1 - introduction, Both fields far field sxga near field – Code CR2 User Manual
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2.1 - Introduction
From the moment you turn on your CR2, you are taking full advantage of the dual path 1.3 megapixel imager, the 400
MHz processor. CR2 readers are able to read a wide range of symbology types and sizes, as well as a variety of printed
media, within a wide range of environmental factors including light (natural or ambient lighting).
By defining if you are scanning large, small, high denisty or low density types of symbology(s), the CR2 has options that
will maximize decoding speed.
The chart below shows options that will improve performance based on parameters listed in each box.
The CR2 is easily customizable; each trigger can be independently programmed for different behavior.
Near Field (NF): The closest optimal focal point of the CR2’s two image fields. The Near Field can decode the highest
density barcode. It has an optimal focal point of 4” (101.6 mm) away from the lens of the reader. See Figure 1.26 for
optimal read distances.
Far Field (FF): The farthest field of the CR2’s two image fields. It has an optimal focal point of 9” (228.6 mm) away from
the lens of the reader with a 4” wide field of view at this point.
The following tables provide readable codes to program all or individual triggers to perform within different parameters.
See Figure 1.26 for optimal read distances.
SB
High Density Codes
Standard Density Codes
Small to Large Codes
SN
High Density Codes
Small Size
2D
SF
Standard Density Codes
Medium to Large Codes
Both
Fields
Far
Field
SXGA
Near
Field