The accuracy class of a load cell always refers to its maximum capacity. The load cells cannot be over-dimensioned up to any extent
, dependent on the required scale accuracy
and the smallest portions to be measured
, as the absolute measurement error is directly proportional to the maximum capacity.
The constructive outlay of a specially designed overload protection is always justifiable when the load cells need to be loaded up to their maximum capacity
, where the risk of overload
is always present. Overload protection should be provided to protect load cells in the following typical cases:
- The maximum loads of the load cells are not known.
- If strongly dynamic loads, e.g. falling product to be weighed (pulse loading), are to be expected.