Endress+hauser Conducta Gesellschaft Fur Mess- Und Regeltechnik Mbh+co. Kg

Anja Harbig

Stefan Wilke

Gunter Jahl

Daniel Iten

A method for operating a measuring device comprising the following steps: providing a first sample of the liquid; ascertaining an updated calibration function by means of a standard addition method, wherein the first sample is supplemented at least once with a standard solution, which has a known concentration of the measured ion; determining a measured value of concentration of the measured ion in the first sample; providing a second sample of the liquid; ascertaining a measured value of concentration of the measured ion in the second sample as a reference measured ion concentration (c) by means of a reference method; and determining a difference (c) between the apparent measured ion concentration (c) and the reference measured ion concentration (c) and deriving a correction value (c) therefrom for future measured values of concentration of the measured ion in the liquid, as ascertained with the measuring device.

Growing community of inventors

Renningen, Germany

Anja Harbig