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Liquid Level Sensing Technology Slide 8

The ability to measure the level of all types of liquids efficiently and accurately requires highly reliable components. These liquid level measurements generally use a liquid level sensor consisting of a stem and float. The float is usually cylindrical with a hole in its center. The hole in the float allows it to ride up and down on the stem of the sensor. The stem is usually plastic and houses the reed switch within it. The stem has boundary points which defines the float’s end movement. The upper end of the stem usually has a plastic build-out where the electrical connections of the reed switch exit through an epoxy seal. The end of these wires may have connectors or free ends to directly connect to external electrical circuits.

PTM Published on: 2012-02-07