Difference between float level gauge and float level switch

1. Function and scope of application of float level gauge: Magnetic float level gauge can directly display the working conditions and liquid level of various liquids. Equipped with a liquid level transmitter, the position signal of the liquid level can be transmitted over a long distance. The purpose of automatic control and measurement of liquid level is achieved through certain electrical devices. The magnetic float level gauge has direct reading characteristics. There is no need to combine multiple sets of liquid level gauges. When the magnetic float level gauge is directly equipped with a display device, the intermediate transmission of the system signal detection can be omitted, thereby improving its transmission accuracy. Second, the working principle of the float level gauge: the principle of the float level gauge is to use the magnetic floating ball as the measuring element, and the magnetic float level gauge uses the principle of the connector. Introduce the liquid in the container into the main body tube of the liquid level gauge at the same height. The floating ball assembly in the main tube is based on the principle of buoyancy and magnetic coupling. Outside the main body tube is attached a flip column that can reflect the magnetic phenomenon as a display of the liquid level position. With the change of the liquid level in the main body tube, the height of the float assembly also changes accordingly. Therefore, the turning column outside the main body tube is turned 180 degrees. When the liquid level rises, the turning column turns from white to red, and when the liquid level drops, the turning column turns from red to white. The red and white boundaries of the display are the actual height of the medium level in the container. The internal resistance of the sensor changes linearly, and the resistance change is converted into a 4~20mA standard current signal by an intelligent converter, and the HART signal is superimposed for output or on-site liquid crystal display. The principle of the remote transmission function of the float level gauge is that several reed switches are installed at equal distances in the sensor guide rod (this distance is the resolution of the level gauge) and the same number of equivalent resistors. When the magnetic levitation ball floats to a certain position with the liquid level, the reed switch at this position will turn on the corresponding resistance (at least one to N) representing this position. The resistance value at the output represents the liquid level at that point. Then the transmitter becomes the standard current signal output of 4-20mA. For display and adjustment of instruments. The maximum operating temperature of the float level gauge is 80°C and the maximum pressure is 1.0Mpa. Third, the float level switch The float level switch is a medium level measurement with a simple structure, and it is a liquid level controller that is easy to install. Because there is no complicated circuit in the installation, the operation is not affected. The user only needs to select the correct material when selecting the model. It is suitable for measuring liquid, pressure or temperature in any environment. Liquid level switches are widely used in industrial equipment, agricultural equipment, and household appliances. The main structure of the float level switch is composed of a magnetic reed switch and a float. There is a magnetic material in the float. When the float moves up and down with the measured liquid level, the magnetic reed switch is triggered to detect the liquid level position. The floating ball level gauge and the floating ball liquid level switch have the same working principle and different functions. These two kinds of instruments and equipment can be used for sewage treatment in petroleum, chemical, electric power, light industry and pharmaceutical industries, as well as various atmospheric and Measurement and control of medium level in pressure vessels. In addition to the float level switch, the externally attached liquid level switch is a commonly used non-contact liquid level switch. It does not need to contact the measured medium. The measuring probe can be attached to the outer wall of the storage tank to achieve high and low level alarms. Safe and convenient. Related product links: External liquid level switch
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