Magnetic flap level meter signal output principle
  Magnetic level gauges are widely used in liquid level measurement and control in the production process of power, petroleum, chemical, metallurgy, environmental protection, shipbuilding, construction, food and other industries. The product is developed based on the buoyancy principle and magnetic coupling. The red-white interface of the indicator is the actual height of the liquid level inside the container, thus achieving a clear indication of the liquid level.
    Magnetic flap level meter signal output principle:
    Let us first understand the structure of the magnetic flip level gauge: Each magnetic flip level gauge has a cavity to hold the float, called the main pipe or shell, which is connected to the container via a flange or other interface. Make up a connected device; so that the liquid level in the cavity is the same height as the liquid level in the container, so the float in the cavity will rise and fall as the liquid level in the container rises and falls; The column display, because we installed the magnetic steel at the junction where the float sinks into the liquid and the floated part when manufacturing the float ball. When it floats up and down with the float surface, its magnetic property is transmitted through the shell to the column display. Push the magnetic column over 180°; because the magnetic column is a cylinder composed of red and white two and a half cylinders, flipping the 180° direction to the outside of the column display will change the color. The boundary between the two colors is the liquid level. height.
    The working principle of the magnetic flap liquid level meter with remote transmitter in its transmitter part and electrical part is to use a magnetic float to act on the reed switch to cause the change of the resistance of the connected circuit, thereby making the sensor Part of the resistance signal corresponding to the change of the liquid level can occur. Through the signal converter, the resistance signal can be converted into a 4-20 mA current signal. The electronic components of the magnetic flip level gauge have almost no energy storage components such as capacitors and inductors. You can stack communication protocols or you can use bus communication.
    In order to expand the scope of use of the magnetic flip liquid level gauge, it is also possible to add a liquid level transfer device according to relevant standards and requirements to output a variety of electrical signals. Among them, 4 ~ 20mA current signal is a more commonly used one. For example: while monitoring the liquid level, the magnetic switch signal can be used to control or alarm the liquid level; a 4~20mA transmission sensor is added on the basis of the column level gauge, and the liquid level is monitored at the same time as the liquid. The change of the bit is transmitted to the control room through the transmission sensor, cable and instrument to achieve remote monitoring and control. This is the principle and process of the actual remote signal output of the magnetic flap level gauge.
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