In addition to the sensitivity, the zero point slightly varies according to the temperature. The Wheatstone bridge largely compensates for the effect of the individual strain gages. The remaining error is explained by tolerances that cannot be avoided. This small error can be further reduced by appropriate wiring so that modern force transducers have a remaining error of less than 0.05%/10K.
The temperature coefficient of the zero point always needs to be related to the nominal (rated) force, irrespective of what force is measured. For this reason, we recommend using a force transducer with a particularly small TK0 when working under major temperature variations and/or in the partial load range.