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Barcode readers for proof of origin in the food industry

06 March 2017

Barcode readers are increasingly being used for the automated identification, tracking and tracing of products in this industry sector. Cognex has helped implement an efficient track and trace solution at one food producers site with its DataMan 302 barcode reader, allowing pickled gherkins to be traced all the way back to the respective grower.

Cognex DataMan 302 barcode readers form part of the track and trace system that enables the company to prove the precise origin of the classified gherkins.

Right at the start of the production chain, the DataMan 302 detects and reads the labels found on the containers with the classified batches of gherkins. As soon as the manufacturer and product data read has been verified successfully, the gherkins enter the downstream production. The long-term storage of the data enables batches to be traced back even after a period of years to the respective field and grower.

The fixed-mount DataMan 302 barcode readers are available with a selection of lighting and lens variants for reliably reading the most difficult-to-read barcodes and data matrix codes – including high-speed lines. Both the integrated and controllable lighting as well as the liquid lens with adjustable focus enable the optimum setting of working distance, depth of field and field of view in order to achieve the best-possible read rates.

An intelligent auto-tuning function automatically selects the optimum settings for the integrated lighting, autofocus and imager. The barcode readers can also read damaged, distorted, blurred and low-contrast codes and transfer the information to the controller. This allows the data to be processed immediately and stored in the long-term.


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