Checkline DFX-7 - Manual (Page 86)

Dakota Ultrasonics
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10.9 Detect Mark
Another look and feel option of the DFX-7 is the DETECT MARK feature. The detect
mark give the user the option to select: none, line, dots, or box. Depending on the
select made, an indication will be displayed on the waveform, showing where the
detection is occurring. It should be noted that the “box” option will only be visible in
RF view. The following screenshots illustrate the above selection options:
None Line
Dots Box
10.10 Polarity
The DFX-7 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: