Hardness Sensor
Water hardness is determined by the minerals that are dissolved in it.
General hardness is a false term that is commonly mistaken with carbonate hardness or temporary hardness, which is actually related to alkalinity and refers to the "buffering capacity" of the water (its ability to resist pH changes). This means that if the carbonate hardness is high, the pH will be extremely stable, however if the carbonate hardness is low, the pH of the water will be able to change freely. The word general hardness should be replaced with the shorter term "hardness."
Water hardness is measured as the number of ions that have lost two electrons (divalent cations) in the tested water and is thus connected to total dissolved solids. The water becomes "harder" when more divalent cations are dissolved in it.
The feature requires substantial testing loads.
The testing equipment is simple to use, with indentation visible through a microscope or eyepiece. It is not sensitive to deflection, making it easy to test.
Application: ETP, Chemical Plants.