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August 2008 Sensors & Transducers

KT3/IO-Link is the new compact and communication-enabled contrast scanner from SICK. The small housing allows the sensor to be mounted in very limited spaces, for example in a pharmaceutical packaging plant or bag forming, filling and sealing machines. As a result of its RBG diode, the KT3/IO-Link detects all common contrasts with a high level of reliability – and, with dazzle adaptation, even on strongly reflective target objects.

For end-users the KT3/IO-Link offers flexibility, process reliability and availability

Its highlight, however, is the IO Link interface. It permits remote parameterisation of the sensor via the plant’s recipe-handling system, allows diagnostic information to be called up at the press of a button, remote maintenance and, finally, offers the prerequisites for logging processes in compliance with CFR21 Part 11. This simplifies control and operation of packaging machines, with simultaneous comprehensive logging of process data.

System benefits

The communication possibilities of the KT3/IO-Link simplify both the transition between different packaging orders as well as error correction and preventive maintenance – particularly when the sensor’s signals and information are integrated in a user interface and visualised there.

Thus, during commissioning, a precise setting of the contrast scanners can be undertaken on the touch-screen for each of the packaging designs or each recipe to be processed. During operation, the particular programmed parameters (eg, contrast-related switching thresholds, transmission colour and output logic) can be called up from the automation system, transferred to the sensors and, if necessary, displayed on the panel. There is therefore no longer any need for mechanical re-adjustment of the sensors for each change of order, their settings are 100% reproducible from order to order, and processes can thus be logged in accordance with CFR21 Part 11 (the Code of Federal Regulations, Electronic Recording, Electronic Signatures; US Food & Drug Administration Regulations).

In the case of a fault, the machine operator can immediately gain an idea of the possible cause. He or she touches the appropriate sensor image on the panel and immediately obtains all the important diagnostic information, eg, current and taught-in contrast qualities. This information also makes it possible to carry out preventative plant maintenance during a break in operation and thus prevent lost time caused by unplanned machine downtimes.

For more information contact Jendamark Automation,+27 (0)41 391 4700, [email protected], www.sick.com

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