Sensor Switch LJ12A34Z BX Proximity Switch Sensor NPN Three Wire Metal
Inductive proximity sensors are used for non-contact detection of metallic objects. Their operating principle is based on a coil and oscillator that creates an electromagnetic field in the close surroundings of the sensing surface. The presence of a metallic object (actuator) in the operating area causes a dampening of the oscillation amplitude. The rise or fall of such oscillation is identified by a threshold circuit that changes the output of the sensor. The operating distance of the sensor depends on the actuator's shape and size and is strictly linked to the nature of the material:
Sensitivity when different metals are present. Sn = operating distance. Fe37 (Iron) 1 x Sn Stainless steel 0.9 x Sn Brass - Bronze 0.5 x Sn Aluminum 0.4 x Sn Copper 0.4 x Sn
Features: NPN NO (Normally Open) To detect metal object High precision of repeated location Diversified exterior structures Wide voltage range With short-circuit protection and inverted connecting protection Minimize interference by visitokopediae light Easy to install
Specification: Working Voltage: DC 6V - 36V Loaded Current: 300mA Response Frequency: 500Hz Detect Range: 0 - 4mm Switch Appearance Type: Cylinder Type Theory: Induction Sensor Output Pin: NPN 3-wires Normally Open Working Environment Temperature: -25C ~ + 70C Wire Length: 1.2meter Protection degree: IP 65 Body Material: Alloy & Plastic Sensor: Iron 10.5 x 10.5 x 1mm Dimensions : 2.2 x 6cm Net Weight: 85g
Pin-outs: Brown - VCC (+) Blue - Ground (-) Black - Trigger Signal