User's Manual

Appendix E
Laser Decode Zone
The decode zone for the Class 2 laser in the SOMO 655 RFID Reader-Scan Card 6P2 is
shown below. The minimum element width (“X Dimension” or barcode “size”) is the
width in thousandths of an inch (mils) of the narrowest element (bar or space) in the
symbol. The figures shown are the typical scanning distances (depths of field) for
selected barcode sizes. The maximum usable length of a barcode symbol (Width of
Field) at any given range is also shown below.
Class 2 Laser Decode Zone
APPENDIX E: LASER DECODE ZONE | 49