Bluetooth A - 13
Figure A-4
RS309 42
°
Decode Zones
Table A-11
RS309 Decode Distances
Symbol Density/
Bar Code Type/
W-N Ratio
Bar Code Content/
Contrast
Note 1
Typical 30° Working
Ranges
Typical 42° Working
Ranges
Near
Far
Near
Far
5.0 mil
Code 39; 2.5:1
ABCDEFGH
80% MRD
4.25 in.
10.79 cm
8.00 in.
20.32 cm
4.50 in
11.43 cm
9.25 in
23.5 cm
7.5 mil
Code 39; 2.5:1
ABCDEF
80% MRD
3.75 in.
9.53 cm
13.50 in.
34.29 cm
4.25 in
10.79 cm
14.75 in
37.47 cm
13 mil
100% UPC
012345678905
80% MRD
2.75 in.
6.98 cm
26.75 in.
67.95 cm
3.25 in
8.26 cm
26.00 in
66.04 cm
Notes:
1. CONTRAST measured as Mean Reflective Difference (MRD) at 650 nm.
2. Near ranges on lower densities are largely dependent upon the width of the bar code and the scan angle.
3. Working range specifications: Photographic quality symbols, pitch = 10°, skew = 0°, roll = 0°,
ambient light < 150 ft. candles, and temperature = 23°C
In.
cm
SE 1224
5 mil
5.00
9.25
7.5 mil
13 mil
4.25
14.75
26.00
30.50
70.75
20 mil * (25% MRD)
40 mil *
86.00
55 mil *
*Minimum distance determined by symbol length and scan angle
W
i
d
t
h
o
f
F
i
e
l
d
Depth of Field
Note: Typical performance at 68°F (20°C)
on high quality symbols.
3.25
2.00
3.25
4.50
0
5
10
15
5
10
15
20
25
20
25
0
12.7
25.4
38.1
12.7
25.4
38.1
50.8
63.5
50.8
63.5
100% UPC
70
177.8
65
165.1
60
152.4
55
139.7
50
127.0
45
114.3
40
101.6
35
88.9
30
76.2
25
63.5
20
50.8
15
38.1
10
25.4
5
12.7
0
0
90
85
80
75
228.6
215.9
203.2
190.5
30
35
76.2
88.9
in
cm
35
30
88.9
76.2
41.50
20 mil * (80% MRD)
In.
cm
SE 1224
5 mil
4.25
8.00
7.5 mil
13 mil
3.75
13.50
26.75
41.50
72.00
20 mil * (80%MRD)
40 mil *
86.25
55 mil *
*Minimum distance determined by symbol length and scan angle
W
i
d
t
h
o
f
F
i
e
l
d
Depth of Field
Note: Typical performance at 68°F (20°C)
on high quality symbols.
2.75
2.25
4.00
5.75
0
5
10
15
5
10
15
20
25
20
25
0
12.7
25.4
38.1
12.7
25.4
38.1
50.8
63.5
50.8
63.5
100% UPC
70
177.8
65
165.1
60
152.4
55
139.7
50
127.0
45
114.3
40
101.6
35
88.9
30
76.2
25
63.5
20
50.8
15
38.1
10
25.4
5
12.7
0
0
90
85
80
75
215.9
203.2
190.5
in
cm
30.50
20 mil * (25%MRD)
228.6
RS309
Summary of Contents for WT41N0
Page 1: ...WT41N0 WEARABLE TERMINAL INTEGRATOR GUIDE ...
Page 2: ......
Page 3: ...WT41N0 INTERGRATOR GUIDE 72E 160600 01 Rev A December 2012 ...
Page 6: ...iv WT41N0 Integrator Guide ...
Page 18: ...xvi WT41N0 Integrator Guide ...
Page 60: ...3 6 WT41N0 Integrator Guide ...
Page 64: ...4 4 WT41N0 Integrator Guide ...
Page 118: ...7 16 WT41N0 Integrator Guide ...
Page 122: ...8 4 WT41N0 Integrator Guide ...
Page 154: ...A 20 WT41N0 Integrator Guide ...
Page 156: ...B 2 WT41N0 User Guide ...
Page 170: ...Index 4 WT41N0 Integrator Guide ...
Page 171: ......