Tank level can be measured in a variety of ways, and each method has its advantages and drawbacks. One of the most common methods for tank level measurements is the hydrostatic method. Hydrostatic pressure is a cost-effective way to measure tank level that doesn’t rely on the measurement being taken directly at the tank, unlike many other methods.
The hydrostatic method uses simple physics to measure tank level. The hydrostatic pressure of a liquid is equal to the height of the liquid above the location of the pressure measurement. The table below demonstrates how certain pressure ranges equal the accuracy of the height measurement.