Dakota Ultrasonics MINI--MAX - Manual (Page 160)

Dakota Ultrasonics
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Toggle Polarity (+/-)
Note: Before toggling the Polarity, the MINI-MAX should be set to the RF
display view option. The RF view will give the user the best opportunity to
correctly view the positive and negative cycles of the waveform. Please
refer section 12.2 for information on selecting the Display Views.
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.
2) Use the UP and DOWN arrow keys to scroll through the sub menu items
until POLARITY is highlighted.
3) Use the LEFT and RIGHT arrow keys to toggle the POLARITY negative
or positive.
4) Press the MEAS key to return to the measurement screen and begin
taking readings.
13.4 Rectified Waveform (Filled/unfilled)
The MINI-MAX has yet another feature primarily included for user personal
viewing preference. When the MINI-MAX is in the Rectified Display View, the
waveform can be completely filled in black, or simply outlined. The procedures to
toggle this feature, are outlined below: