Comparison of Single-Beam Photoelectric Sensor and Retro-Reflective Area Sensor

The use of standard photoelectric sensors to detect objects whose appearance occasionally differs due to certain characteristics often causes problems. More specifically, objects with varying front edges regularly overload devices with single-point detection characteristics. Previously, complex replacement assemblies comprising several photoelectric sensors or expensive light grids have often provided a suitable solution.

However, the new RLG28 retro-reflective sensor, in a standard photoelectric sensor housing with a 60 mm wide detection field, is more simple, elegant, cost-effective, and fully interchangeable with conventional optical sensors.