DMTA-10040-01EN, Rev. E, February 2018
Chapter 5282
2. Select CONTINUE (press the A key) to open the application selection menu, and
then use the knob to select NFT Pitting, and press to accept (see Figure 5-225
on page 282).
Figure 5‑225 The NFT Pitting application
To calibrate the signals
1. Place the probe in a defect-free area of the calibration standard near the thru-wall
hole, and then press the NULL foot switch.
2. Slowly scan the thru-wall hole, pressing the ERASE foot switch as required to
clear the screen. When the hole signal is visible on the NORTEC 600 screen, press
the FREEZE key ( ).
When scanning over the hole in a pulling motion, the probe’s lower signal lobe should
appear first on the screen (see Figure 5-226 on page 283 and Figure 5-227 on page 283).
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