Operating Manual DLS2
15
8
Different Operation Modes
The DLS2 can detect different objects on a wide range of carrier materials. Following
objects can be defined:
•
Straight
lines
●
Holographic lines
•
Intermittent lines
●
Holographic pattern
•
Material edges
●
Printed pattern
In order to optimise the detection of above objects the DLS2 sensor must be set in the
right operation mode. There are 5 operation modes:
•
Line Detection
●
Hologram Detection
•
Line Edge Detection
●
Pattern Recognition
•
Material Edge Detection
8.1
Line Detection
In Line Detection Mode the sensor can detect lines from 0.5 mm to maximal 5.0 mm.
The characteristics of a line are gathered in the Calibration Procedure. Properties like
line width and the contrast on both line edges determine and describe each particular
line. A line will only be recognised as line, if following limits are adhered:
1.
The line width may not differ more then ±35% from the reference line.
2.
The absolute contrast may not differ more then 40% from the reference line
3.
The contrast steepness may not differ more then 40% from the reference line
4.
The direction of contrast change must match on both sides with the reference line.
To bring the sensor in Line Detection Mode press the
key.
The small green LED
above the key will light to confirm that this mode is active. The sensor will always follow in this
mode the centre of the line.
8.2
Line Reference Position
The line Detection mode distinguishes between three different reference positions:
•
Line edge left
•
Line edge right
•
Line centre
The Reference Position can be chosen with the
key. The small green LEDs above the
key indicate which Reference Positions is active.
