Rockwell Automation 2755 Atomscan Bar Code Scanner - Manual (Page 7)

A–B
2
Chapter
2–1
AtomScan Product Family
This chapter gives an overview of features and accessories of AtomScan
scanners:
•
Overview of the AtomScan scanner reading system
•
Choosing an AtomScan scanner
•
Available decoders and accessories
•
Package detector and extension cables
The AtomScan scanner uses a visible laser diode for non-contact reading of
bar code symbols. The laser generates a small, concentrated light beam. The
beam is reflected off a 10-sided rotating mirror through the upper window in
the scanner. Light reflected from the symbol comes back through the lower
window, and is detected by a light sensor, which changes it to electrical
signals. The signals are sent to a decoder for further processing.
AtomScan scanners are designed for applications needing a small scanner to
fit into a limited space. It is particularly suited to small packaging and
labeling machines.
Note: AtomScan scanners are designed for use in clean environments.
Figure 2.1
How the AtomScan Scanner Works
To Label
Reflected Light from Symbol
(Diffuse Return)
!
ATTENTION: The AtomScan scanner contains no
user-serviceable parts. If the scanner is opened, the warranty is
void.
Chapter Objectives
Overview of Scanner