beautypg.com

Location and positioning, Using the miniscan as an embedded scanner, Location and positioning -8 – Motorola SYMBOL MINISCAN MSXX04 User Manual

Page 32: Using the miniscan as an embedded scanner -8

background image

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°