MANUAL MOUNTING CALIBRATION
254
AV7000 LINEAR CAMERA
Adjusting the Focus (Far Working Distance (Z) )
1. The Far Working Distance must be adjusted to read an equal number of step lad-
der and picket fence barcodes on the Picket Fence/Step Ladder Test Chart.
2. Place the Pick
et Fence/Step Ladder Test Chart on the test box. The first part of the
data of the barcode indicates the mil/mm size of the narrow element.
3. Run a box with the Picket Fence/Step Ladder Test Chart through the system. The
goal is to have the same number of picket fence and ladder barcodes decoded. In
the following example, there are more barcodes decoded in one orientation than
the other. This indicates that the camera is not focused correctly.
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