Honeywell International Inc. QC900A Manuale Utente

The table below is a handy reference to help you choose the proper aperture size 
required for the size/type bar code you wish to verify.  This data is based on the 
standard ISO/IEC 15416 Bar code Print Quality Test Specification - Linear 
Symbols.

Note: 6 mil aperture specified for UPC/EAN only.

Note: 3 mil and 20 mil aperture available in mouse wand style only.

Check your application standard's requirements for specified aperture 
requirements.  If no aperture is specified, use the aperture that is as close to, but 
not larger than, 80% of the narrow element width.

The QC890 Verifier has an Automatic selection feature available ONLY for the 
internal optics.  When using the Automatic selection feature, the verifier 
automatically selects from a 5, 6, or 10mil aperture.  This selection is determined 
by the symbology (e.g., EAN/UPC selects 6mil aperture) or as determine by the 
internal optics’ ability to calculate the width of the narrow element and select the 
aperture as determined by the table above.

03

0.075

0.004" to

 0.007"

0.100 to

 0.180

05

0.125

0.0071" to .013”

.0180 to 0.330

10

0.250

0.0131"to 0.025"

0.330to 0.635

20

0.500

0.0251" and 
larger

0.635 and larger