
190
BHT-904BB
8.1.3 Reading Performance
Reading Reference Position
Reading Distance and Area
Narrow Bar W epth of Field
s illustrated on the left, align the barcode
reading window with the center of the barcode.
Barcode
11°
0.125mm
Reading angle (reference)
Minimum idth D
0.125 mm
0.15 mm
0.33 mm
1.0 mm
1.2 mm
15 ≤ H ≤ 80 mm *2
0
≤ H ≤ 100 mm *3
0
≤ H ≤ 240 mm *4
H
≤ 500 mm *5
H
≤ 550 mm *6
The label position is on the BHT-904BB central axis.
The BHT-904BB may fail to read codes due to specular reflection depending upon the position of the light
source, reading angle of the reading window, and other conditions.
500mm
540mm
130mm
100mm
40mm
90mm
0.15mm
0.33mm
1.0mm
1.2mm
*1
*1
600 700
27°
0°
Reading central axis
Valid reading range
0 50 100 150 200 250 400 500
mm
Readin
distance
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