Advanced Code Reconstruction (ACR™)
Reference Manual 233
The formulas to calculate a maximum depend on various parameters such as:
label height, number of scans per second, code motion speed, etc. Minimum
label heights at different conveyor speeds are given in the tables in section ,
depending on standard a va
lue
s of 45° and 30°.
Minimum Code Height for Advanced Code Reconstruction
Based on the scanner read rate of 1000 scans/sec., minimum label heights at
different conveyor speeds are given in the tables below.
Refer to the reading diagrams in
section
for further details on the reading fea-
tures. These diagrams are taken on various resolution sample codes at a 25 C
ambien
t temperature depending on the conditions listed under each diagram.
•ANSI Grade B minimum
• 1000 scans/sec
The following tables describe the requirements
for s
tandard applications.
Minimum Code Height for ACR Reading (mm)
45° 30°
Conveyor Speed (m/s) 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 10 11 13 14 16 17 7 8 9 10 12 13
0.30 12 13 14 16 17 19 8 9 10 11 12 14
0.33 12 14 15 17 18 20 8 9 10 12 13 14
0.38 14 15 16 18 19 21 9 10 11 12 14 15
0.50 18 18 20 21 23 24 11 12 13 14 15 17
0.72 24 25 26 27 28 30 15 16 16 18 19 20
1.00 33 33 34 35 36 37 20 20 21 22 23 24
Ratio 3:1
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