Olympus nortec 600 - Figure 5-177 the Tube Scan Result after Moving the Support Ring (MIX); Figure 5-178 the Scan Result with the Support Ring over the Flaw in FREQ 1

DMTA-10040-01EN, Rev. E, February 2018
Using the Instrument 247
Figure 5‑177 The tube scan result after moving the support ring (MIX)
4. Place the probe in a defect-free area (see Figure 5-176 on page 246).
5. Press the DISP menu key ( ), followed by CHANNEL (B key), and then rotate
the knob until FREQ 1 is displayed.
6. Press the NULL foot switch, and scan the tube.
It should be easy to spot the flaw under the support ring (see Figure 5-178 on
page 247).
Figure 5‑178 The scan result with the support ring over the flaw in FREQ 1