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HELPING YOU #MAKE SENSE OF SENSORS
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EXAMPLE APPLICATIONS

TO ILLUSTRATE THE WIDE-VARIETY OF APPLICATIONS SOLVED USING CONTRINEX SENSORS, WE HAVE POSTED A LARGE SELECTION OF EXAMPLE APPLICATIONS WHICH CAN BE SEEN BY CLICKING ON AN IMAGE. BELOW ARE A SELECTION OF SOME OF THESE APPLICATIONS:
INDUSTRY LEADING CONTRAST & COLOUR SENSORS - EXCELLENCE IN DETECTING THE DIFFERENCE
CUSTOMER VALUES Reliable, repeatable in-line detection on a non- contact basis Real-time rejection of unidentified or untraceable products Remote set-up via IO-Link reduces need for manual intervention PRODUCT ADVANTAGES Operating range up to 12mm with three-colour RGB emission technology Automatic selection of best emission colour IO-Link connectivity available at no extra cost High switching frequency up to 10kHz Versatile industry-standard push-pull 4-wire output High tolerance to object position variation around 12mm
During high-volume production of confectionery, sealed cartons of bagged candy travel by conveyor to a labelling station. Contrinex’s versatile and high-performance, RGB light-based photoelectric contrast sensor checks the label’s alignment and confirms the presence of print registration markings. If a label is blank, illegible or wrongly positioned, the carton is diverted to a holding area for investigation. CUSTOMER APPLICATION In the food-processing industry, packaged consumer products require labelling – both for identification and for batch control – before final packing. During confectionery production, sealed cartons of bagged candy travel by conveyor from carton-taping stations to a label printer- applicator, before passing to the final packing area. The printer-applicator, which is located at one side of the conveyor, produces a continuous feed of printed labels from roll-stock. As each carton passes the applicator head, the label-stock advances, peeling a single label and applying it to the side of the carton. From time to time, misfeeds or malfunctions occur within the printer-applicator, which consequently applies labels that are either blank, illegible or wrongly positioned. Failure to detect these errors results in unidentified or untraceable products arriving at subsequent operations or, critically, at the customer’s premises. A highly reliable non-contact sensor system is needed. The sensor must detect the alignment of labels and confirm the presence of print markings as cartons leave the printer- applicator, rejecting any defective cartons.
CUSTOMER SOLUTION A photoelectric contrast sensor from the Contrinex Cubic Small range is ideal for this application. This versatile device incorporates a single-lens autocollimator, delivering a narrow optical beam that allows detection of very small features. The choice of red, green or blue LED light, auto-selectable during set-up, ensures optimal contrast resolution. Immediately after the applicator, a single sensor is mounted beside the conveyor; adjustable mounting brackets makes for easy positioning. As the label on each carton passes the detection point, changes in contrast trigger the sensor. The transition from carton surface to label body identifies the position and alignment of the label itself, while the well- defined contrast between printed content and the label body ensures reliable detection of even the smallest print marks. If the label is wrongly aligned or the print markings missing, the sensor triggers a reject mechanism that diverts the carton to a holding area for investigation. An operating range up to 12mm allows adequate clearance between sensor and target, while the compact 40mm x 50mm x 15mm PBTB plastic housing is both mechanically robust and small enough to accommodate any space constraints. Set-up is accomplished either using a three-button keypad on the sensor, or via IO-Link, a standardized point-to-point serial connection protocol. Photoelectric contrast sensors are available with industry-standard push-pull 4-wire output. Connection to the customer’s control system is via a PVC- sheathed cable with the choice of an integral M12 connector or a hermetically sealed entry.
CONTRINEXS COLOUR AND CONTRAST SENSORS OFFER INDUSTRY-LEADING PERFORMANCE WHICH IS TRUSTED ACROSS THE PRINT LABELLING AND PACKAGING INDUSTRIES.

