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READING FEATURES
7
7.1.2 Advanced Code Reconstruction Reading Conditions
ANSI Grade B minimum scans/sec
three codes enabled simultaneously background
The following tables describe the minimum code height requirements (in mm) for standard
ACR4™ applications depending on the code symbology.
Minimum Code Height for ACR4 Reading (mm)
45° max 30° max
Speed 0.5 1 1.5
2 2.5
3 0.5
1 1.5 2 2.5
3
2/5 Interleaved
Code Resolution
(mm)
0.25
12 15 18 21 23 26 8 11 13 15 17 19
0.30
14 16 19 22 25 28 9 11 14 16 18 20
0.33
15 17 20 23 26 29 10 12 14 16 19 21
0.38
16 19 22 24 27 30 11 13 15 17 20 22
0.50
20 22 25 28 31 34 13 15 17 19 22 24
0.72
26 29 32 35 37 40 17 19 21 23 25 28
1.00
35 37 40 43 46 49 21 24 26 28 30 33
Ratio 3:1
Table 1
Minimum Code Height for ACR4 Reading (mm)
45° max 30° max
Speed 0.5 1 1.5
2 2.5
3 0.5
1 1.5 2 2.5
3
Code 39
Code Resolution
(mm)
0.25
11 14 16 19 22 25 8 10 12 14 16 19
0.30
12 15 18 20 23 26 8 10 13 15 17 19
0.33
13 16 18 21 24 27 9 11 13 15 18 20
0.38
14 17 20 22 25 28 9 12 14 16 18 21
0.50
17 20 22 25 28 31 11 13 16 18 20 22
0.72
22 25 28 31 33 36 14 16 19 21 23 25
1.00
29 32 35 37 40 43 18 20 23 25 27 29
Ratio 3:1; Interdigit = Module Size
Table 2
Minimum Code Height for ACR4 Reading (mm)
45° max 30° max
Speed 0.5 1 1.5
2 2.5
3 0.5
1 1.5 2 2.5
3
Code 128 – EAN 128
Code Resolution
(mm)
0.25
9 12 15 18 21 23 7 9 11 13 16 18
0.30
10 13 16 19 22 24 7 9 12 14 16 18
0.33
11 14 16 19 22 25 8 10 12 14 17 19
0.38
12 15 17 20 23 26 8 10 13 15 17 19
0.50
14 17 20 22 25 28 9 12 14 16 18 21
0.72
18 21 24 27 29 32 12 14 16 19 21 23
1.00
24 26 29 32 35 38 15 17 19 22 24 26
Table 3
87
7
DS4800 REFERENCE MANUAL
Minimum Code Height for ACR4 Reading (mm)
45° max 30° max
Speed 0.5 1 1.5
2 2.5
3 0.5
1 1.5 2 2.5
3
Codabar
Code Resolution
(mm)
0.25
10 12 15 18 21 24 7 9 11 14 16 18
0.30
11 13 16 19 22 25 7 10 12 14 16 19
0.33
11 14 17 20 22 26 8 10 12 14 17 19
0.38
12 15 18 21 23 26 8 11 13 15 17 20
0.50
15 17 20 23 26 29 10 12 14 16 19 21
0.72
19 22 25 27 30 33 12 15 17 19 21 24
1.00
25 27 30 33 36 39 16 18 20 22 25 27
Ratio 3:1; Interdigit = Module Size
Table 4
Minimum Code Height for ACR4 Reading (mm)
45° max 30° max
Speed 0.5 1 1.5
2 2.5
3 0.5
1 1.5 2 2.5
3
EAN 8-13, UPC-A
Code Resolution
(mm)
0.25
9 12 15 18 21 23 7 9 11 13 16 18
0.30
10 13 16 19 22 24 7 9 12 14 16 18
0.33
11 14 16 19 22 25 8 10 12 14 17 19
0.38
12 15 17 20 23 26 8 10 13 15 17 19
0.50
14 17 20 22 25 28 9 12 14 16 18 21
0.72
18 21 24 27 29 32 12 14 16 19 21 23
1.00
24 26 29 32 35 38 15 17 19 22 24 26
Table 5
NOTE
To maximize scanner performance in Advanced Code Reconstruction
Reading applications, enable only the code symbologies that will actually be used in the application and disable any code symbologies that will not be used in the application.
88
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