computer hardware, consumer electronics, electronic components

Conductivity meter

Measurement of the conductivity of a liquid is often performed in an apparatus for treating a liquid such as liquid chromatograph or desalter. Conventional methods of measuring the liquid conductivity are mainly classified into an electrode method and an electromagnetic induction method. Electromagnetic induction-type conductivity meters have a transformer portion consisting of a circular excited coil and a detecting coil extending about a passage of a sample liquid. Electromagnetic induction conductivity meters have been formed from a plastic resin casing with sample liquid being transported through the casing. In an immersion-type conductivity meter, the actual detector element or sensor can be immersed in the liquid sample within a liquid tank and/or a reaction tank. In a flow-through-type conductivity meter for connection to a pipeline in which a liquid sample passes, a detector element is usually mounted in such a manner that the sample may flow through the detector element. These types of meters have been generically known as electromagnetic induction-type conductivity meters.



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