Level switches and level gauges
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In what situations are level switches and level gauges used respectively?
Level switches are primarily used to monitor the liquid level in storage tanks, providing alarms for when the level reaches the upper or lower limits, or to detect whether there is liquid in a pipeline (dry protection). In simpler terms, it is to prevent the storage tank from overflowing or running dry. Level gauges are primarily used to monitor the liquid level in storage tanks at all times. Level switches and level gauges are commonly used in explosion-proof petrochemical applications, but they are also employed in industries such as food processing, transportation, power generation, and pharmaceuticals. :lol
A level switch is used to detect whether the liquid level has reached the target position and to switch on or off automatically; the difference lies in its ability to determine exactly where the liquid level is. In fact, a float valve is a type of level switch
The Y-level switch is usually a digital signal, while the level and connection changes are analog signals; it depends on what type of control is required on-site
The signal types are different: one is digital, and the other is analog; it depends on which type you need
It is generally used for on-off control, level alarm, and similar applications； Level gauges are used to indicate the height of the liquid level
The question is: a level gauge is used to measure the height of the liquid in a tank, and switches are only meant for high or low alarm functions. What function do you want to achieve?
One is digital switching, and the other is local display.