Motorola MS3204 Spécifications télécharger pdf (Page 39)

Installation 2 - 15

Embedded Window Angle and Position

If a window is placed between the MiniScan and the item to be scanned, observe the following guidelines:

•

Window Clear Opening - Make the clear opening of the window large enough so that the entire scan beam

passes through the window. Cutting off any part of the beam can result in internal reflections and degrade

decode range performance. Ensure that window placement relative to the MiniScan accounts for tolerances

on all parts involved in that assembly.

•

Window Angle - Angle the window at least 2

more than the tilt of the window on the scanner (see Table

2-5). Further tilting the window is acceptable and decreases the possibility of a secondary reflection from that

window degrading the scanner's performance.

•

Optical Working Range - Adding a window can reduce the working range of the scanner since there is a

signal loss when passing through window material. To minimize this reduction, use a special coating

described in Window Coatings on page 2-14. To understand the difference, test the scanner in the desired

orientation and see if the difference affects scanner performance.

Table 2-5

Secondary Window Angles

MiniScan Model

MiniScan Exit Window Angle

from Vertical

Minimum Secondary Window

Angle from Vertical

MS954

MS1204FZY, MS2204, MS2204VHD

MS3204

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 259 260

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Motorola MS3204 Spécifications Page 39