SICK PLS101-312 Through-Beam Photoelectric Sensor

The SICK PLS101-312 Through-Beam Photoelectric Sensor is a 24 V DC device in SICK’s PLS family, engineered for safety-critical detection in automated production lines and packaging facilities, where a reliable, long-range beam interruption signal directly interfaces with controllers, guards, and safety relays. Configured for through-beam operation, the unit offers a safeguarded detection range up to 4 meters with a 4 m resolution and a 180-degree maximum field of view, enabling coverage of wide openings and large work envelopes with a single sensor, reducing the need for multiple paired emitters and receivers. Power consumption runs around 30 W, and the system provides an adjustable maximum response time to accommodate varying conveyor speeds, machine cycles, or rapid stop requirements, while maintaining robust operation in environments with ambient light, dust, or mechanical vibration. Typical applications include machine guarding and presence detection on conveyors, access gate monitoring, and other scenarios where consistent, long-range sensing and reliable beam interruption signals are essential for safe and efficient automation, particularly in harsh industrial environments.