Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 75)

DFX-8 Series Ultrasonic Flaw Detectors
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6) Press the MENU key once to activate the menu items tab. Press the MENU
key multiple times to tab right, and the ESC key multiple times to tab left,
until the DAC menu is highlighted and displaying the submenu items.
Alternatively, press the LEFT and RIGHT arrow keys multiple times
using the left button wheel.
7) Press the UP and DOWN arrow keys multiple times on the left button
wheel until DRAW is highlighted, followed by pressing the LEFT and
RIGHT arrow keys on the right button wheel until OFF is displayed. The
DAC curves are now set and ready to be used for inspection.