Step 10 Test Range For Bar Code Label; Figure 1-5 Depth Of Field - Microscan MS-820 User Manual

Step 10 — Test Range for Bar Code Label
1. Position a label in front of an operational scanner.
2. Click the Utilities button.
3. Right-click Read Rate and select
4. Observe rate in terminal window on the right of
the Utilities screen.
5. Move your bar code label towards the scanner
and away from the scanner until the decode
rates drop off in each direction as shown in
1-5.
This will give you a sense of the depth of field
(inner and outer ranges) for your symbol's density
and range.
6. To end test, right-click Read
Rate and select the Stop
Note: If the scanner is in the
default Continuous Read mode,
it will read and beep repeatedly
as long as a readable label
remains in the read range and
the read cycle configuration has
not changed.
Note: See "Formulas for Number
of Decodes" on page A-29
additional information on scan
width and depth of field.
1. If using an I 2/5 label, verify that the number of characters in the label being scanned matches
the code length enabled for the I 2/5 code type (default is 10 and 6). See
on page 5-14.
MS-820 Industrial Bar Code Scanner User's Manual
1
20 mil Code 39 Test Symbol
You can also find test symbols on the
back of the Microscan Marketing CD
jacket . The 20 mil
of the narrowest bar (e.g., 7.5 mil =
.0075" or .1905 mm).
Start.
figure
button.
Depth of
Field (DOF)
for

Figure 1-5 Depth of Field

Chapter 1 Quick Start
refers to the width
"Interleaved 2 of 5"
1-11