Quick Check® 890 User’s Guide
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Apertures
Pen/Mouse Wand Aperture Selection
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.
Aperture Diame-
ter (in .001”)/Aper-
ture Ref. No.
Aperture
Diameter
"X" Dimension
Range (in
inches)
"X" Dimension
Range (in mm)
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
Summary of Contents for QUICK CHECK 890
Page 1: ...User s Guide Quick Check 890 Bar Code Verifier Quick Check ImageData...
Page 18: ...2 10 Quick Check 890 User s Guide...
Page 26: ...3 8 Quick Check 890 User s Guide...
Page 28: ...4 2 Quick Check 890 User s Guide...
Page 34: ...A 2 Quick Check 890 User s Guide...
Page 38: ...C 2 Quick Check 890 User s Guide...
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