Wuxi Hudai Instrument Factory, Wuxi Xingzhou Instrument Co., Ltd. Design and Technology Department, Quality Supervision Department, and Technical Application Service Department. China Manufacturing 2025, Industry 4.0, Intelligent Vision Innovation Office, and everyone share the practical experience of professional engineers on the working principles and practical applications of system, comprehensive, tank, container, box and other liquid levels.
Working principle and application of liquid level gauge
A level gauge is used to measure the height of the liquid level inside a tank or box, and display the height of the liquid level inside. The use of liquid level is very extensive, including magnetic flap level gauges, glass tube level gauges, level transmitters, two-color quartz tube level gauges, float level gauges, etc. Today, I will introduce to you the working principles and applications of various liquid level gauges.
Magnetic level meter
Main principles
Magnetic flip column level gauge, also known as magnetic flip plate level gauge, is mainly designed and produced based on buoyancy and magnetic principles. The position of a float with a magnet (referred to as a magnetic float) in the measured medium is affected by buoyancy. The change in liquid level leads to a change in the position of the magnetic float, and the static magnetic coupling effect between the magnetic float and the magnetic flip column (also known as the magnetic flip plate) causes the magnetic flip column to flip at a certain angle (with different colors applied to the surface of the magnetic flip column), thereby reflecting the liquid level inside the container.
Electronic modules and transmitter modules composed of sensors (magnetic reed switches) and precision electronic components can transmit output resistance value signals, current value (4-20mA) signals, switch signals, and other electrical signals. Thus achieving the combination of on-site observation and remote control.
Scope and characteristics of application
It has the advantages of simple structure, convenient use, stable performance, long service life, and easy installation and maintenance.
Magnetic flip column level gauges can be almost applicable for liquid level measurement and control in various industrial automation processes. It can be widely used for liquid level measurement, control, and monitoring in fields such as petroleum processing, food processing, chemical engineering, water treatment, pharmaceuticals, electricity, papermaking, metallurgy, ships, and boilers.
Publisher: tt005 Date: November 14, 2016
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