The AEC2-R4 online conductivity controller developed and produced by Daruifuno is used with the ASC200 inductive conductivity sensor. It can be connected to a voltage output type inductive conductivity sensor for measurement. Conductivity is calculated by measuring the change in electric field strength caused by electromagnetic induction. Different from contact-type conductivity, the contact-type conductivity electrode is in direct contact with the liquid to be measured, and the conductivity is calculated by measuring the voltage difference between the current passing through the electrode and the liquid. The online inductive conductivity controller has a wide measurement range and is compatible with the conductivity range of 0~2000mS/cm. In addition to measuring conductivity values, the controller also supports the calculation and display of other related parameters, such as resistivity values, TDS values, salinity values, and acid-base concentration values. This function meets the…