Laser Photoelectric Sensor | 2mm Visible Spot | 15cm Adjustable Distance

This M12 diffuse reflection laser sensor offers precise detection for demanding automation. Unlike a standard photoelectric sensor, this one uses a focused laser beam instead of an LED. It creates a small, visible 2mm spot to accurately detect tiny objects up to 15 cm away. Features and Benefits - Visible 2mm red laser spot - Shows the exact detection point, making alignment simple and ensuring you hit the right feature. - Sensing distance adjusts from 5-15 cm - Lets you set the detection range precisely and use background suppression to ignore objects further away. - Fast 500µs response time - Keeps up with quick production lines, ensuring every part is detected. - Both NPN and PNP outputs in one unit - Works with any PLC, whether it needs a sinking or sourcing input. Applications - Electronics assembly for finding small parts on circuit boards. - Pharmaceutical lines for counting tablets or checking vial caps. - Robotic cells to confirm a gripper has picked up a small part. How They Work A photoelectric sensor, also known as an optical sensor or light sensor, detects the presence or absence of an object by emitting a light beam and measuring the light reflected back. This particular laser photoelectric sensor uses a visible laser spot with a 2 mm spot size. When an object breaks or reflects this light, the sensor’s output changes, indicating detection. This model operates on a diffuse reflection principle, meaning it detects light reflected directly from the target object itself. 3 Main Types of Photoelectric Sensors There are three primary types of photoelectric sensors. Through-beam sensors have a separate emitter and receiver, detecting an object when the beam between them is broken. Retro-reflective sensors combine the emitter and receiver in one housing and use a reflector to bounce the light back; an object is detected when it interrupts this reflected beam. Diffuse reflection sensors, like this laser photoelectric sensor, also have the emitter and receiver in one unit but detect light directly reflected off the object itself. Common Applications Photoelectric sensors are widely used for object detection in various industrial and commercial settings. Their ability to precisely detect objects, regardless of material, makes them versatile. Common applications include counting items on a conveyor belt, positioning components in automated machinery, and monitoring fill levels in containers. The 15 cm adjustable sensing distance and 2 mm visible spot make this sensor suitable for tasks requiring accurate detection of small objects or precise positioning. The Core Components At its core, a photoelectric sensor comprises an emitter, a receiver, and the necessary electronics for processing signals. The emitter, in this case, generates a visible laser spot. The receiver detects the reflected light. These components are housed within a durable metal casing with a 12 mm diameter. The sensor operates on a 10-30 VDC power supply and provides both NPN and PNP output types for integration into different control systems. The 3 Main Operating Modes Photoelectric sensors typically operate in three main modes: light-on, dark-on, or complementary. In light-on mode, the output is active when the sensor detects light. Conversely, in dark-on mode, the output is active when no light is detected. Complementary mode provides both light-on and dark-on outputs simultaneously. This laser photoelectric sensor, with its NPN and PNP output types, offers flexibility to configure the desired operating mode for various detection tasks.