Scanning Range; Depth Of Field - Datalogic PowerScan SR Benutzerhandbuch

Scanning Range

There are currently four different model types for this scanner.
Depending upon the model type of your scanner, you'll need to hold
the unit at a given distance from the bar code to achieve optimum
scanning results. The following diagrams provide range of field infor-
mation for each of the models when scanning grade A, Code 39 bar
codes: Standard Range (SR), High Density (HD), Long Range (LR)
and Extra Long Range (XLR).
NOTE

Depth of Field

Paper Labels (SR decoded model, Code 39)
5 mil
7.5 mil
10 mil
0 10 20
User's Guide
In the context of the illustration below, a "mil" repre-
sents the minimum bar code element width. Mea-
surements are based on SR models set with the
standard 28° scan width (as opposed to the Half
Angle setting of 14°). Reference the PowerScan Pro-
gramming Manual for more information about the
Half Angle feature.
Specifications are subject to change without notice.
Figure 3. Depth of Field (SR)
15 mil
20 mil
40 mil
1 2
30 40 50 60 70
55 mil
3
FEET
80 90 100 110 120
CENTIMETERS
4 5
130 140 150 160 170
9