• Banner Engineering India Private Limited

Foreground Suppression Sensors

Banner Engineering has introduced World-Beam® QS18 adjustable-field Foreground Suppression Sensors, designed to reliably detect objects regardless of colour, reflectivity, surface irregularities or background conditions. The sensor’s universal mounting design makes installation quick and easy, while a simple screwdriver adjustment allows for precise set-up of sensing range. With a compact and IP67-rated sealed housing, the QS18 adjustable-field sensors deliver an exceptional sensing solution for small or difficult-to-reach areas. The QS18 sensors operate in diffuse mode, detecting light returned by the background, but ignoring light returned by the object. The concept is similar to that of a polarized retroreflective sensor; if the sensor cannot see the background (reflector), the output switches on—indicating that the target object is present. These compact sensors are available in two adjustable cut-off ranges: 15-40 mm and 30-200 mm. The short-range models are ideal for detecting thinner objects that are closer to the background. These sensors are particularly useful if the following application conditions are present: target object is reflective; reflective background; detecting dark objects on light backgrounds; and sensors are aimed toward factory lights. Features and advantages in challenging material handling and packaging applications: adjustable range – short-range models offer 15 to 40 mm sensing range; long-range models offer up to 200 mm sensing range; reliable detection when a fixed background is present and the object colour or shape varies; objects detected to the face of the sensor (no dead zone); simple multi-turn screw adjustment of cut-off distance; crosstalk immunity algorithm allows two sensors to be used in close proximity; and visible red emitter for simple sensor alignment.