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Calibrating the Verifier 3-3
Optimum signal amplitude should be adjusted so the bar
code element reflectances are between the 90% and 10%
marks shown in yellow on the screen. Verifier angle has the
most effect on the signal amplitude.
c) Continue adjusting the verifier’s placement until a good,
centered scan profile is obtained. The scan angle may have
to be altered slightly to achieve a good reflectance profile.
If adjustment of scan angle does not produce the correct
signal amplitude or placement, adjust verifier gain and offset
per “Adjusting Scanner Gain and Offset” in the SV Series
Operator’s Guide.
8. Place ScanVision in session mode (normal operating mode when
ScanVision starts). Refer to the SV Series Operator’s Guide for more
information:
a) Click on the Report an Analysis speedbutton.
b) Ensure that X in the lower panel of the Bar Code Analysis
screen matches the X dimension of the symbol within
+/- .1 mil.
c) Adjust distance of the verifier from the bar code until the X
dimension matches the desired value. (If X is analyzed as
too large, move the verifier away; if X is too small, move it
closer.)
Sample Scan Profile