Rockwell Automation 2755-L7, -L9 Scanners - Manual (Page 24)

Chapter 4
Installation
4–2
The decoder and scan head are separate units that can be mounted in different
locations. A 10 foot (3 meter) or 25 foot (7.6 meter) cable is used to connect
the two units. Figure 4.1 illustrates the dimensions of the scan head.
Figure 4.1
Mounting Dimensions of the Scan Head
1.33 in
3.38 cm
1.357 in
3.45 cm
3.00 in
7.62 cm
Back View
2.69 in
6.83 cm
2.69 in
6.83 cm
2.20 in
5.59 cm
3.19 in
8.05 cm
5.38 in
13.67 cm
10–32UNF–2B
x .31
Front View
10–32UNF–2B
x .31
Bottom View
4.75 in
12.07 cm
3.00 in
7.62 cm
4.75 in
12.07 cm
2.69 in
6.83 cm
4.75 in
12.07 cm
12.5 in
31.75 cm
4.75 in
12.07 cm
Before installing the scan head, review the following information:
•
Determine the optimum position of the scan head relative to the labels
that are to be read. Refer to Chapter 3 for positioning information.
•
If you are using the optional swivel base or brackets, add their dimensions
into your positioning calculations.
•
Allow a minimum clearance of 8 inches (20.3 cm) at the rear of the scan
head so you can attach the cables to the various ports.
•
Securely mount the scan head to a rigid surface to ensure proper operation
of the scanning mechanism.
The thickness of your mounting surface determines the length of the screws
or bolts required. You will need two 10–32 screws, with flat and split
washers. Select a length that equals the thickness of the mounting surface,
thickness of the washers plus the depth of the screw holes,
3 /
8
–inch (9.5
mm).
Determining the Space
Requirements
Mounting the Scan Head