Step 3 - Estimate Scan Width; Figure 1-2 Ms-7100/7180 Ranges And Scan Widths - Microscan MS-7100 User Manual

Chapter 1 Setup and Installation
3
Estimate Scan Width
Scan width is that portion of the scan line in which a label can be read. For
ladder oriented labels, scan width must only be wide enough to fully cover
the label length, including quiet zones. With picket fence oriented labels,
scan width is a factor in determining the time during which the label can be
read. (See Appendix C, "Orientation," on page
width, the longer a picket fence label will be in the scan range, and the more
scans it will receive.
Use figure 1-2 to estimate the scan width that corresponds to the applicable
read range. For example, a picket fence label moving across the scan line
at 43 inches (109 cm) from the scanner will have a scan width of approxi-
mately 33 inches (83.8 cm).
cm 6 0
in. 25
60
150
140
130
50
120
45
110
40
100
90
35
80
30
Low
70
Density
Scanner
25
60
20
50
40
15
30
Density
10
Scanner
20
5
10
0
0
in.
cm
R ange

Figure 1-2 MS-7100/7180 Ranges and Scan Widths

1-4
MS-7100/7180 Industrial Scanner User's Manual
A-6) The greater the scan
Scan W idth
50 40 30 20 10 0 10 20 30
20 15 10 5 0 5 1 0 1 5
M S -7 10 0
R a n ge s
M S -7 18 0
R a n ge s
Ultra High
High
Ultra High
Density
Density
Scanner
Scanner
40 50 6 0
20 25
60
150
140
130
50
120
45
110
40
100
90
35
Low
80
Density
30
Scanner
70
25
60
20
50
40
15
High
Density
30
10
Scanner
20
5
10
0
0
in.
cm
R ange