Q20PDQ: 78211 - Banner 250 mm PNP Diffuse Sensor

The Banner Q20PDQ: 78211 is a high-performance diffuse-mode photoelectric sensor equipped with a visible red LED beam and a sensing range of up to 250 mm. Its diffuse sensing mode allows it to detect objects directly without requiring a separate reflector, making it ideal for compact installations. The sensor features a durable thermoplastic housing in a rectangular form factor and is built for long-term use in harsh conditions. With an IP67 rating and NEMA 4X certification, it resists dust, water, and chemical exposure—perfect for washdown areas and dusty shop floors. This sensor supports PNP output and operates on a 10–30 V DC power supply, with discrete I/O and a standard M8 connector for quick and easy installation. It includes a potentiometer adjustment to fine-tune sensitivity based on the target's reflectivity and distance. Its internal circuitry enables a fast output response time of 0.8 ms and a repeatability of 155 µs, ensuring accurate operation in dynamic production environments. The acrylic lens protects the optical system, while the integrated LED indicators provide clear status feedback during operation. With a temperature operating range of -20°C to 60°C and 95% max humidity tolerance, the Q20PDQ sensor is trusted by engineers for uninterrupted performance in Indian industrial setups. To explore full integration details, access the official Banner Q20PDQ datasheet.

Applications of Q20PDQ: 78211 - Banner 250 mm PNP Diffuse Sensor

The Q20PDQ: 78211 is widely used in assembly lines, conveyor-based detection systems, and light-duty packaging machines where space is limited and precision matters. In electronic component handling, it detects small parts with accuracy without requiring external reflectors. In FMCG packaging zones, the sensor identifies boxes or trays as they move across belts, triggering downstream labeling or sorting processes. It is also well-suited for robotic pick-and-place applications where short-range detection is needed with minimal setup complexity. The fast response, compact body, and background-independent sensing make the Q20PDQ sensor an ideal solution for engineers and integrators working in fast-paced, dust-prone, or constrained industrial environments. Its plug-and-play compatibility and robust design reduce downtime, simplify installation, and ensure long-term reliability.