Dakota Ultrasonics DFX-7 plus MANUAL1 - Manual (Page 111)

DFX-7 Ultrasonic Flaw Detector
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Alternatively, press the LEFT and RIGHT arrow keys multiple times
using the left button wheel.
2) Use the UP and DOWN arrow keys multiple times on the left button
wheel to scroll through the sub menu items until KEY CLICK is highlighted.
3) Use the LEFT and RIGHT arrow keys multiple times using the left
button wheel to scroll the KEY CLICK options.
4) Once the desired KEY CLICK is displayed, press the MEAS key to return to
the measurement screen.
11.20 Peak Hold
The DFX-7 includes a peak hold feature that draws and saves the maximum
waveform amplitude on the screen. This allows an inspector to move the transducer
in all directions, in an effort to “peak up” on a signal, and locate the maximum
amplitude. The following procure outlines the steps to activate and use the PEAK
hold feature:
Activating Peak
1) Press the MULTI MODE key located in the bottom left corner of the keypad
to display the mode options.