GE XL VU Operating Manual page 104

Measurement
Taking Stereo Measurements
1.
Attach the stereo tip securely, and verify it.
2.
Position the probe tip for maximum accuracy. Do this by
centering the item of interest to be measured while maximizing
its magnification.
3.
Freeze the image. Stereo measurements require a sharp focus
for the best results.
4.
Select the measurement type and optical tip.
5.
Place the cursors in the left image.
Measurement accuracy depends on all cursors being positioned
accurately. To ensure accuracy, press the
activate zoom window for a close-up view of the image around
the active cursor.
As the first cursor is moved, the matching cursor in the right
image moves accordingly.
6.
Inspect each matching cursor as soon as it appears.
7.
Do not become complacent with high match strength values.
Always scrutinize the matching cursor's location.
8.
If a matching cursor is not placed correctly, use the
left soft key to go back to the frozen image and start over or
recapture a better image.
9.
When the measurement result is displayed in the blue
background use the joystick to position it at a convenient location
not blocking the item of interest.
10.
Save the image, or press Freeze/Enter to allow repositioning of
any of the cursors or reposition the location of the measurement
result.
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right soft key to
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XL Vu™ VideoProbe