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Liquid level sensor has two parts: a stem and a float. The stem is stationary and attaches to the top or bottom of a tank. One or more reed switches are hermetically sealed inside and wires going to the outside of the container. The float is a doughnut-shaped object placed around the stem that rises and falls with the level of the liquid. When the level of the float aligns with the level of the reed switch inside the stem, it magnetically actuates the reed switch, sending an electrical signal through the wires to the outside of the container.
The reed switches are available in normally open or normally closed and changeover configurations. And liquid level senors are available in vertical, horizontal form. According to some applications, multi level sensor and continuous level sensor are available as well. The liquid level sensors are commonly used in below industries: aquariums, HVAC, medical, marine uses, wastewater treatment, chemical processing, breweries and wineries, bioprocessing, and more.
The different kinds of liquid level switches include: Optical, Capacitive, Conductive, Diaphragm, Float.
The stem of liquid level sensor has reed switch, and outside of the stem, there is a float. The float rises and falls with the liquid level, once the float reaches the preset point, the level sensor will be triggered.
Yes, a wifi or BLE device can be connected to the liquid level sensor so that the signal can be wireless connected.
