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24. May 2013

KTM miniature contrast sensors for subtle distinction and speedy format changes

Cutting, punching, and aligning – the KTM product family in the Prime and Core models offers tailor-made solutions for print mark detection and controlling of packaging processes, such as, e.g., positioning of boxes, cans, tubes, labels, or blank forms. Space-saving housings, refined gray-scale resolution, improved stability against surface shine, easy-to-use operating design, and IO-Link are the highlights of the new KTM contrast sensors from SICK.

 

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KTM Prime: Top of the class among contrast sensors

Featuring a response time of merely 35 µs, the KTM Prime ranks among the fastest contrast sensors, not only in the miniature segment. The combination of its performance specifications makes the sensor in the miniature housing the top of the class in this category. The RGB tricolor LED of the KTM Prime provides utmost detection reliability even for poor contrasts. Moreover, using the contrast differentiation significantly refined to 20 gray scales, permits even more reliable detection of different print marks.

 

Contrast sensor KTMThanks to enlarged dynamic area, the detection results are “brilliant” as well with respect to shiny or highly reflective surfaces. The simple and intuitive teach-in procedure is easy to use. Both the option of static teach-in to the mark and to the background as well as dynamic teach-in are integrated into the KTM Prime. In both methods, the teach function close to the mark allows setting the switching threshold close to the reflectance of a print mark. When changing packaging color but retaining the same print mark, one can thus continue to use the switching threshold set without any change.

 

Flexibility for changing format due to IO-Link

IO-Link

The IO-Link technology of the KTM Prime opens up diverse possibilities of communication between the sensor and the controller. For example, when changing formats, it is possible to load the taught-in batch parameter automatically from a plant control system to the sensor. In this way, the KTM Prime receives the set of parameters saved for the job within a few milliseconds.

Core function of contrast detection: KTM Core

Contrast sensors KTM Prime and KTM Core

KTM Prime and KTM Core contrast sensors

 

With the Core version, the KTM is also available as a contrast sensor with white-light LED. Though also delivering good performance in terms of gray-scale variation and the dynamics of surface shine, it concentrates (cost-) consciously on the essential features. Setting the switching threshold occurs statically and, depending on the design of the control element, either manually or by using a screwdriver.

 

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