Symbol MiniScan MS1204FZY, Integration Manual

Page: 32 / 260

2 - 8 Symbol MiniScan MSXX04 Series Integration Guide
Location and Positioning
Using the MiniScan as an Embedded Scanner
The MiniScan can be mounted to read symbols that are automatically presented, or that are presented in a
pre-determined location. In these applications, MinScan positioning with respect to the symbol is critical. Failure to
properly position the MiniScan can result in unsatisfactory scanning performance. A thermal analysis is also
recommended.
Two methods of positioning the scanner are provided:
•
Use the Calculating the Usable Scan Length Method on page 2-8 with consistently good quality symbols (see
page 2-9 for the Symbol MS954). This provides a mathematical solution to find the usable scan length.
•
The Testing the Usable Scan Length Method on page 2-10 uses real situation testing to adjust the usable
scan length to fit the application conditions.
Calculating the Usable Scan Length Method
Calculate usable scan length as follows (see Figure 2-9 on page 2-9 ):
L = 1.8 x (D+d+B) x Tan (A/2)
CAUTION The location and positioning guidelines provided do not consider unique application characteristics. It
is recommended that an opto-mechanical engineer perform an opto-mechanical analysis prior to
integration.
NOTE Integrate the scanner in an environment no more extreme than the product’s specification, where the
scanner will not exceed its temperature range. For instance, do not mount the scanner onto or next to a
large heat source. When placing the scanner with another device, ensure there is proper convection or
venting for heat. Follow these suggestions to ensure product longevity, warranty, and overall satisfaction
with the scanner.
Table 2-1
Calculation Constants
Constants B A
MS1204FZY (Default) 1.17 42°
MS1204FZY (Narrow Mode) 1.17 30°
MS2204 1.53 34°
MS2204VHD 1.53 34°
MS3204 1.93 34°