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.

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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