Operating Instructions
Chapter
4
CLV 480 Bar Code Scanner
8 010 080/O824/10-02-2005
©
SICK AG · Division Auto Ident · Germany · All rights reserved
4-9
Installation
code is located at different positions (angles), ensure that the limit values of the
permissible reading angles are not exceeded.
14. Adjust the CLV in such a way that the good read rate is between
70 to 100 %
.
With event-controlled dynamic focus control, for each defined reading range (distance
configuration), check the selected focus position and correct the parameter settings if
necessary (see
Chapter 6.4.3 Guide to parameterization menu, Page 6-9
).
15. Tighten the screws on the CLV.
The CLV is aligned with the bar code.
4.3.3
Help functions for adjusting the CLV
Adjusting mode
The "Adjusting mode" helps you to position the
center
of the scan line on the object. To do
so, the CLV masks out one half of the scan line from the center (code position CP = 50 to
CP = 100). This is irrespective of whether the CLV is operated in Autofocus mode or with
distance configurations for event-driven dynamic focus control.
shows the resulting
position of the scan line (line scanner).
Line scanner with oscillating mirror:
In "Adjusting" mode, the oscillating mirror behaves in the same manner as within the ”Per-
cent Evaluation” mode (
see
Chapter Activating Percentage Evaluation mode:, Page 4-8
1.
Activate the operating mode as described in
Chapter 6.5.3 Adjusting mode, Page 6-30
.
2.
Position the CLV in such a way that the center of the scan line, indicated by the end of
the scan line (code position CP = 50), is located at the center of the bar code, or at the
center of the field for all codes if several bar codes are used.
Show CP Limits
The "Show CP Limits" operating mode allows you to test whether the desired effect was pro-
duced by narrowing the scan line’s active evaluation range. The CLV alternatively hides cer-
tain parts of the scan line in accordance with the selected min. and max. values of the code
position.
For activation of this operating mode and for checking, See
Fig. 4-9:
Line scanner: scan line in Adjusting mode
CP = 100
CP = 50
CP = 0
Adjusting mode
Range masked out
Scan line