Справочник Пользователя для Denso Wave DWBT003
34
Reading Bar Codes
Turn the BHT on, bring the bar-code reading window to the bar code to be scanned,
and press the trigger switch. The BHT turns on the illumination LED to scan the bar
code.
and press the trigger switch. The BHT turns on the illumination LED to scan the bar
code.
When the BHT has read the bar code successfully, the indicator LED will illuminate
in green.
in green.
• If the BHT fails to read due to specular effects
or other factors, change the scanning angle of
the reading window or the distance from codes
as shown at right, and try it again. (Specular
effects occur when the reflection of the light
from the bar code becomes excessively strong.
This can easily happen when the reflecting
surface is polished or covered with vinyl.)
the reading window or the distance from codes
as shown at right, and try it again. (Specular
effects occur when the reflection of the light
from the bar code becomes excessively strong.
This can easily happen when the reflecting
surface is polished or covered with vinyl.)
• To read bar codes wider than the readable area
of the bar-code reading window, pull the
bar-code reading window away from bar codes.
The BHT can read bar codes at a maximum
distance of 45 cm (17.7") from the bar-code
reading window, respectively. **
bar-code reading window away from bar codes.
The BHT can read bar codes at a maximum
distance of 45 cm (17.7") from the bar-code
reading window, respectively. **
** Under the following conditions:
- Ambient illuminance: 500 lux (fluorescent lamp)
- ITF conforming to the UPC Shipping Container
- ITF conforming to the UPC Shipping Container
Code
- PCS value: 0.9 or more
- Minimum narrow bar width: 1.2 mm min.
(47.2 mils min.)
• The bar code reading procedure may differ depending upon the application used,
so follow the application’s manual.
Illumination range covered
by the illumination LED
by the illumination LED
Indicator LED
(Illuminates in green when the
BHT has read the bar code
successfully.)
BHT has read the bar code
successfully.)
Power key
Trigger switch
(M3 key)*
(M3 key)*
Trigger switch (M4 key)*
* The trigger switch function is
assigned to both of the M3
and M4 keys by default.
and M4 keys by default.