COLOUR & CONTRAST SENSORS

Contrinex’s Colour photoelectric sensors use energetic-diffuse sensing to detect variations in target color, to enable colour sorting or colour control. Contrinex colour sensors feature five selectable tolerance levels for each of three separate outputs, which each can be set using a “teach-in” function to recognise or ignore even the smallest variations of colour. The Colour and Contrast sensors use the same rugged PBTP housing (40 mm x 50 mm x 15 mm) with IP67 enclosure rating and are available in cable or adjustable (0°, 45° or 90°) connector versions. Contrinex’s Contrast sensors offer exceptional performance for detecting print marks in printing, labelling and packaging applications. Using a narrowly focused light beam and RGB (Red-Green-Blue light) emission technology, the contrast sensor automatically selects the best emission colour during the teach-in procedure.
PRODUCT ADVANTAGES Detection of very small print marks thanks to a narrow, collimated light spot Optimum contrast enhancement through automatic selection of emitter diodes in different colours Detection of the smallest differences in contrast due to high contrast resolution Tolerance selection and easy teach-in over IO-Link High switching frequency up to 10kHz Versatile industry-standard push-pull 4-wire output High tolerance to object position variation around 12mm
PRODUCT ADVANTAGES - Packaging machines For the precise recognition of print marks on packaging film, without sacrificing processing speed, a highly accurate, fast and reliable sensor is required. The new contrast sensor from Contrinex offers all this in a variety of configurations. Optimized detection of print marks Easy teach-in and installation Full remote control with IO-Link
PRODUCT ADVANTAGES- Printing & labeling machines In printing machines, precise position sensing is required, even with different print colours. The new Contrinex contrast sensor allows accurate detection thanks to tolerance adjustment. This ensures that the sensor only responds to print marks and ignores other coloured objects. High precision detection Adjustable detection tolerance Short changeover times due to IO-Link
Excellent contrast resolution, a high switching frequency (up to 10 kHz) and five tolerance levels ensure accurate detection and positioning, even when contrast differences are minimal. The integral IO-Link interface can be used to reduce changeover times through remote teach-in and parameterisation. Other control functions, including monitoring, diagnosis and switching timer adjustment are also available using IO-Link. .
Helping you #Make Sense of Sensors
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CLICK ON AN IMAGE TO VIEW THE BROCHURE OR VIDEO, READ AN APPLICATION EXAMPLE BELOW, CLICK HERE TO VIEW THIS SENSOR ON CONTRINEXS WEBSITE, OR CALL US TO HELP GUIDE YOU THROUGH SELECTION, ANSWER QUESTIONS, OR TO HELP YOU #MAKESENSEOFSENSORS:
PRODUCT ADVANTAGES Detection of very small print marks thanks to a narrow, collimated light spot Optimum contrast enhancement through automatic selection of emitter diodes in different colours Detection of the smallest differences in contrast due to high contrast resolution Tolerance selection and easy teach-in over IO-Link High switching frequency up to 10kHz Versatile industry-standard push-pull 4-wire output High tolerance to object position variation around 12mm
PRODUCT ADVANTAGES- Printing & labeling machines In printing machines, precise position sensing is required, even with different print colours. The new Contrinex contrast sensor allows accurate detection thanks to tolerance adjustment. This ensures that the sensor only responds to print marks and ignores other coloured objects. High precision detection Adjustable detection tolerance Short changeover times due to IO-Link
PRODUCT ADVANTAGES - Packaging machines For the precise recognition of print marks on packaging film, without sacrificing processing speed, a highly accurate, fast and reliable sensor is required. The new contrast sensor from Contrinex offers all this in a variety of configurations. Optimized detection of print marks Easy teach-in and installation Full remote control with IO-Link

COLOUR & CONTRAST

SENSORS

CONTRINEXS COLOUR AND CONTRAST SENSORS OFFER INDUSTRY-LEADING PERFORMANCE WHICH IS TRUSTED ACROSS THE PRINT LABELLING AND PACKAGING INDUSTRIES.
CUSTOMER VALUES Fast and easy upgrade of mechanical limit switches Tool-free mounting Rotatable sensing face, mountable in five directions Significant reduction in downtime PRODUCT ADVANTAGES Long operating distance up to 40 mm Highly flexible, reliable and economical Suitable for harsh environments and temperatures from -25°C to +85°C Long life, especially in applications with temperature fluctuations and vibrations High switching frequencies, reliable switching Changeover outputs 4 LED indicators• IO-Link interface
During high-volume production of confectionery, sealed cartons of bagged candy travel by conveyor to a labelling station. Contrinex’s versatile and high-performance, RGB light-based photoelectric contrast sensor checks the label’s alignment and confirms the presence of print registration markings. If a label is blank, illegible or wrongly positioned, the carton is diverted to a holding area for investigation. CUSTOMER APPLICATION In the food-processing industry, packaged consumer products require labelling – both for identification and for batch control – before final packing. During confectionery production, sealed cartons of bagged candy travel by conveyor from carton-taping stations to a label printer- applicator, before passing to the final packing area. The printer-applicator, which is located at one side of the conveyor, produces a continuous feed of printed labels from roll-stock. As each carton passes the applicator head, the label-stock advances, peeling a single label and applying it to the side of the carton. From time to time, misfeeds or malfunctions occur within the printer-applicator, which consequently applies labels that are either blank, illegible or wrongly positioned. Failure to detect these errors results in unidentified or untraceable products arriving at subsequent operations or, critically, at the customer’s premises. A highly reliable non-contact sensor system is needed. The sensor must detect the alignment of labels and confirm the presence of print markings as cartons leave the printer- applicator, rejecting any defective cartons.
Contrinex’s Colour photoelectric sensors use energetic-diffuse sensing to detect variations in target colour, to enable colour sorting or colour control. Contrinex colour sensors feature five selectable tolerance levels for each of three separate outputs, which each can be set using a “teach-in” function to recognise or ignore even the smallest variations of colour. The Colour and Contrast sensors use the same rugged PBTP housing (40 mm x 50 mm x 15 mm) with IP67 enclosure rating and are available in cable or adjustable (0°, 45° or 90°) connector versions. Contrinex’s Contrast sensors offer exceptional performance for detecting print marks in printing, labelling and packaging applications. Using a narrowly focused light beam and RGB (Red-Green-Blue light) emission technology, the contrast sensor automatically selects the best emission colour during the teach-in procedure. Excellent contrast resolution, a high switching frequency (up to 10 kHz) and five tolerance levels ensure accurate detection and positioning, even when contrast differences are minimal. The integral IO-Link interface can be used to reduce changeover times through remote teach-in and parameterisation. Other control functions, including monitoring, diagnosis and switching timer adjustment are also available using IO-Link. .
INDUSTRY LEADING CONTRAST & COLOUR SENSORS - EXCELLENCE IN DETECTING THE DIFFERENCE
Click for Brochure Colour & Contrast Catalogue Extract