This selection assistant will help you find the right test weight for your scale. The correct selection of calibration or test weights is therefore a fundamental requirement for the adjustment and calibration of scales.
A scale can never be more accurate than the test weight used for its adjustment – its tolerances are important.
Example:
Weighing range max 2000 g = 2 kg
Readability d = 0.01 g = 10 mg
The test weight is usually identical to the weighing range: test weight has a weight size of 2 kg.
The accuracy of the test weight results from the readability d of approx. ±10 mg.
The appropriate test weight with tolerance ±10 mg and weight size of 2 kg can be found in class F1.
The minimum test
For scales with a With a maximum load of up to 25 kg, it is possible to carry out almost all metrological tests for the weighing range with just ONE test weight (nominal value). The nominal value of the external adjustment weight is usually used for this (look in your operating instructions or the operating software supplied with your scale). Please note that the nominal value is always higher than 80% of the maximum load.
The complete test
If you want to check the weighing range (measurement range) of your scale for requirements in the maximum range, this method is ideal. To do this, you need test loads of 25%, 50%, 75% and 100% (or at least 80%) of the maximum load. The highest test load of 100% or at least 80% should not be a combination of different weights, but should consist of ONE weight.
