Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 48)

Dakota Ultrasonics
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2) Press the ENTER key to display the Digits Edit Box.
3) Press the UP and DOWN arrow keys multiple times on the left button
wheel to scroll the highlighted value.
4) Press the LEFT and RIGHT arrow keys multiple times using the left
button wheel to scroll the digit locations.
5) Repeat steps 3 & 4 until the desired THRESHOLD1 value is displayed.
Note: In our example, a value of 20% has been selected. However, the user
should set a value that will be close enough to the baseline to avoid a “Peak
Jump”, or missing the first cycle.
6) Press the OK key to set the value and return to the GT1 menu.
Setting Polarity
1) Use the UP and DOWN arrow keys multiple times on the left button
wheel to scroll through the sub menu items until POLARITY1 is highlighted.
2) Press the LEFT and RIGHT arrow keys multiple times using the left
button wheel to toggle the polarity POSITIVE.
3) Press the MEAS key to return to the measurement screen and get started
with the two point calibration.
5.2 Straight Beam Calibration
Now that the DFX-8 is setup with a valid range and a gate enabled, we’re ready to
perform a two point calibration using a single element contact style transducer, as
follows:
For quick access and editing, refer to navigating the Hot Menus page 22. In the
screenshot below, notice the Hot Menu representing the CAL menu is being
displayed on the right side of the display.