Rockwell Automation 2755 2D Hand-Held Scanner - Manual (Page 89)

Appendix
A
Specifications
Optical
Scan Pattern
Start Time 0.065 sec. to 75% of steady state horizontal amplitude;
0.50 sec. to 90% of steady state vertical amplitude
Pattern Size At 9.5 in. (24.13 cm) from the nose of the scanner, the
pattern is 7.2 in. (18.3 cm) horizontally and 2.4 in. (6.1
cm ) vertically.
Scan Rate 560 scans/second 280 Hz 10 horizontal
Frame Rate 25 frames/second 12.5 Hz 1 horizontal
Optical Resolution Can decode a 6.6 mil (minimum X-dimension) symbol
(PDF417); Y-dimension must be 3X.
Angular Orientation Tolerances
Pitch Tolerance 30_ front-to-back
Skew 15_ from plane parallel to symbol (side-to-side)
Rotational Tolerance 
4
_
(for scanning benchmark label, assuming 3:1
codeword aspect ratio)
Dead Zone/Optical Throw
1-D Labels 
2
_
from beam direction
2-D (PDF417) Labels 
9
_
from beam direction
Print Contrast Resolution
1-D Labels 25% absolute dark/light reflectance differential,
measured at 675 nm.
2-D (PDF417) Labels 35% absolute dark/light reflectance differential,
measured at 675 nm.
Ambient Light Immunity 8000 ft. candles (86,112 lux) of sunlight
Electrical
Laser Diode Power 1.2 mW, maximum
Power Requirements +5V dc, 390 mA (typical)