Tank Level Sensor Pressure

Non pressure level sensors come in a few variations.

Tank level sensor pressure.

The simplest setting for fluid level measurement is the vented or open tank which includes elevated underground or above ground tanks which are provided with openings in the form of vents or in any way allow the medium to communicate with the local atmospheric pressure. Utilizing a gauge pressure transducer allows for real time tank level measurement even in rapidly changing tank applications. The actual shape of the tank is only needed when a customer uses the liquid level to calculate volume. In order to measure the fluid level a hydrostatic pressure sensor should be mounted at the lowest required measurement point which could be an outlet or inlet for example at the bottom of the tank.

The fluid level sensor is usually mounted on the side of the tank as. Since a pressure transmitter provides a linear output signal e g. There are floating sensors such as magnetostrictive level sensors which use an electrical signal to pinpoint the location of magnetic float on a vertical guide. There are ultrasonic and laser level sensors which use sound or light waves to measure the distance from the sensor to a surface.

A gauge sensor used in the hydrostatic method of measuring tank level employs simple physics to produce high accuracy readings. By using a liquid s specific gravity and column height pressure is easily determined. 4 to 20ma signal from zero pressure to the full scale pressure the level can be monitored based on the liquid density and the height of the tank.