Denso BHT-4000 User Manual page 61

[ 4.4 ] Setting the special bar-code scanning parameters
SET BARCODE
1:Option
2:Decode level
Black-and-white inverted label reading function (Invert)
This function makes it possible to read white bars on a black background.
Touch scanning/long-range scanning (Touch Read)
You may select touch scanning or long-range scanning. The touch scanning is a
method in which you bring the bar-code reading window to a bar code to be
scanned. The long-range scanning allows you to read bar codes wider than the
readable area of the bar-code reading window by pulling the bar-code reading
window away from bar codes. (The BHT-4000 can read bar codes at a maximum
distance of 31 cm (12.21") from the bar-code reading window.)
If "Touch Read" is set to ON on the BARCODE OPTION screen, the reading speed
increases in touch scanning. In long-range scanning, however, this setting may
decrease the reading speed and efficiency when the ambient illuminance is low or
too high.
If "Touch Read" is set to OFF, the BHT-4000 can scan bar codes irrespective of the
ambient illuminance. This setting, therefore, is suitable for long-range scanning.
Note that the scanning speed will slightly decrease.
Chapter 2. Getting Started the BHT-4000 and System Mode
Selecting "Barcode" on the SET SYSTEM
menu displays the screen shown at left.
1 Option
2 Decode level : Shifts to the DECODE
Select a desired setting by using the nu-
merical keys, then press ENT key.
To return to the SET SYSTEM menu, press
C key.
51
: Shifts to the BARCODE
OPTION screen where
you may set the black-
and-white inverted label
reading function, touch
scanning/long-range
scanning, marker indi-
cation, and bar-code
scanning status indica-
tion. (For detailed de-
scription of these func-
tions, see below.)
LEVEL setting screen.