3 ] Scanning Performance - Denso BHT-202Q User Manual

[ 3 ] Scanning Performance

Scanning reference position
105 mm (4.1")
Scanning distance and area
QR codes
PCS value: 0.9 min., Reflection intensity: 85% min. for white
1
*
Under the following conditions:
- Ambient illuminance: 500 lx. (Xenon arc lamp)
- QR code Model 2, Ver. 5 (37 x 37 cells)
Error correction level: M, Black and white label
Label
Cell pitch
0.25 mm (9.8 mils)
0.33 mm (13.0 mils)
0.50 mm (19.7 mils)
As illustrated at left, align the
reading window with the center of
the label (code) to be scanned.
Scanning distance
40 to 130 mm (1.6 to 5.1 inches)*
30 to 200 mm (1.2 to 7.9 inches)*
30 to 300 mm (1.2 to 11.8 inches)*
2
*
Under the following conditions:
- Ambient illuminance: 500 lx. (Xenon arc lamp)
- QR code Model 2, Ver. 3 (29 x 29 cells)
Error correction level: M, Black and white label
152
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