Datalogic Matrix 400 Manuel d'instructions télécharger pdf (Page 42)

MATRIX 400™ CODE QUALITY VERIFIER SOLUTION

Dot Ovality

Evaluate the ovality of each dot by measuring the difference between its height (D) and width

(d) expressed as percentage differences from the nominal circle values. It is calculated only

for circular module shape.

Acceptable value: < = 20%.

Quiet Zone

Measures the Quiet Zone (margin) around the symbol. It shall be equal to or greater than 1

module size.

Symbol Contrast

Symbol Contrast measures the difference between light and dark symbol elements, and

between the Quiet Zone and the outer limit elements.

It is meaningful only for laser etching or electro chemical etching marking methods.

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Datalogic Matrix 400 Manuel d'instructions Page 42