Eddy current proximity switches which switch is sometimes called inductive proximity switches. It is the use of conductive objects in close proximity switch that can generate an electromagnetic field, so that the internal objects produce a vortex. The eddy current reaction to the proximity switch, the switch internal circuit parameters change, which recognizes the presence of conductive objects closer, and then control switch on or off. This proximity switch can detect an object must be a conductor. Proximity switch selection for different specimen materials and different detection ranges, should choose different types of proximity switches, so that it has a high cost performance JG40L-Z20AH in the system, for which should be followed in the selection the following principles: 1.1 When the specimen is a metal material, should be used in high-frequency oscillation type proximity switches, proximity switches of this type of iron and nickel, A3 steel type detect the most sensitive detection. Aluminum, brass and stainless steel type specimen, the detection sensitivity is low. 1.2 When the sample is non-metallic materials, such as; timber, paper, plastic, glass and water, J, should be used in capacitive proximity switches. 1.3. When the metal and non-metal body to conduct long-range detection and control JG40L-Z20PH, should be used in photoelectric proximity switches or ultrasonic proximity switches. 1.4. When the body is for the detection of metal, do not ask if the detection sensitivity, the choice of inexpensive magnetic proximity switch or Hall proximity switches. HED-KHF DC10-36V provided by the Shenyang Electric Co., the people. Shenyang on China Electric Co. (www.zsmsy.com) is specialized in the "high-low-voltage inverter, high and low voltage soft starter, magnetic switches, programmable logic controller (PLC)" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Wei Song.