DMTA-10040-01EN, Rev. E, February 2018
Chapter 5254
Always use combined horizontal and vertical gain (H/V GAIN).
Figure 5‑186 Adjusting the gain
6. Place the probe in a defect-free area of the calibration standard near the 10 % ID
flaw, and then press the NULL foot switch.
7. Scan the 10 % ID and 20 % OD flaws.
8. Press and hold the REF SAVE ( ) key until you hear a beep, and then press the
ERASE key ( ) or ERASE foot switch.
This provides a reference image in a complimentary color on the screen for
reference purposes (see Figure 5-187 on page 255).
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