Banner Engineering World-Beam QS18 sensors

The Banner Engineering World-Beam QS18 adjustable-field foreground suppression sensors have been designed to detect objects regardless of colour, reflectivity, surface irregularities or background conditions.

The sensor’s universal mounting design makes installation quick and easy, while a screwdriver adjustment allows for precise set-up of sensing range. With a compact and IP67-rated sealed housing, the QS18 adjustable-field sensors deliver a sensing solution for small or difficult-to-reach areas.

The QS18 adjustable-field foreground suppression 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 polarised retro-reflective 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 and 30-200 mm. The short-range models are good for detecting thinner objects that are closer to the background.

The sensors are useful for situations that involve target objects being reflective, reflective background, detecting dark objects on light backgrounds, and if sensors are aimed towards factory lights.

The sensors have an adjustable range; short-range models offer 15-40 mm sensing range and long-range models offer up to 200 mm. They have reliable detection when a fixed background is present and the object colour or shape varies, and objects are detected to the face of the sensor (no dead zone).

Other features include: simple multi-turn screw adjustment of cut-off distance; crosstalk immunity algorithm allows two sensors to be used in close proximity; and a visible red emitter for simple sensor alignment.