Reflector Plate | Photoelectric Sensor Accessory | TD Series

This is a reflector for photocell sensors. It works with retroreflective photoelectric sensor systems. It acts as a target, sending the sensor's light beam back to the receiver. Using this reflector creates a clear path for detecting objects. Features and Benefits - Efficient Reflective Surface - The micro-prism pattern sends the light beam back on a parallel path. This makes for a strong signal for the photo eye, even over long distances. - Multiple Size Options - It comes in different sizes, like the small TD-02 or bigger TD-09. This lets you pick the right reflector for your detection range. - Weather-Resistant Build - The sealed, waterproof construction keeps moisture and dust off the reflective surface. This makes it good for automatic gates or factory floors. - Simple Installation - It has pre-drilled mounting holes. You can quickly screw it onto a post, wall, or machine frame. Applications - Conveyor Systems - Put it across from a photoelectric switch to count packages or find breaks in product flow. - Automatic Gates and Garage Doors - It makes a safety beam. If something breaks the beam, it stops the door from closing on a vehicle or person. - Transparent Object Detection - Use it with a polarized retroreflective sensor to reliably spot clear items like plastic bottles or glass. Other sensor types might miss these. How They Work A photoelectric sensor, also known as an optical or light sensor, operates by emitting a beam of light and detecting changes in the reflected or interrupted light. This particular model includes a mirror reflector plate, which means it functions using a reflective detection principle. The sensor sends out a light beam, and if an object breaks this beam or reflects it back to the sensor, it triggers an output. This allows for reliable object detection across various applications. 3 Main Types of Photoelectric Sensors There are three primary types of photoelectric sensors. The first is through-beam, where the emitter and receiver are in separate housings. The second is diffuse-reflective, where the sensor detects light reflected directly off the object itself. The third, which this sensor uses, is retro-reflective. This type employs a reflector, such as the included mirror reflector plate, to bounce the emitted light back to the sensor. An object is detected when it interrupts this light path. Common Applications Photoelectric sensors are widely used for non-contact detection in industrial settings. Their ability to detect objects without physical contact makes them suitable for various tasks. Common applications include presence detection on conveyor belts, counting items as they pass, positioning control in automated machinery, and monitoring fill levels in tanks or hoppers. The detection range varies by model, offering flexibility for different application requirements. The Core Components The core components of this photoelectric sensor, which is made from plastic, include a light emitter and a light receiver. The emitter sends out a focused beam of light, while the receiver detects this light. For reflective detection, a mirror reflector plate is also a crucial component, returning the emitted light to the receiver. These components work together to sense the presence or absence of objects within the specified detection range. The 3 Main Operating Modes Photoelectric sensors typically operate in three main modes. The first is light-on mode, where the output is activated when light is detected by the receiver. The second is dark-on mode, where the output is activated when the light beam is interrupted. This specific sensor offers NPN/PNP output types, which are common for photoelectric switches and determine how the sensor interfaces with control systems. The third mode is often a combination of both, offering greater flexibility.