User manual

Psion Teklogix WORKABOUT PRO With Windows Mobile 2003 SE User Manual 133
Chapter 6: Settings
Code 39 Settings
Auto Exposure
Important: This parameter value should only be changed by qualified Psion
Teklogix personnel. It should be left at the default value – ‘on’.
Setting this parameter to on allows the imager to make automatic gain, integration
and illumination adjustments based on ambient light before capturing the bar code.
If the adjustment is insufficient, further adjustments are made automatically before
another image is captured.
Fast Converge
Note: “Auto Exposure” must be set to ‘on’ in order for this parameter
to function.
Keep in mind that while this parameter can improve imager performance,
“Fast Converge” increases battery power consumption.
Setting this parameter to on speeds the “Auto Exposure” process. It allows the
imager to rapidly snap a number of bar code capture attempts while finding ideal
values for gain, integration and illumination.
Max Gain, Max Integration And Max Illumination
Important: These parameter values should only be changed by qualified
Psion Teklogix personnel.
These parameters represent internal units used by the Symagery imager. The “Auto
Exposure” parameter automatically adjusts the “Max Gain”, “Max Integration” and
“Max Illumination” parameters to produce the best bar code read. Keep in mind that
“Auto Exposure” must be set to on in order for these parameter values to be
automatically adjusted.
Double-tapping on any of these parameters displays an associated dialog box in
which an allowable range is displayed: Max Gain – 357 to 7920, Max Integration –
0 to 65535, Max Illumination – 0 to 7.
6.20.3.2 Code 39 Settings
Enabled
Set this parameter to on to enable “Code 39” or off to disable it.
Field Size/Char
Refer to page 117 for details.