Appendix D: Internal Imager & Scanner Specifications
SE4600LR – Long Range Imager
D-14
Psion Omnii Hand-Held Computer User Manual
D.10
SE4600LR – Long Range Imager
Parameter
Specification
Input Voltages
VCC
VCC_INTFC
VCC_ILLUM
VCC_SENSOR
3.3 V
±
10%, 75 mA max
1.8 V
±
10% or 3.3 V
±
10%, 30 mA max
3.0 V - 8.4 V, 800 mA
3.3 V
±
10%, 70 mA max
VCC=VCC_SENSOR=VCC_INTFC =3.3 V VCC_ILLUM=5.0 V
Operating Mode Supply Cur-
rents (Average)
Low Power
Idle
Aim enabled, no illumination
or image acquisition
Image Acquisition
Illumination Enabled
Illumination and Aim Enabled
Low Power
750
µ
A
750
µ
A
20 mA
70 mA
80 mA
550 mA
600 mA
Maximum Sensor Power Supply
Noise* (VCC_SENSOR)
40 mV p-p (10 Hz - 50 KHz) and
100 mV p-p (50KHz - 100 KHz) for bar code decoding
30 mV p-p (10 Hz - 100 KHz) for image capture
Optical Resolution
Near sensor: 5 mil (Code 39), 10 mil (Data Matrix)
Far sensor: 15 mil (Code 39), 35 mil (Data Matrix)
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)
SE4600LR Far System: 11.6º horizontal, 7.4º vertical
SE4600LR Near System: 13º horizontal, 8.3º vertical
Aiming Element:
Visible Laser Diode (VLD)
Aiming Dot Optical Power
655
±
5 nm (dominant wavelength)
0.6 mW (typical)
Illumination System:
LEDs
Pattern Angle
625
±
5 nm (dominant wavelength)
16º horizontal x 11.5º vertical
Shock
2000 G
±
5% in the direction of any of the six principal axes applied via
the mounting surface at -20º and 55º C for a period of 0.85 ± 0.1 msec
2500 G
±
5% in the direction of any of the six principal axes applied via
the mounting surface at 23º C for a period of 0.70 ± 0.07 msec
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