Appendix D: Internal Imager & Scanner Specifications
SE4500SR – Standard Range Imager
Psion Omnii Hand-Held Computer User Manual
D-12
D.9
SE4500SR – Standard Range Imager
Parameter
Specification
Power Requirements - Input
Voltage
3.3 V
±
0.3 V at 23° C
Operating Mode Supply Currents (3.3VDC at 23° C):
Low Power
Idle
Image Acquisition
Illumination Enabled
Maximum Operating Current
500
µ
A
18 mA
80 mA
200 mA
250 mA (aiming on during exposure, illumination enabled)
Maximum Sensor Power Supply
Noise* (at 23° C)
100 mVp-p (3.3 V, 10 Hz - 100 kHz) for decoding
30 mVp-p (3.3 V, 10 Hz - 100 kHz) for image capture
Optical Resolution
5.0 mil (Code 39), 6.7 mil (PDF417)
Specular Dead Zone:
Illumination On
Illumination Off
Up to 20º depending on target distance and substrate glossiness
None
Skew Tolerance
±
60º
Pitch Angle
±
60º
Roll
360º
Ambient Light Immunity
(Sunlight)
9000 ft. candles (96,900 lux)
Imaging Sensor:
Image Resolution
Grey Scale
Field of View (FOV)
752 H x 480 V pixels (Wide VGA)
256 levels (8 bits per pixel)
SE4500-SR: 39.6º horizontal, 25.7º vertical
Focusing Distance from Front
of Engine (SR)
8 in. / 20.3 cm
Aiming Element:
Visible Laser Diode (VLD)
Central Dot Optical Power
Pattern Angle
655
±
10 nm
0.6 mW (typical)
40º horizontal, 30º vertical
Illumination System:
LEDs
Pattern Angle
625
±
5 nm (dominant wavelength)
60º x 40º at 80% center intensity
Shock
2000 G
±
5% applied via any mounting surface at -30º and 55º C for a period of
0.85
±
0.05 msec
2500 G
±
5% applied via any mounting surface at 23º C for a period of
0.85
±
0.05 msec
Vibration
Unpowered SE4500 withstands a random vibration along each of the X,
Y, and Z axes for a period of one hour per axis (6 G rms), defined as follows:
20 to 80 Hz Ramp up at 0.04 G
2
/Hz at 3 dB/octave
80 to 350 Hz 0.04 G
2
/Hz
350 Hz to 2 kHzRamp down at 0.04 G
2
/Hz at 3 dB/octave
ESD
±
2 kV @ connector
Laser Safety Class
CDRH / IEC Class 2
LED Class
IEC Class 1M
Maximum Engine Dimensions 11.8 mm H x 21.50 mm W x 16.3 mm D
0.46 in. H x 0.85 in.W x 0.64 in. D
Weight
8.0 grams (0.28 oz)
Electrical Interface
21 pin 0.3 mm pitch ZIF connector
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