User's Manual
36
ITEM SPECIFICATION
Scan repetition rate 39 (± 3) scans/sec (bi-directional)
Laser power 1.2mW nominal (Scanning Mode)
0.8mW nominal (Aim Mode)
Laser Class IEC Class 2 devices
Print contrast Minimum 25% absolute dark/light
reflectance measured at 650nm
Scan angle 53º (typical)
Ambient Light Immunity
• Sunlight
• Artificial light
10 000 ft. candles / 107.640 lux
450 ft. candles / 4.844 lux
Usable scan distance depends on the bar code size and pitch, quality of the bar code
print and ambient light conditions as well as the pitch and angle of the laser beam in
reference to the bar code surface. Further information available from Nordic ID upon
request.
The laser engine used in the RF650 is programmed during the manufacturing process
by defining certain operational parameters with default values. These values may be
changed by the user by first setting the unit into a special programming mode and
then by scanning special bar codes listed below.
User programmable parameters with detailed descriptions and the respective bar
codes are listed in the following chapters and the factory default values are listed in
the next section starting at next page.