The basic working principle of the input level gauge is the hydrostatic level measurement. In a liquid medium, the pressure generated at a certain depth is generated by the weight of the medium above the measuring point. It is proportional to the density of the medium and the local gravitational acceleration. The formula P=ρGH reflects the proportional relationship between them. Where P = pressure, ρ = medium density, G = gravitational acceleration, H = depth of the measuring point.
No matter what kind of instrument is used, it always has its drawbacks. Take a look at the advantages of the input level gauge and its drawbacks:
The main advantages of the input level gauge are: high measurement accuracy; easy installation; remote transmission of signals remotely; selection of different materials to resist corrosion of various media; suitable for explosion-proof applications; affordable.
The disadvantages of the input level gauge are: the measured signal needs to be converted; the temperature of the high temperature medium exceeding 125° C. cannot be measured; the density of the measured medium must be uniform.