Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 73)

DFX-8 Series Ultrasonic Flaw Detectors
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RIGHT arrow keys on the right button wheel to toggle and select which
curve or gate to use as the alarm trigger. The options displayed will vary
according to which CURVE option has been selected above: DAC, -2, -4, -6,
-10, (-6/-12), or (-6/-14) curve options. The Trigger option can be changed
at any time after the DAC curve has been created.
Selecting the Fit
1) Press the UP and DOWN arrow keys multiple times on the left button
wheel until FIT is highlighted, followed by pressing the LEFT and RIGHT
arrow keys on the right button wheel to select SPLINE or LINEAR.
2) Proceed to the next section – Drawing the DAC.
Drawing the DAC
1) With all the parameters set in the previous section, press the MEAS key to
return to the main measurement screen.
Note: The user should now see a highlighted cursor displayed in the waveform
area, starting at the left most side of the display.