Inductive Proximity Metal Sensor 4mm NPN Lj12A3-4-Z/BX

Description Metal Proximity Sensor, which is also called non-contact proximity switch, it is composed of generator and shaping amplifier oscillator vibration in the switch after induction head, and produces an alternating magnetic field when the metal body detected. This Inductive Proximity Sensor has high sensitivity, fast frequency response, high repeat positioning accuracy and also stability and reliable, it can detects metal components in 0~4mm distance, and is widely used in modern industry, such as machinery, metallurgy, transportation, electric power, military industry and so on. The switch contains high-frequency oscillation circuit, detection circuit, amplifier circuit, the solution circuit and the output circuit. When the power is supplied to the switch, the oscillator in the high frequency oscillation circuit generates an alternating electromagnetic field on the detection surface of the switch. When there is a metal close to the switch detection surface, the eddy current inside the metal absorbs the energy of the alternating electromagnetic field in the oscillator. The oscillator is weakened or stopped. Oscillator energy changes in the two states, the detection circuit is converted to a level signal, through the amplifier circuit to amplify the level signal after the trigger circuit to trigger the output transistor transistor circuit to produce a switch signal. Thereby detecting the presence or absence of the metal. To achieve the purpose of metal detection. Specifications: • Model: LJ12A3-4-Z/EX • Type: DC 2 Wire Type (Brown, Blue) • Output Type: NPN NO (Normal Open) • Diameter of Head: 10.5mm • Thread Diameter: 12mm • Detecting Distance: 4mm • Work Voltage DC: 5-36V • Consumption Current: Max 300mA • Dimensions: 62 x 12mm • Cable Length(Approx.): 105cm • USAGE: • Brown: VCC • Blue: GND • Black: Output Note: Due to the difference between the different monitors, the image may not reflect the actual color of the item.