Checkline DFX-7 - Manual (Page 89)

DFX-7 Ultrasonic Flaw Detector
85
Z-Cross Flank Peak
Refer to the diagrams above. The current polarity is positive, as shown by the
position of the gate above the baseline:
Z-Cross: The detection occurs as the first positive half cycle crosses the baseline
and goes negative.
Flank: The detection occurs as the first half cycle left edge rises and breaks the
threshold.
Peak: The detection occurs at the highest peak in the gate.
The procedure to select the DETECT MODE is outlined below:
Selecting the Detect
5) 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 TUNE menu is highlighted and displaying the submenu items.
6) Use the UP and DOWN arrow keys to scroll through the sub menu items
until DETECT MODE is highlighted.