Rockwell Automation 2755-G3-W_G6-W Scanner with Wedge Option - Manual (Page 20)

Using the Scanner
Chapter 3
3–4
The scanners can read bar code labels at various
distances depending on the bar code width (width of
narrowest element in bar code, either bar or space).
Table 3.B defines the scanning ranges for both the
standard and long range scanner. Scanning ranges are
listed for symbols with bar code widths from 6.0 mil
to 55.0 mil (.15 mm to 1.40 mm).
Table 3.B
Scanning Ranges: Standard and Long Range Scanners
Bar Code
Width
Standard Range
(2755-G3-W)
Long Range
(2755-G6-W)
6.0 mil
(.15 mm)
3.0 in - 5.0 in
7.6 cm - 12.7 cm
N.A.
7.5 mil
(.19 mm)
2.5 in - 7.5 in
6.4 cm - 19.0 cm
N.A.
10.0 mil
(.25 mm)
1.0 in - 10.0 in
2.5 cm - 25.4 cm
N.A.
15.0 mil
(.38 mm)
1.5 in - 14.0 in
3.8 cm - 35.6 cm
8.0 in - 22 in
20.3 cm - 55.9 cm
20.0 mil
(.51 mm)
2.5 in - 18.0 in
6.4 cm - 45.7 cm
12 in - 36 in
30.5 cm - 91.4 cm
40.0 mil
(1.02 mm)
9.0 in - 25.0 in
22.9 cm - 63.5 cm
23 in - 60 in
58.4 cm - 152.4 cm
55.0 mil
(1.40 mm)
12.0 in - 30.0 in
30.5 cm - 76.2 cm
23 in - 66 in
58.4 cm - 167.6 cm
Figure 3.1 illustrates the scanning ranges in graphic
form. The figure shows that the scanning range of
the standard range scanner for a 40.0 mil (1.02 mm)
bar code width is 9.0 - 25.0 inches (22.9 - 63.5 cm).
The scanning range of the long range scanner for the
40.0 mil (1.02 mm) bar code width is 23 - 60 inches
(58.4 - 152.4 cm).
Scanning
Ranges