Magnetic level gauge What if the remote signal output? Now please listen to Yijia Xiaobian to introduce it to you.
First of all, let's understand the structure of the magnetic flap level gauge: each magnetic flap liquid level gauge has a cavity to accommodate the floating ball, which is called the main pipe or shell. It forms a connector with the container through flange or other interfaces. In this way, the liquid level in the cavity is the same height as the liquid level in the container, so the floating ball in the cavity will rise and fall with the rise and fall of the liquid level in the container A turning column display is installed outside the cavity, because magnetic steel is installed at the junction of the submerged liquid and the floating part of the floating ball during the manufacturing of the floating ball. When the floating ball and the floating ball rise and fall with the liquid level, its magnetism is transmitted to the turnover column display through the shell, pushing the magnetic column to turn 180 degrees; because the magnetic turning column is a cylinder composed of red and white half cylinders, it is turned 180 ° and then turned to the front Turn the column outside the display will change the color, the junction of the two colors is the height of the liquid level.
The working principle of the magnetic flap liquid level meter with remote transmitter is that the magnetic float acts on the magnetic spring switch to change the number of resistance connected into the circuit, so that the sensor part can produce the resistance signal corresponding to the liquid level change. Through the signal converter, the resistance signal can be converted into 4 ~ 20mA current signal. There are almost no energy storage components such as capacitors, inductors and so on. Communication protocol can also be used.
To expand Magnetic level gauge According to the relevant standards and requirements, liquid level transmitting device can be added to output a variety of electrical signals. Among them, 4 ~ 20mA current signal is a common one. For example: while monitoring the liquid level, the magnetic control switch signal can be used to control or alarm the liquid level; on the basis of the turnover column level gauge, a 4 ~ 20mA transmission sensor is added to monitor the liquid level on site, and the change of the liquid level is transmitted to the control room through the transmission sensor, cable and instrument to realize remote monitoring and control.