DMTA-10040-01EN, Rev. E, February 2018
Chapter 5
260
To calibrate frequency 1
1.
Loosen the set screw on the support ring, slide the support ring over the four
shallow pits near the tube end, and then tighten the set screw.
2.
Place the probe in a defect-free area of the calibration standard near the thru-wall
flaw, and then press the NULL foot switch.
3.
Slowly scan the tube until the thru-wall flaw is displayed, and then press the
FREEZE key (
) [see Figure 5-194 on page 260].
Figure 5
‑
194 The scan of the thru
‑
wall hole
4.
Press the ANGLE key (
), and then rotate the signal until the thru-wall
signal is vertical on the instrument screen (see Figure 5-195 on page 261).
Содержание nortec 600
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