CALIBRATION IN A LABORATORY REFERENCE METHOD

摘要

The invention relates to a method for calibrating a measuring device, which monitors a measured parameter of a measured medium by means of at least one first sensor, the signal from the first sensor being represented as a measured value by means of a representation formula, and said method comprises the following steps: a current measured value from the measuring device is represented as a current calibration measured value, a laboratory reference sample of the measured medium is prepared with the properties at the point of recording the calibration measured value for a laboratory reference measuring device, the actual value of the measured parameter is determined with the laboratory reference sample using the laboratory reference measuring device and prepared and represented as current laboratory reference measured value, the representation formula is updated using the current calibration measured value and the current laboratory reference measured value, characterised in that at least one earlier value pair of a calibration measured value and a corresponding laboratory reference value determined during an earlier calibration are used to update the representation formula.