Rockwell Automation 2755 Atomscan Bar Code Scanner - Manual (Page 28)

A–B
4
Chapter
4–1
Installing the AtomScan Scanner
This chapter provides the information needed to mount, wire, and correctly
aim the scanner. The following subjects are covered:
•
Environmental Issues
•
Aiming the scanner
•
Mounting Options
•
Package Sensor Orientation
•
Connecting the Scanner and Package Sensor
The AtomScan scanner is totally enclosed. It can tolerate light dust. However
it is not designed for use in harsh environments such as wash-down. If your
environment is harsh, consider using the NEMA Type 4 enclosed
2755-LD4x4 or 2755-LD8x4, where x is the focus code, A, B, C, or D.
Chapter 3 presented information necessary to select the correct scanner for
your application. The most important factors to consider in mounting the
scanner are:
•
make sure the bar code symbol passes within the scanner’s reading range
•
make sure the scan line will pass through all the symbol’s bars and the
quiet zones
•
mount the scanner so the scanning plane is 20
°
-30
°
off the perpendicular
Figure 4.1
Correct Setup of Scanner
20 _-30_
20 _-30_
Scanner between 20 _ and 30_
above or below the symbol
CAUTION:
Do not stare into laser beam, to avoid damage to your eyes.
Chapter Objectives
Environmental
Considerations
Aiming the Scanner