Sdsc 3m – Socket Mobile Secure Digital Scan Card Series 3 User Manual

Page 45

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background image

SDSC 3M

Typical Working

Ranges

Guaranteed

Working Ranges

Symbol

Density/ Bar

Code Type/ W-

N Ratio

Bar Code

Content/

Contrast

Note 1

Near

Far

Near

Far

4.0 mil

Code 39; 2.5:1

ABCDEFGH

80% MRD

1.00 in

2.50 cm

5.50 in

13.97 cm

2.20 in

5.59 cm

3.20 in

8.13 cm

5.0 mil

Code 39; 2.5:1

ABCDEFGH

80% MRD

1.25 in

3.18 cm

8.00 in

20.32 cm

2.20 in

5.59 cm

5.50 in

13.97 cm

7.5 mil

Code 39; 2.5:1

ABCDEF

80% MRD

1.50 in

3.81 cm

13.00 in
33.02 cm

2.00 in

5.08 cm

9.00 in

22.86 cm

10 mil

Code 39; 2.5:1

ABCDE

90% MRD

1.50 in

3.81 cm

18.00 in
45.72 cm

1.75 in

4.45 cm

13.00 in
33.02 cm

13 mil

100% UPC

12345678905

90% MRD

1.50 in

3.81 cm

24.00 in
60.96 cm

1.75 in

4.45 cm

17.00 in
43.18 cm

15 mil

Code 39; 2.5:1

ABCD

80% MRD

1.50 in

3.81 cm

25.00 in
63.50 cm

1.75 in

4.45 cm

18.00 in
45.72 cm

20 mil

Code 39; 2.2:1

123

80% MRD

1.75 in

4.45 cm

29.00 in
73.66 cm

X

19.00 in
48.26 cm

40 mil

Code 39; 2.2:1

AB

80% MRD

X

31.00 in
78.74 cm

X

21.00 in

53.34cm

55 mil

Code 39; 2.2:1

CD

80% MRD

X

35.00 in
88.90 cm

X

25.00 in
63.50 cm


Notes:
1.

CONTRAST measured as Mean Reflective Difference (MRD) at 650 nm.

2.

Near ranges on lower densities (not specified) are largely dependent upon
the width of the bar code and the scan angle.

3.

Working range specifications at ambient temperature (23°C),
Photographic quality symbols. pitch=10°, roll=0°, skew=0°, ambient light <
150 ft-candles.

4.

X - Dependent on width of bar code.

5.

Distances measured from front edge of chassis.

A

PPENDIX

D:

D

ECODE

Z

ONE

| 45

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