M12 Small Photoelectric Sensor (Reflective Plate)

 

M12 Small Photoelectric Sensor (Reflective Plate)

The M12 small photoelectric sensor is a compact and versatile type of sensor used for detecting the presence or absence of objects, measuring distances, and other automation tasks in constrained spaces. Here is an overview of its key features, types, and applications:

Features:

  1. Compact Design:

    • Size: 12mm diameter cylindrical body, suitable for installations where space is limited.
    • Material: Typically constructed from durable materials such as stainless steel or reinforced plastic.
  2. Detection Methods:

    • Diffuse Mode: Detects objects by reflecting emitted light off the object back to the sensor.
    • Retro-reflective Mode: Uses a reflector; detects objects when they interrupt the light path.
    • Through-beam Mode: Separate emitter and receiver units; detects objects when they break the light beam.
  3. Sensing Range:

    • Shorter range compared to larger sensors, but varies by model and detection method, typically from a few millimeters to a couple of meters.
  4. Output Types:

    • Digital Outputs: PNP (sourcing) or NPN (sinking) transistor outputs for interfacing with control systems.
    • Analog Outputs: For continuous distance measurement in certain models.
  5. Environmental Protection:

    • High IP ratings (e.g., IP67) for protection against dust, water, and harsh environments.
  6. Connection Options:

    • Typically feature M8 or M12 connectors, or pre-wired cables.
  7. Adjustability:

    • Sensitivity and range adjustments through potentiometers or teach-in buttons.

Applications:

  1. Manufacturing and Automation:

    • Detecting the presence or absence of small parts on conveyor belts, in assembly lines, or in robotic systems.
  2. Electronics and Semiconductor Industry:

    • Precise detection of small components in production processes.
  3. Packaging Industry:

    • Ensuring correct packaging and detecting small items within packages.
  4. Medical Devices:

    • Used in medical equipment where space is constrained and precision is crucial.
  5. Quality Control:

    • Verifying the presence, position, and integrity of small components in manufacturing processes.


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