Right-angle sensors—in the green circle—are designed to be flush mounted on a conveyor side looking across the belt or rollers. As a result, their slim-profile and secure mounting makes them unlikely to be struck and damaged.

The ability to reliably and effectively detect parts presence/absence on conveyor systems is critical to most manufacturing and assembly processes.

However, because conveyors are often close to equipment and pedestrian traffic, frequent damage to vulnerable conventional barrel sensors used in this application can result in unreliable conveyor control and costly down time.

High-performance, M18 photoelectric sensors solve this problem with an integral right-angle prism and a flush-mounting design that reduces the risk of sensor damage and thus, improve the reliability of conveyor control.

Right-angle sensors are designed to be flush mounted on to a conveyor side looking across the belt or rollers. As a result, their slim-profile and secure mounting makes them unlikely to be struck and damaged. Because the prism is an integral part of the sensor, performance is not compromised, as it is when mirror accessories are used.

By contrast, conventional M18 barrel sensors with axial detection have to be bracket-mounted on the sides of the conveyor with the sensor body, plug and cable assembly protruding out from the conveyor. This arrangement makes the sensors prone to accidental collision damage thus compromising conveyor reliability and often resulting in expensive line failures.

Right-angled sensors produce high intensity, pulsed, visible red (660nM) light that provides high immunity from interference from other bright light sources and include diagnostics that 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. All of the main sensor formats—namely diffuse, background suppression, retro-reflective and through-beam—are available in right-angled configuration.

They have a wide operating voltage range of 10 to 30VDC and can switch an output current of 200mA. In addition, the sensing range is stable from -25°C to +55°C and they are short-circuit and inverse polarity proof and overload protected.

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