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.
Sample Scan Profile
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
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.)
Calibrating the Verifier