DMTA-10040-01EN, Rev. E, February 2018
Using the Instrument 267
Place the probe in a defect-free area of the calibration standard near the thru-
wall flaw, press the NULL foot switch, and scan the entire length of tube.
The large indication of the support ring should be minimized, as shown in
Figure 5-204 on page 267.
Figure 5‑204 The scan of entire tube length after AUTO MIX
9. Press the FREEZE key ( ), followed by MIX ANG (mix angle, E key), and then
rotate the knob until the larger thru-wall signal is vertical (see Figure 5-205 on
page 268).
The direct function keys on the left side of the instrument screen do not function
while the MIX menu is being used.
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