Chapter 5 ONLINE HELP SOPAS
LECTOR®620
30 © SICK AG · Germany · All rights reserved · Subject to change without notice 8013778/Y269/2013-11-27
Parameters
5.4.1.2.2 Exposure time
The time frame for taking an image is defined in μs via the Exposure time parameter. The
exposure time can be entered in the input field.
• A short exposure time can accommodate high object speeds. As this causes the image
brightness to decrease, it may be necessary to adjust the signal amplification (Exposure
time). This does, however, increase the image noise.
• A long exposure time offers a high level of brightness and therefore minimal image noise.
This is the optimal setting for stationary or slow-moving objects.
5.4.1.3 Image settings
The image brightness and contrast settings are made via the parameters in the Image set-
tings group.
A good image that displays the code clearly is essential for a reliable reading. Optimizing the
image settings results in better code identification and therefore increases the reliability of
the reading.
5.4.1.3.1 Brightness
The amplification of the signal is set via the Brightness parameter. The signal amplification
can be set via the slide control.
The image brightness can be adjusted by amplifying the signal in order to achieve better vi-
sibility and decodability. When setting the signal amplification, it should be noted that an
overly high setting causes significant image noise and therefore makes it difficult to read
the code.
For this to be avoided, the value should be increased in stages until the code can be
read successfully.
5.4.1.3.2 Brightness
The amplification of the signal is set via the Brightness parameter. The signal amplification
value can be entered into the input field.
The image brightness can be adjusted by amplifying the signal in order to achieve better vi-
sibility and decodability. When setting the signal amplification, it should be noted that an
overly high setting causes significant image noise and therefore makes it difficult to read
the code.
For this to be avoided, the value should be increased in stages until the code can be
read successfully.
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