Barcode Verifiers

The importance of Barcode Verifiers in the modern production environment.

Barcode verification checks the quality and scannability of a barcode by examining the visual aspects of the code in line with industry standards and specifications.

But why is it so important? As well as in-line solutions like the Cobalt Sentinel, it is also necessary to off-line test batches with ISO accredited verifiers to comply with GS1 best practices and remian audit ready.

Barcode verification not only prevents expensive recalls and disruption, but ultimately protects your customer and indeed your relationship with them. How much is that worth to your company?

You can read more about Barcode verification below, but if you need any advice, please pick up the phone or email us we are always here ready to help.

Introduction

Handheld Barcode Verifier

Disciplined approach to off-line sampling will deliver results.

To achieve off line sample barcode verification, it is essential that you use equipment which conforms to ISO/IEC 15426-1 standards. In-line barcode verifcation cannot be achieved to the ISO standard but equivalent grades can be achieved (see Cobalt Sentinel).

Accredited, calibrated equipment must be used by trained operators as part of a regular sampling process to introduce discipline to barcoding practices and accordingly deliver the best results. Off-line testing is a rigorous process which audits barcoding procedures, but it is essential and when it comes to barcoding best practice.

If a faulty bar code is identified, corrective action can be taken. The quality of the sampling method and the speed of the interpretation of results is critical to implementing an effective procedure to capture early failures and react before production, packing, and distribution has been executed.

Specification

Verification Standards

ISO/IEC 15416 requires 7 attributes to be tested in up to 10 separate positions of each bar code to devise an alphabetic grading from A to D, or fail.

These are the 7 tested attributes below:

Decode - checks that the area being scanned meets the criteria of a recognised bar code format

Minimum Reflectance - compares the reflectance of the bar to that of the background

Symbol Contrast - measures the overall range of contrast between the bars & the background media.

Minimum Edge Contrast - measures the definition of the poorest bar in the code.

Modulation - measures the consistency of reflectance throughout.

Defects - ensures bars are complete and spaces are empty

Decodability - measures the dimensional accuracy of the bar code

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