Baumer UNDK 20P6914/S35A Ultrasonic Sensor

The Baumer UNDK 20P6914/S35A: 10141538 combines fast response, precision, and durability, making it ideal for demanding automation environments. Its scanning range of 10 to 200 mm provides flexibility across short-distance detection tasks, and with a repeat accuracy of 0.5 mm, it excels in applications requiring consistent measurement. Thanks to its hysteresis of just 4%, the sensor minimizes false triggers and offers stable performance, even when object positioning varies slightly.

With a high sonic frequency of 380 kHz and response time below 10 ms, the detector reacts swiftly, making it suitable for high-speed production lines. It operates reliably with a 12 to 30 VDC power supply and includes a PNP make function (NO) output capable of driving up to 200 mA. Built-in short-circuit and reverse polarity protection ensures operational safety and extends service life. The Teach-in adjustment makes setup straightforward, while a green LED indicator simplifies real-time status monitoring.

Constructed in a space-saving rectangular housing (20 mm x 42 mm x 15 mm) using durable polyester, this sensor fits tight installations without compromising performance. With an M8 connector and an IP67 protection rating, it withstands exposure to water, dust, and harsh environments. It operates seamlessly in temperatures from -10 to +60 °C, making it a trusted choice in sectors like packaging, robotics, material handling, and bottling lines.

The Baumer UNDK 20P6914/S35A is widely used in automated production lines where consistent, non-contact detection is essential. It effectively detects small objects, bottles, or boxes on conveyors—regardless of surface color or transparency—making it a perfect fit for the packaging and bottling industry.

In automated assembly systems, it helps monitor the presence or absence of parts to avoid process errors. Its compact size and quick response allow integration into robotic systems for obstacle detection or alignment tasks. Maintenance engineers benefit from its simple Teach-in setup and status LED, which streamline installation and reduce downtime during sensor replacements.

For engineering students and junior technicians, this sensor provides a practical example of ultrasonic sensing in action—highlighting how sound-based detection can overcome challenges faced by traditional optical sensors, such as color insensitivity and environmental resistance. Whether you're maintaining factory uptime or designing automation prototypes, this Baumer ultrasonic detector offers dependable results with minimal configuration.