Datalogic Matrix 320 Product Reference Manual page 140

READING FEATURES
T
exp (max)
resolution). Values above the curve result in blurring. In practice, the application values
are somewhere below the theoretical line, (in the green area), due to environmental
and other conditions.
For example, the maximum target speed in the application is also affected by these con-
ditions:
•
•
•
The Internal Lighting parameter allows setting the operating mode of the internal light-
ing system. The possible values are:
•
•
•
NOTE
•
122
MATRIX 320
and LS are represented in the graph below as the curved line for X (code
(max)
Code/Background Contrast: maximum speed decreases when decreasing image
contrast (poor quality codes, reflective transparent coverings, different supports
and printing techniques).
Code Resolution: maximum speed increases when decreasing code resolution,
(i.e. 2X). There is a decrement of overlapping effects between two adjacent ele-
ments.
Tilt Angle: maximum speed decreases when increasing Tilt angle (from 0 to 45
degrees).
Disabled: the built-in LED array is turned off all the time. This option can be useful
if using an external lighting system;
Always ON: the built-in LED array is turned on all the time at the lowest power
level. This option is useful if the LED-array blinking (Strobed operating mode) dis-
turbs the operator.
-Power Strobed: the built-in LED array is on only during the image exposure time.
Different Power Strobed lighting levels can be set.
To avoid LED array overheating, for Power Strobed settings, the program
automatically limits the range of allowed values for the Exposure Time
parameter. Therefore, after changes to Internal Lighting, recheck Expo-
sure Time.
Continuous High-Power: the internal lighting system is turned on continuously at
the highest power level. This option is useful if the LED-array blinking (Strobed
lighting mode) disturbs the operator.