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.

Psion Teklogix WORKABOUT PRO With Windows Mobile 2003 SE User Manual 133

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Psion Teklogix 7525 Code 39 Settings, Auto Exposure, Fast Converge, Max Gain, Max Integration And Max Illumination