TC8300 Touch Computer Product Reference Guide

SE965 Standard Range Laser Decode Zones

The table below lists the typical distances for selected barcode densities. The minimum element width (or “symbol density”) is the width in mils of the narrowest element (bar or space) in the symbol.

SE965 Decode Distances
Symbol Density/ Barcode Type/ W-N Ratio	Barcode Content/ Contrast (Note 1)	Typical Working Ranges
Symbol Density/ Barcode Type/ W-N Ratio	Barcode Content/ Contrast (Note 1)	Near	Far
5.0 mil Code 128	1234 80% MRD	1.2 in. 3.05 cm	7.7 in. 19.56 cm
5.0 mil Code 39; 2.5:1	ABCDEFGH 80% MRD	1.2 in. 3.05 cm	12.5 in. 31.75 cm
7.5 mil Code 39; 2.5:1	ABCDEF 80% MRD	1.1 in. 2.79 cm	18.5 in. 46.99 cm
10 mil Code 128	1234 80% MRD	1.2 in. (Note 3) 3.05 cm (Note 3)	19.0 in. 48.26 cm
13 mil 100% UPC	12345678905 80% MRD	1.6 in. 4.06 cm	27.0 in. 68.58 cm
15 mil Code 128	1234 80% MRD	1.0 in. (Note 3) 2.54 cm (Note 3)	29.5 in. 74.93 cm
20 mil Code 39; 2.2:1	123 80% MRD	1.4 in. (Note 3) 3.56 cm (Note 3)	52.0 in. 132.08 cm
55 mil Code 39; 2.2:1	CD 80% MRD	3.4 in. (Note 3) 8.64 cm (Note 3)	100.0 in. 254.00 cm
100 mil Code 39; 3.0:1 reflective	123456 80% MRD	2 ft (Note 3) 60.96 cm (Note 3)	17 ft 518.16 cm
Notes: Contrast measured as Mean Reflective Difference (MRD) at 650 nm. Working range specifications at ambient temperature (23°C), photographic quality symbols. Pitch=10°, roll=0°, skew=0°, ambient light < 150 ft-candles using Symbol or equivalent decoder. Dependent on width of barcode. Distances measured from front edge of scan engine chassis.