The basic working principle of the input level gauge is the static pressure level measurement, that is, the principle that the measured hydrostatic pressure is proportional to the height of the liquid. In a liquid medium, the pressure generated at a certain depth is generated by the weight of the medium itself above the measurement point. It is proportional to the density of the medium and the local gravitational acceleration. The proportional relationship between them is reflected by the formula P=ρGH. Where P = pressure, ρ = medium density, G = gravity acceleration, H = depth of the measurement point.
Immersion type liquid level transmitters generally use the piezoresistive effect of diffused silicon or ceramic sensitive components to convert static pressure into electrical signals. Temperature compensated and linearly corrected. Converted to 4-20mADC standard current signal output. The sensor part of the input level transmitter can be directly put into the liquid, and the transmitter part can be fixed by the flange bracket, which is very convenient for installation and use. Solid structure, no moving parts, high reliability, long service life. From water, oil to paste with high viscosity, it can be measured with high precision, without being affected by the foaming, deposition and electrical properties of the measured medium. Temperature compensation. It also features power reverse polarity protection and overload current limit protection.