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ABR 3000 Series Barcode Reader
3. Check the device alignment.
4. Tighten the mounting screws to secure the device (or the device and the bracket) in the aligned position.
3.4 Position the Reader
The ABR is able to decode code labels at a variety of angles; however significant angular distortion may degrade reading
performance.
When mounting the ABR, consider these ideal label position angles: Pitch or Skew 10° to 20° and Tilt 0°. The reader can
read a code at any tilt angle provided the code fits into the Field Of View (FOV).
Note: Because the ABR is omni-directional on the code plane, the Pitch and Skew angles have the same
significance with respect to the code plane. However in some advanced code reading applications
performance can be improved by modifying the Skew angle.
The Pitch, Skew and Tilt angles are represented in the following figure.
Use the follow the suggestions for the best orientation:
•
Position the reader to avoid the direct reflection of the light emitted by the ABR reader. It is best to use at least 10°
for the Skew angle
•
Use a Pitch or Skew angle of 0° in some cases, such as low contrast or low illumination
•
Align the reader to fit linear barcodes into the horizontal FOV for best performance (because linear barcodes are
rectangular). The ABR can read labels with any tilt angle.
FOV
V
Figure 8. Code in FOV
Reading Features
See
on page 70 for FOV vs. Reading Distance considerations.
10
Pitch
minimize
No Pitch, Tilt
or Skew
Figure 7. Code Reading Orientation—Pitch, Tilt, and Skew Angles
FOV
H
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Skew
Tilt
assure at least 10º
any angle
inside FOV
Figure 9. Code Out of FOV Due to Tilt Angle
NO
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