MEASURING DEVICE FOR MEASURING AT LEAST ONE MEASURAND OF A MEDIUM

A measuring device for measuring a measurand of a medium includes a measuring cell, a measuring cell receptacle for holding the measuring cell, and a measuring apparatus for measuring the measurand, wherein the measuring cell includes a measurement chamber containing the medium and a reference chamber separate from the measurement chamber and containing a reference medium. The measurement chamber and the reference chamber are arranged relative to one another such that the measuring cell can be inserted into the measuring cell receptacle in a measuring position, in which measurements of the measurand of the medium can be performed by means of the measuring apparatus, and can be inserted into the measuring cell receptacle in a reference position, in which reference measurements of a reference variable of the reference medium in the reference chamber can be performed by means of the measuring apparatus.