The M18 photoelectric sensors feature an integral right-angle prism that has been designed to improve the reliability of conveyor control. These right-angle sensors are designed to be flush-mounted on to the conveyor side, looking across the belt or rollers resulting in a slim-profile and secure mounting that is unlikely to be struck and damaged. Because the prism is an integral part of the sensor, performance is not compromised, contrary to when mirror accessories are used. The sensors produce high-intensity pulsed visible red (660nm) light that offers high immunity from interference from other bright light sources. Built-in diagnostics aid set-up and monitor sensing stability during operation. Some models include a fourth wire output that alerts the control system if there is dirt build-up during operation so that any deposits can be removed from the easy-to-clean lens before object detection becomes critical. Each sensor is constructed in a rugged, M18 metal housing, has very high shock resistance and is sealed to IP67. Operating voltage ranges from 10 to 30VDC, and the sensor can switch an output current of 200mA. In addition, the sensing range is stable from -25 to +55°C and the devices are short-circuit and inverse-polarity proof and overload-protected.
