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READING FEATURES
4
We define the Tilt angle as the angle (α) between the laser beam and a line parallel
to the barcode label, as shown in Figure 50.
Laser Beam
α
0° to
max
α
α
= tilt angle
Figure 50 - Tilt angle
The formulas to calculate α maximum depend on various parameters such as: label
height, number of scans per second, code motion speed, etc. To obtain α maximum
for your application, please contact your Datalogic representative.
You must remember that the decoder will be able to read the label with a tilt angle
between + α max and - α max as shown in Figure 51 (the shaded zones are the NO
READ zones).
0°
α
+ α
-
Laser Beam
Figure 51 - Reading zones with α max
4.2
PACKTRACK™
PackTrack™ is a patented operating mode for DATALOGIC Omni-Directional
Reading Stations used to read and correctly assign codes read on parcels when
placed in the scanner Reading Area at the same time.
In fact, in the following example (Figure 52), the codes of two or more consecutive
parcels are found at the same time in the scanner reading area. Therefore the
condition occurs where, in the sequence of the two parcels, the code of the second
parcel is read first, just before the code of the previous parcel. A system without
PackTrack™ would assign the code of the second parcel to the first parcel and
viceversa, thus causing a gross error in the sortation.
43
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