s accuracy. Normally, we recommend calibration every quarter by a trained scale technician with certified test weights.



 

 

 

 

 

 


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