What is the allowable error for the accuracy of the weighing scale?

Classification of accuracy levels for weighing scales
The accuracy level classification of weighing scales is determined based on their accuracy level. In China, the accuracy level of weighing scales is usually divided into two levels: medium accuracy level (III level) and ordinary accuracy level (IV level). The following is detailed information about the classification of accuracy levels for weighing scales:
1. Medium accuracy level (Level III): This is the most common accuracy level for weighing scales. In this level, the division number n of the weighing scale is usually between 2000 and 10000. This means that the minimum weight that a weighing scale can distinguish is 1/2000 to 1/10000 of its maximum weighing capacity. For example, a weighing scale with a maximum weighing capacity of 100 tons may have a minimum resolution weight of 50 kilograms to 100 kilograms.
2. Ordinary accuracy level (IV level): This level of weighing scale is usually used for commercial purposes and does not require as high accuracy as the medium accuracy level. In this level, the division number n of the weighing scale is usually between 1000 and 2000. This means that the minimum weight that a weighing scale can distinguish is 1/1000 to 1/2000 of its maximum weighing capacity.
The classification of accuracy levels for weighing scales is crucial to ensure their accuracy in different application scenarios. When selecting a weighing scale, users should choose the appropriate accuracy level based on their actual needs.
The national allowable range of error for weighing scales
As an important weighing device, the weighbridge plays a crucial role in industrial production and commercial trade. In order to ensure the accuracy of weighing results, the country has established clear regulations on the allowable error range of weighing scales. The following is the relevant information on the allowable error of weighing scales based on the latest search results.
Allowable errors according to national metrological regulations
According to national metrological regulations, the accuracy level of weighing scales is level three, and the standard error should be within ± 3 ‰, which is considered normal. This means that if the maximum weighing capacity of the weighing scale is 100 tons, the maximum allowable error in normal use is ± 300 kilograms (i.e. ± 0.3%).
Methods for handling weighing scale errors
When using a weighing scale, there may be systematic errors, random errors, and gross errors. The systematic error mainly comes from the weight error contained in the weighing scale itself, and the random error may be due to the increase in error caused by long-term operation. The methods for handling these errors include eliminating or compensating for systematic errors, as well as reducing or eliminating random errors through multiple measurements and statistical processing.
Notes on
When using a weighing scale, it is important to avoid overloading to prevent damage to the sensor and affect weighing accuracy. At the same time, objects should not be thrown directly onto the ground or dropped from a high altitude, as this can damage the sensors of the scales. In addition, the weighing scale should not be excessively shaken during use, otherwise it will affect the accuracy of the weighing data and may affect its service life.
In summary, the allowable error range of the weighing scale is determined based on national metrological regulations and the specifications of the weighing scale. When selecting and using a weighing scale, users should evaluate it based on their own needs and accuracy requirements, and pay attention to correct operation to reduce errors.