F77 Series miniature ultrasonic sensors are an ideal alternative to background suppression photoelectric sensors in dirty and dusty application environments and in applications where color variations or transparent targets are the norm. The area sensing provided by the F77 Series ultrasonic sensors is also ideal in applications where the pin-point accuracy of a photoelectric beam is too focused to accurately sense the target.
“F77 series ultrasonic sensors are 100 percent insensitive to color, provide 100 percent reliable clear object detection and ignore target holes and ridges, resulting in a coverage area that is more forgiving than that of most photoelectric sensors,” says Marcel Ulrich, Product Manager. “This is particularly significant, for example, in a printed circuit board application where cuts and holes in the board and shiny copper tracks on a dull background would result in false readings optic-based products.”
These miniature ultrasonic sensors are also highly immune to acoustic interference and have minimal deadband – important attributes for sensors mounted on machinery that uses numerous pneumatic cylinders.
With a tiny 31 mm x 11 mm x 23 mm housing, F77 Series ultrasonic sensors fit in space restricted applications and provide up to 50 Hz switching frequency for fast response times. High visibility LEDs provide users with at-a-glance status indication, and simple, intuitive range adjustments make it easy to adapt to changing needs.
These IP67 rated ultrasonic sensors are rated for use in temperatures ranging from -25…70 degrees C (-14…158 degrees F). A 4-pin Nano-style M8 connector makes installation easy. Switch point versions are offered with either PNP, N.O. (normally open) or N.C. (normally closed) outputs. For continuous position feedback, a linear frequency output provides 2 Hz/mm maximum resolution. They are available in diffuse (up to 400 mm sensing range), retroreflective (up to 400 mm sensing range) and thru-beam models (up to 800 mm sensing range).