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Chapter 6 Autocalibration

MS-880 Industrial Long Range Scanner User’s Manual 6-11

6–Autocalibration

Calibration Results Embedded Menu

To access Calibration Results menu from within the Autocalibration Setup menu,

(figure 6-5 on page 6-8) type the number 1.

The Calibration Results menu (an example shown here) shows the results of the

autocalibration process for Read Rate, Gain, and Tracking both the first and second

passes. Note that the first pass has only one reading for each parameter.

Focus Positions

In the example above, the focus position selected from the first calibration pass (posi-

tion 26) represents the optimal focus position for Read Rate, Gain, and Tracking.

The second “fine tune” pass commences 3 focus positions in from this and steps out

until the read rate drops off to zero.

Focal Range

The algorithm selects the best focus position (SET) as the midpoint between those

positions (IN and OUT) at which read rates drop off by no more than 6-2/3 percent of

the maximum read rate. For example, in the above menu, the read rate for focus

position 24 is 73. Since 73 is more than 6-2/3% below the maximum read rate of

100% shown elsewhere, the IN range falls under the next focus position, 25. A mir-

rored calculation is performed to locate the OUT focal range.

Press the enter key (CR) to return to the main calibration menu or Esc to leave the

Auto Calibration Setup menu entirely.

Figure 6-6 Embedded Calibration Results Menu

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