Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 91)

DFX-8 Series Ultrasonic Flaw Detectors
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Note: The DGS curve uses 16 points to plot the curve.
4) 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 DGS menu is highlighted and displaying the submenu items.
Alternatively, press the LEFT and RIGHT arrow keys multiple times
using the left button wheel.
5) Press the UP and DOWN arrow keys multiple times on the left button
wheel until REFERENCE GAIN is highlighted, followed by pressing the
LEFT and RIGHT arrow keys on the right button wheel to toggle OFF. The
DGS curve is now set and ready to be used for inspection.