Dakota Ultrasonics PVX - Manual (Page 8)

Dakota Ultrasonics
4
2) Use the UP and DOWN arrow keys to scroll through the sub menu items
until VELOCITY is highlighted.
3) Press the ENTER key to display the Digits Edit Box.
4) Press the UP and DOWN arrow keys to scroll the highlighted value.
5) Press the LEFT and RIGHT arrow keys to scroll the digit locations.
6) Repeat steps 4 & 5 until the velocity number is correctly displayed.
7) Press the OK key to set the velocity and return to the menu screen, or ESC
to cancel entering the velocity.
8) Finally, press the MEAS key to return to the measurement screen and begin
taking readings.
Known Thickness
Sometimes the sound velocity of a material is not known. In this case a sample with
a kno wn thickness can be used to determine the sound velocity. It would be very
handy to carry a set of mechanical calipers to use in conjunction with the PVX for
calibration in the field:
Using a Known Thickness