Method for operating an inductive conductivity meter and related inductive conductivity meter

摘要

A method for operating an inductive conductivity meter (1) is described and illustrated, wherein the conductivity meter (1) has a transmitting coil (3) and a receiving coil (4), the transmitting coil (3) has an input (5) and the transmitting coil (3 ) and the receiving coil (4) are inductively coupled together by an electrically conductive medium (8) and wherein an electrical default alternating signal (Uv) generated and the input (5) of the transmitting coil (3) is fed.Der invention, the object Method for operating an inductive conductivity meter (1), in which the accuracy of a determination of a conductivity of the medium (8) over the prior art is improved.The object is achieved in that a frequency of the default alternating signal (U) varies in a frequency interval is that in the frequency interval, a frequency-dependent minimum input impedance at the input (5) of the transmitting coil (3) under Ver A reaction change signal (U) is determined such that a minimum frequency of the response change signal (U) at the minimum input impedance at the input (5) of the transmit coil (3) is determined and that, using the minimum frequency of the response change signal (U), a conductivity of the medium (8 ) is determined.