Operating Instructions
Chapter
10
CLV 480 Bar Code Scanner
8 010 080/O824/10-02-2005
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-59
Appendix
10.15 Glossary
For further terms, please refer to the
"CLV-Setup Help".
Adjusting mode
Special operating mode that enables the center of the scan line to be positioned exactly on
the object containing the bar code.
Aperture angle
α
Angle within whose limits the laser beam is deflected by the polygon mirror wheel. A
V-shaped range perpendicular to the scan direction, which must contain the bar code, is
formed in front of the reading window. If only part of this aperture angle is used (part of the
scan line symmetric around the center point), the depth of field for the focus position and
resolution is greater.
Aspect ratio
Ratio code height (bar length) to code length (numer of characters) Using the SMART De-
coder even bar codes with very small code height can be read.
Auxiliary input
Special function on
Ö
the terminal interface. Used to enter bar code data subsequently in
order to complete reading results sent to the host.
Capture range
Zone around a moving bar code created by the CLV using the increment management and
code position comparison functions. Enables bar codes with identical contents and code
type to be separated.
Christmas tree effect
Effect caused by limiting the active scan line range (CP values) and oscillating amplitude
(CW values) on the
Ö
line scanner with oscillating mirror. In this way, a uniform sharply
defined window can be created in the reading field for each distance configuration,
independent of the reading distance.
CLV-Setup
PC program that runs on Windows 95
TM
/98
TM
, Windows NT4.0
TM
, Windows 2000
TM
and Win-
dows XP
TM
and is used to parameterize the CLV offline (adjust the device to the local condi-
tions) and operate it online. The parameter set is exchanged with the CLV by
Ö
uploading
and
Ö
downloading it.
CLV-Setup Help
Online help function that provides support for using the "CLV-Setup" program. The help
function explains the CLV parameters and their permissible values and can be launched
directly from CLV-Setup in an HTML browser, such as Internet Explorer
TM
supplied with the
program.
Code angle (CW value)
Current deflection range of he scan line (oscillating mirror) perpendicular to the scan
direction when a bar code is recorded. Calculated by the CLV for each scan and used, for