Often, the position and number of measurement points for the calibration of a measuring instrument are not specified by a standard. In those cases, close coordination between the calibration laboratory and the user is necessary to define suitable test points. However in principle, the following applies: The larger the measuring range, the greater the risk of a calibration that is performed too superficially. Calibration should therefore always be based on the application and process parameters in question.
However, some types of instruments are standardised and specified by guidelines, for example, the calibration of pressure gauges (DKD-R 6-1). Such requirements describe the exact number of calibration sequences for different accuracy classes before the actual measurement is performed.
The following is an example of the measuring results from one of our calibration certificates for the SD5000: