Integrating The Scanner To Read At The Proper Distance - Datalogic Gryphon GFE4400 Integration Manual

Mounting the Scanner

Integrating the Scanner to Read at the Proper Distance

When deciding how to mount the OEM scanner, there are many criteria
that must be considered. First, there are minimum and maximum distanc-
es that the bar code can be from the front of the scanner to be properly
read, depending on the size of the bar code. These distances, or depth of
field, are specified in "Technical Specifications" on page 17.
The scanner must be positioned so that the scan volume and illumination
light will cover the entire bar code. The scan volume is shown in Figure 9.
The combination of the Scan Volume and the illumination light is called
the Field of View. Designing around the scanner Field of View is ex-
plained more in the following section.
Figure 9. Scanning Volume
169mm
Scan Volume @ 188mm
14 Gryphon™ GFE4400