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7. Special Functions
The Quick Check
®
200 series can be set to a special “static” reflectance
measurement function (Reflectometer Mode). This mode is especially useful in
investigating the underlying optical characteristics of bar code symbols. The
Reflectometer Mode, along with the Command Code mode is covered below.
Reflectometer Mode
This menu selectable Special Function is entered by pressing the Scroll [<>]
Button when [Reflectom’r>] is present on the LCD. Then in this special
reflectometer mode, the reflectance “seen” by the QC200’s optics is continuously
displays as both a two digit reflectance percentage and on a graphic bar graph
as soon as the mode is invoked.
Here the xx% and the graphic bar graph (or “gas gauge”) represent a reflectance
value of 00% to 100% from the static reflectometer. This mode is not
“memorized” when the unit is shut off. When turning the unit back on after power
down, it will be necessary to re-establish the Reflectometer Mode if needed. For
these values to be meaningful and consistent, it is critical first that reflectance
calibration have been performed recently and second that the QC200 be held
with its “reflectance foot” and optics tip both touching the sample to maintain the
proper angle.
Command Code Programming
The Quick Check
®
200 series has the unique ability to be “pre-programmed” by
the user by scanning a specially encoded code 128 symbol. This symbol will
automatically make all the selections normally made by the user stepping
through the normal menu sequence. This is particularly useful if the user has
one or two particular setups that they are constantly switching between.
Samples of Command Codes, such as the Command Code to “reset” the QC200
back to all generic default settings, are included with each unit.
NOTE: Display orientation (Right Handed vs. Left Handed) and Printer Interface
selection ARE NOT set using the Command Code. Factory default settings for
these are “Right handed” and “QCHSP”.
Users with one of the accessory Quick Check
®
Printers can produce a Command
Code of their QC200’s present set-up by following the next steps;
First be sure your Quick Check
®
200 is connected to a Quick Check
®
Printer, that
the proper interface selection has been made and both are turned on. Next,
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Страница 72: ...Hand Held Products Inc 700 Visions Drive P O Box 208 Skaneateles Falls NY 13153 0208 QC200 UG Rev C 7 05 ...