The KS211M C10-30V magnetic switch used in Xuchang mining is induced by a magnet, which means; Magnetism; There are several types of magnets, including rubber magnets, permanent magnet ferrite, sintered neodymium iron boron, etc. commonly used in the market. The switch is like a reed switch. Dry reed tube, also known as dry tongue reed tube, is a passive electronic switching element with contacts. It has a simple structure and small size, making it easy to control and other points. The outer shell is usually a sealed glass tube, which contains two iron elastic circuit boards and is also filled with inertia. Usually, the two pipes made of materials in a glass tube are separated. When a magnetic substance approaches a glass tube, under the action of magnetic field lines, the two huangpian inside the tube are magnetized and attracted to each other, and the huangpian will be attracted together, making the circuit connected to the node connected. After the disappearance of the external magnetic force, the two pipelines separated due to their own elasticity, and the circuit was also disconnected. Therefore, as a circuit switching device that uses magnetic field signals to control, reed switches can be used as sensors for counting, limiting, and so on (mainly used in the production of door and window magnets in Anfangxing), and are also widely used in various communication devices. Precautions for using cylinder magnetic switches: 1) Considering the angle, the distance between two magnetic switches should be 3mm larger than the large hysteresis distance. 2) Magnetic switches should not be installed next to strong magnetic field equipment (such as welding equipment, etc.). 3) When two or more cylinder magnetic switches are used in parallel, in order to prevent mutual interference of magnetic body movement and affect the detection accuracy, the distance between the two cylinder barrels should generally be greater than 40mm. 4) The speed v when the piston approaches the magnetic switch shall not exceed the maximum speed vmax that the magnetic switch can detect. The relationship between the * high speed vmax and the * small action range lmin of the magnetic switch, as well as the action time tc of the magnetic switch lock load, is: vmax=lmin/tc. For example, if the action time t of the electromagnetic valve connected to the magnetic switch is 0.02s and the * small action range lmin of the magnetic switch is 10mm, then the * high speed vmax that the magnetic switch can detect is 500mm/s. If the speed of the cylinder piston is less than 500mm/s, this magnetic switch can be used. If the piston movement speed is greater than 500mm/s and there is no suitable universal magnetic switch available, only magnetic switches with delay function can be selected. 5) The torque for tightening the screws when installing the switch should be appropriate. Excessive torque can damage the switch, while too little torque may cause the optimal installation position of the switch to shift. 6) Regularly check if there is any deviation in the installation position of the magnetic switch. When the piston stops at the set position, for the dual color switch, a green light indicates correct operation, while a red light indicates deviation. KS211M C10-30V Magnetic Switch for Xuchang Mining; nine hundred