A - 6 MC45 Integrator Guide
Table A-3
SE965 Decode Distances
Symbol Density/Bar
Code Type
Bar Code
Content/Contrast
NOTE 1
Typical Working Ranges
Near Far
5.0 mil
Code 128
1234
80% MRD
1.20 in
3.05 cm
7.70 in
19.56 cm
5.0 mil
Code 39; 2.5:1
ABCDEFGH
80% MRD
1.20 in
3.05 cm
12.50 in
31.75 cm
7.5 mil
Code 39; 2.5:1
ABCDEF
80% MRD
1.10 in
2.79 cm
18.50 in
46.99 cm
10 mil
Code 128
1234
80% MRD
1.20 in
3.05 cm
Note 3
19.00 in
48.26 cm
13 mil
100% UPC
12345678905
90% MRD
1.60 in
4.06 cm
27.00 in
68.58 cm
15 mil
Code 128
1234
80% MRD
1.00 in
2.54 cm
Note 3
29.50 in
74.93cm
20 mil
Code 39; 2.2:1
123
80% MRD
1.40 in
3.56 cm
Note 3
52.00 in
132.08 cm
55 mil
Code 39; 2.2:1
CD
80% MRD
3.40 in
8.64 cm
Note 3
100.00 in
254.00 cm
100 mil
Code 39; 3.0:1
123456
80% MRD
2 ft
60.96 cm
Note 3
17 ft
518.16 cm
Notes:
1. CONTRAST measured as Mean Reflective Difference (MRD) at 650 nm.
2. Working range specifications at ambient temperature (23
o
C), Photographic quality symbols.
pitch = 10
o
, roll = 0
o
, skew = 0
o
, ambient light < 150 ft-candles using Motorola or equivalent decoder.
3. Dependent on width of bar code.
4. Distances measured from front edge of chassis.
5. LED lighting with high AC ripple content can impact scanning performance.