A conductivity cell is a device that is comprised of electrodes that sense the electrical conductivity of a substance, such as water. ... Electrode size, the distance between each, and the pattern of the electrical field present determine this cell constant.

What is conductivity cell made of?

Electrodes in conductivity cells are constructed of a conductive material, such as graphite, stainless steel, or platinum. An AC voltage waveform is applied between the cells, and the resulting current is measured. Conductive ions, such as salts and metals, produce a path for current to flow.

What is the use of conductivity cell?

In addition to monitoring nutrient supply, conductivity measurements can be used to make sure that salt concentrations are in the range tolerated by the plant. Conductivity measurements are simple and fast, making them very practical for making routine assessments of the salt concentrations of water.