
Instruction Manual
CyberScan pH1500
46
10
pH THEORY
The measurement of pH plays an important role in quantifying and
controlling acidity and alkalinity levels for industry and research. pH is
a measure of the acidity or alkalinity of a solution and can be
represented by this equation:
pH= -log [H+]
With [H+] representing the concentration of hydrogen ions in the
solution. pH is sometimes referred
to as power of the hydrogen ion in a solution.
By using a pH meter, you can most precisely determine exact pH
levels of solutions. For example, rather than saying that lemon juice is
quite acidic, you can say that lemon juice has a pH of 2.4. an exact
pH value is often required to control or optimise acidity levels for
manufacturing processes or for basic research.
pH values generally range from 0 to 14, with a pH value of 7 being
the neutral point, or the value of pure water. The pH values above the
neutral point represent increasing alkalinity, whereas pH values
below the neutral point represent increasing acidity.