Page 8 - Industrial Technology EXTRA 28th September 2020

SENSORS...

The challenge of packaging

confectionery and baked goods

Leuze’s detection expert – the DRT 25C – reliably meets the high requirements of
packaging machines with the use of its innovative reference technology

ith the DRT 25C dynamic reference diffuse
sensor, Leuze has brought a new
operating principle to the market in
Wthe area of optical sensors. At the
heart of the innovation is the CAT technology, which
transforms a simple diffuse sensor into a highly
intelligent device. This can be seen in the DRT 25C’s
clever mode of operation: it is taught in on a
reference surface at the press of a button which
allows it to reliably detect nearly every object,
independent of shape, color and surface structure.
The reference surface can be a machine wall, a
piece of sheet metal, or even a vibrating, moving
conveyor belt. This makes the sensor particularly
well suited for use in packaging systems, especially
in the area of confectionery and baked goods. No
readjustment is necessary when changing objects.
Leuze developed its first optical sensor almost
60 years ago. Numerous technological milestones
and innovations have followed since then, and the
company has decades of experience and in-depth
application know-how in specific focus industries. One
of these is the packaging industry, which, with throughputs of
several hundred thousand products per day and finely tuned process
steps, places extremely high demands on the optical sensors. Clear-glass
retro-reflective photoelectric sensors require less maintenance through
smart tracking.
Thanks to line-shaped light spots, laser diffuse sensors detect objects –
no matter how complex – on their front edge. Extremely powerful through-

September 2020 • INDUSTRIAL TECHNOLOGY EXTRA • p8