Opticon NLV-4001 - 8.2 Scan Area and Depth of Field; 8.3 Printed Contrast Signal (PCS)

NLV-4001
2nd
11
SPECIFICATIONS MANUAL
8.2 Scan Area and Depth of Field
The scan area is within the arc centered on the scan origin as shown in each resolution, which is
measured from the front edge of the scanner.
(Code39, Environment illumination=500 lux, Temperature = 25˚C)
Figure 8: Scan Area and Depth of Field
8.3 Printed Contrast Signal (PCS)
0.3 or higher
<Conditions>
MRD
: 32 % or higher (70% or higher reflectivity of space and quiet zone)
Distance
: 59 mm from the front edge of the scanner
Bar code
: JAN-13, resolution 0.26 mm, PCS 0.3 specified in Section 8.1.
MRD = Minimum reflectance of white space – Maximum reflectance of black bar
PCS =
Reflectance of white space – Reflectance of black bar
Reflectance of white space
* Be sure to keep the optical window clean without dirt or scratches, or it may have a bad effect on the reading
characteristics.
450 500
550 600 650 700
0
50 100
150 200 250 300
350
400
2"
4"
6" 8"
10"
12"
14"
16"0"
0 50
50
25
25
75
75
100 100
125
150
125
150
0" 2"2" 1"1"
3"
3"
4" 4" 5" 6"5"6"
[ mm ]
[ inch ]
[ mm ]
[ inch ]
Code 39
0.127 mm
0.15 mm
0.25 mm
0.50 mm
1.00 mm
18"
60 170
55
50
55
80
190
300
400
700
[Unit: mm]
2"
4"
6" 8"
10"
200175
225
250
275
300
8"
7"
9"
10"
11"
12"
325
13"
200 175
225
250
275
300
7"
9" 8"
10"
11"12"
13"
325