Barcode Scanner VB14
READING FEATURES
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
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13.2
PICKET-FENCE MODE
If scanning is parallel to the code motion, (figure 13.2 - "picket-fence" mode), the
number of effective scans is given by the following formula:
SN = [((FW-LW)/LS)
∗
SS] - 2
Where:
SN = number of effective scans
FW = reading field width (in mm)
LW = label width (in mm)
LS = label movement speed (in mm/s)
SS = scans per second
Figure 13.2 "Picket-Fence" scanning mode
For example, for a 100 mm wide code moving in a point where the reading field is 200
mm wide at a 2000 mm/s speed, the VB14-440 (800 scans per sec.), performs:
[((200-100)/2000
∗
800] - 2 = 38 scans
13.3
PERFORMANCE
The VB14 scanner is available in different versions according to the reading
performance.
Refer to the diagrams given in see section 13.3.1 for further details on the reading
features. They are taken on various resolution sample codes at a 25 *C ambient
temperature, depending on the conditions in the notes under the diagrams.
Version
Max Code Resolution
mm (mils)
Speed
scans/s
VB14-300
0.20 (8)
800
VB14-100
0.12 (5)
600
VB14-440
0.25 (10)
400-1,000
VB14-600
0.35 (14)
400-1,000
Laser
beam
Code motion
direction
at LS speed
VB14
LW
FW
