Food & Drink Processing & Packaging Issue 32 2021 | Page 39

Pleased with the positive test results : Hermann Sammer , Director of R & D at Sesotec and Andreas Eberle , Key Account Manager Packaging at Leuze
As a result , Sesotec intentionally wets , soils or gums up conveyor belts in the test situation as is often the case in actual use , e . g ., due to stuck labels or chocolate residues . “ From these test results , we deduce possible product improvements or further developments ,” says Michael Schafferhans , Technical Sales Consultant at Leuze . “ This allows us to determine where we need to readjust and improve further ,” he adds . Leuze takes this feedback from customers and partners very seriously and is actively working on additional sensors based on the CAT technology . After all , it always comes down to providing the customer with the best possible support with his application and making him even more successful . This is the goal and aspiration of the Sensor People .
CONTRAST ADAPTIVE TEACH INCREASES THE THROUGHPUT “ The DRT 25C is based on a completely new technology : the Contrast Adaptive Teach Technology ( CAT ),” explains Eberle . The basic idea is simple : The object can change at any time . The
DRT 25C therefore works with an object ’ s environment as a constant reference surface instead of with the object itself . In packaging systems , this is the conveyor belt . This serves as a teachable reference . Once the sensor has been taught the contrast information of the conveyor belt , it only needs to be intelligent enough to adapt this knowledge to a possible change of environment . This is precisely what CAT technology does . With this reference technology , Leuze has created a new operating principle in the field of switching sensors . The DRT 25C learns the signal parameters of the conveyor belt at the press of a button and stores them as the “ standard zero .” Every object that is transported on the conveyor belt now generates a signal . If this deviates from the zero state , the DRT 25C reliably detects the object as a “ deviation from the reference .” The performance of the device is optimized through the choice of teach level . There is , for example , a teach routine for conveyor belts that become heavily soiled over time . Another teach level exists especially for the detection of very flat or even transparent objects .
Once the sensor has been “ taught ,” no additional settings or readjustments are necessary . Not even if the object is changed , as the sensor operates together with the conveyor belt as a reference .
THE ALL-ROUNDER SENSOR The DRT 25C dynamic reference diffuse sensor from Leuze is based on the intelligent CAT technology and represents a new operating principle . It thereby sets new technological standards on the market and is another milestone in the innovation history of Leuze . Once again as forerunners , the Sensor People thereby precisely meet their customers ’ requirements for reliable detection and make them successful in an industry that is ever evolving . After all , the success of their customers is their aspiration and goal . Reduced downtimes , increased machine throughput as well as higher production quantities , all with maximum flexibility without readjustment when changing objects - that means increased cost effectiveness for their customers . www . leuze . com / drt25c
www . leuze . com FDPP - www . fdpp . co . uk 39