GoDEX GS550 - Manual (Page 36)

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Presentation Mode
Presentation Mode uses ambient light to detect bar codes. The LED dims until
a bar code is presented to the scanner, then the LED brightens to read the
code. If the light level in the room is not high enough, Presentation Mode may
not work properly.
Presentation Mode
Presentation Sensitivity
Presentation Sensitivity is a numeric range that increases or decreases the
scanner's reaction time to bar code presentation. To set the sensitivity,
scan the Sensitivity bar code, then scan the degree of sensitivity (from 0-
20) from the inside back cover, and Save. 0 is the most sensitive setting,
and 20 is the least sensitive. Default = 1.
Sensitivity
Presentation Centering
Use Presentation Centering to narrow the scanner
’s field of view when it is
in the stand to make sure the scanner reads only those bar codes intended
by the user. For instance, if multiple codes are placed closely together,
Presentation Centering will insure that only the desired codes are read.
Note: To adjust centering when the scanner is hand-held, see
Centering (page 3-10).
If a bar code is not touched by a predefined window, it will not be decoded
or output by the scanner. If Presentation Centering is turned on by scan-
ning Presentation Centering On, the scanner only reads codes that pass
through the centering window you specify using the Top of Presentation
Centering Window, Bottom of Presentation Centering Window, Left,
and Right of Presentation Centering Window bar codes.