The measurement of electrolytic conductivity is used to determine the amount of dissolved ionized material in a solution. It is most commonly determined by measuring the electrical conductivity between two metallic electrodes placed into the solution. Inductive conductivity is a non-contacting conductivity measurement made between two toroidal magnetic coils located inside a sensor that are inductively coupled through the solution’s conductivity. Since the toroidal coils are located inside the sensor’s PVDF (polyvinylidene fluoride) body, the inductive sensors are ideal for applications where corrosion or coating of the metallic electrodes will occur.
Inductive sensors excel in the higher conductivity ranges and in applications where coating is a problem. The chemically resistant PVDF (Kynar) body is excellent for corrosive environments. These sensors are ideal for measuring high conductivity solutions and percent concentration measurements. The measurement range of the inductive sensor is from 50 µS to 1000 mS.
The Model S80 inductive conductivity sensors have the same ¾-in.-diameter body as the rest of the S80 sensors. A wide array of installation methods are available—insertion into a pipe with a compression fitting or a valve retractable design for entry and removal into a pipe without shutting off the flow. Immersion into tanks or channels with a standpipe and various flow cells are also available.
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Electro-Chemical Devices
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