The liquid level transmitter emphasizes "changing" and "sending". For example, when the float moves up and down with the liquid level, it will produce an electrical signal of a position in the metal tube, which is called "change". However, this kind of electric signal is usually irregular in size and can't even be used in future circuits. Therefore, a circuit is installed near the pipeline to convert this non-standard electrical signal into a standard electrical signal (such as 4-20MA, 0- 10V and so on). ), can be output to other instruments or equipment for display or control. This device is called "liquid level transmitter".
The liquid level signal is the same as the liquid level sensor.
Liquid level switch: a liquid level switch for control. Many level switches include level sensors/transmitters.
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