Motorola Symbol MiniScan MSXX07 Series Integration Manual page 30

2 - 8 Symbol MiniScan MSXX07 Series Integration Guide
Calculating the Usable Scan Length Method
Calculate usable scan length as follows (see
L = 1.8 x (D+d+B) x Tan (A/2)
Calculation Constants
Table 2-1
Constants
MS1207FZY (Default Mode)
MS1207FZY (Alternate Mode)
MS1207WA
MS2207
MS2207VHD
MS3207
where:
D = Distance (in inches) from the front edge of the host housing to the bar code.
d = The host housing's internal optical path from the edge of the housing to the front of the MiniScan scanner.
B = Internal optical path from the scan mirror to the front edge of the MiniScan scanner.
A = Scan angle in degrees.
NOTE Usable scan length determined by this formula, or 90% of scan line at any working distance. This formula
is based on good quality symbols in the center of the working range and length of bar code.
Host System
A
MiniScan
B
Usable Scan Length Diagram
Figure 2-8
Figure 2-8 on page
B A
1.17 42°
1.17 30°
1.17 60°
1.53 34°
1.53 34°
1.93 34°
d D
2-8):
Bar
Code
1/2 L
L
1/2 L