Troubleshooting Measurement - GE XL VU Operating Manual

Maintenance

Troubleshooting Measurement

Inaccurate Stereo Measurements
Move the probe tip as close as possible to the target, maximizing
magnification.
Verify that the tip is attached to the probe matches the tip information that
is selected in the software.
Verify the correct type of measurement has been selected.
Verify that the optical tip is threaded on to the probe head securely.
Measure the target contained in the verification block to ensure that no
tip damage has occurred. See Verifying Measurement Tips.
Incorrect measurements can result from dirty tip optics. A tip that
visually appears clean may have a film of oil that will negatively affect
measurement performance. Follow cleaning directions listed in
Maintenance section.
Inaccurate Stereo Measurements
Avoid placing cursors in areas of significant glare. If necessary, adjust
the brightness or reposition the probe tip to enhance details and reduce
glare.
Verify that the object to be measured is near the center of the screen.
Verify that the matching cursor is correct within 1 pixel. If it is not clearly
visible where the match point should be, select a different point, or
capture the image from a different angle that better reveals details to
allow better matching.
Activate the zoom window to most accurately place the measurement
cursors.
Review guidelines under Positioning the Probe Tip for Maximum
Accuracy.
114 XL Vu™ VideoProbe