Leuze ET318B.3/4P Diffuse Sensor

Leuze ET318B.3/4P Diffuse Sensor

The Leuze ET318B.3/4P is a versatile and robust diffuse reflection sensor designed for long-range object detection up to 1 meter. It uses a 620 nm red LED for precise identification across surfaces of varying reflectivity—from white (90%) to black (6%), ensuring dependable operation in applications requiring contrast-insensitive sensing.

This sensor combines compact cylindrical housing (Ø18 mm x 46 mm) with an M18 x 1 mm thread, allowing quick integration into existing systems. Its PNP transistor output supports both light and dark switching, enhancing compatibility with diverse industrial control systems. A built-in Teach button simplifies configuration, optimizing sensitivity without complex setup procedures.

Encased in a durable ABS plastic housing and protected by an IP67 rating, the ET318B.3/4P is made for demanding environments with operating temperatures from -40 to +60°C. The sensor comes pre-wired with a 2 m PUR-sheathed cable, offering reliable signal transmission and flexibility in cable routing.

This sensor is ideal for use in logistics, packaging, machine automation, and assembly lines, where long-range and reliable diffuse sensing is critical.

Key features :-

Applications :-

• Automated Production Lines
  Detects various parts or products moving along conveyors—whether plastic, metal, matte, or glossy—ensuring seamless process flow and minimizing false detections.
• Packaging and Sorting Systems
  Ideal for detecting the presence or absence of packages, ensuring that wrapping, labeling, or filling stages operate only when items are correctly positioned.
• Material Handling in Logistics
  Used to monitor item flow in logistics hubs, it identifies packages with varying surface characteristics, including dark or non-reflective materials.
• Assembly Line Verification
  Detects components at specific checkpoints to verify correct placement or presence before proceeding to the next assembly step.
• Warehouse Automation / Robotics
  Mounted on automated guided vehicles (AGVs) or robotic arms for environment awareness and object interaction.
• Plastic or Wood Processing Machines
  Monitors the approach of materials on feeder belts, especially useful in environments with dust or vibrations.

Precautions:

• Ensure Correct Wiring: Incorrect connections can cause sensor failure
• Avoid Overvoltage: Operating within 10-30V DC prevents damage
• Protect from Extreme Heat: Avoid installing near high-temperature sources
• Regular Cleaning: Keep the optical lens free from dust and debris for optimal performance

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