Dakota Ultrasonics DFX-7 plus MANUAL1 User Manual
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Dakota Ultrasonics
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everything below the center line. The baseline is found at position (A), and
considered zero dB. If +RECT was selected as the view, only the positive portion of
the waveform would be displayed. Equally, if the gate polarity was set to positive, as
in the diagram at (C), it would also appear on the display. However, if it was set to
negative, would not appear on the display. In the example above, the gate is set to
positive and will detect on the positive going waveform cycles shown in the box (B).
Toggle Polarity (+/-)
Note: The screenshots above show where all the possible locations for polarity
selection are found in the DFX-7. For more information on the above, refer to
the sections on VIEW, DAC, GT1, & GT2.
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,