12mm Proximity Sensor Inductive Proximity Sensor LJ12A3-4-Z/BX

12mm Proximity Sensor Inductive Proximity Sensor LJ12A3-4-Z/BX will detect large metal fields at 4mm distance with great precision. This allows you to accurately measure the distance to an (aluminum) heated bed. The sensor is equipped with a small red detection LED, indicating a nearby object. The sensor has an M12 threading and includes a nut for easy mounting to your 3D printer or CNC machine.

The 12mm Proximity Sensor  LJ12A3 is a NPN Normally Open (NO) type of proximity sensor, which means when nothing is detected the resistance on the black wire is high. Upon detection the resistance will be low and connects to ground. Use the internal pull-up on your Arduino.

Inductive Proximity Sensor LJ12A3-4-Z/BX that detects nearby metal, including aluminum foil; a great solution for heated bed calibration.

This Inductive Proximity Sensor 12mm Proximity Sensor LJ12A3-4-Z/BX operates at 6-36V, so as the signal voltage is the same as the input voltage, also the signal will be 6-36V. You will need to down-convert the voltage to acceptable level for your electronics. Put a 10K resistor between the black signal line and your 5V electronics input to avoid damage.

Inductive proximity sensors are a great way to precisely detect when a metal object is at a given distance. Since this is a non-contact sensor, it is ideally suited to situations where dust, dirt, or liquids may be present. This specific sensor triggers when the sensor tip is 4mm away and features an LED that also illuminates when the sensor is tripped. Mounting this sensor is quite easy – it has a long threaded body allowing for a considerable adjustment.

Features: –

• LED indicator light
  
• cylinder type 3 wire cable
  
• Model: LJ12A3-4-Z/BX
  
• Wire Type: Cylindrical DC 3 Wire Type (Black, Brown, Blue)
  
• Switch Appearance: Cylinder
  
• Theory: Inductive Sensor
  
• Output Type: NPN NO (Normally Open)
  
• Diameter of Head: 12mm
  
• Detecting Distance: 4mm
  
• Supply Voltage: DC 6-36V
  
• Current Output: 300mA
  
• Response Frequency: 0.5KHz
  
• Detect: metal
  
• Operating Temperature -25°C to +55°C (Non-freezing Condition)

12mm Proximity Sensor LJ12A3-4-Z/BX Specifications: –

• 3 Wire Polarity: NPN Detection
• Voltage: DC 6-36V
• Detection Distance: 4mm
• Thread size: M12 X 1
• Output Status: Normally Open
• Output current: 300mA
• Detection objects: Metal and Magnetic Material
• Part number: LJ12A3-4-Z/BX
• Screw Length: 40mm
• Cable Length: 1m

Datasheet: –

datasheetspdf.com/…96182/ETT/LJ12A3-4-Z/1

Package: –

1 x 12mm Proximity Sensor Inductive Proximity Sensor LJ12A3-4-Z/BX

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