Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 114)

Dakota Ultrasonics
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1) 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.
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 DETECT MODE is
highlighted.
3) Use the LEFT and RIGHT arrow keys multiple times using the left
button wheel to scroll the DETECT options.
4) Once the DETECT is displayed, press the MEAS key to return to the
measurement screen.
11.18 Polarity
The DFX-8 has a number of features and views that offer selectable polarity. The
important thing to note is the polarity view is entirely different than the polarity
selection of a gate. If a polarity view of +RECT is selected, only the positive portion
of the waveform will be shown on the screen. If a positive polarity is then selected for
GT1, not only will the gate be displayed on the screen, it will only detect on the
positive going cycles of the waveform. Polarity is selectable according to the VIEW,
GT1, GT2, and DAC. Again, view corresponds only to what portion of the waveform
is displayed, positive or negative, and the other three options are primarily associated
with where the detect occurs. Finally, if the view is set to RF, the entire waveform
cycle will be displayed, both positive and negative. Refer to the diagram below: