Dakota Ultrasonics DFX-8 plus MANUAL2 - Manual (Page 8)

Dakota Ultrasonics
4
F. Scan Bar – Another view of material thickness in a deflection style horizontal
bar. This is a visual tool that would enable the user the ability to see thickness
changes during high speed scans from flaws and pits.
G. Units – The current measurement units being used (English, Metric).
H. Hot Menu items – We call this menu section our “hot menu”, as these items
are the most commonly adjusted features, requiring quick access from the
user. They can be displayed and scrolled by pressing the MEAS key at any
time. The MEAS key advances forward and the ESC key backwards to the
next hot menu item. Alternatively, the UP,DOWN, LEFT and RIGHT arrow
keys on the left button wheel can be used to either scroll through the sub
menu items, or advance to the next HOT MENU items list. There are 8 HOT
MENU lists, that contain the most commonly adjusted items from the tabbed
menus, and in the same order as the tabbed menus. Note: Some of the lists
contain multiple tabbed menus in order to condense the number of HOT
MENU lists.
I. B-Scan Display – Cross section view of the material. Provides the user with
graphical view of the opposite/blind surface (i.e. inside pipe wall surface), to
give the user some idea of the condition, or integrity of the material being
tested.
J. Gain & Step Size – The gain and increment step size can be continuously
used and adjusted at any time using the UP and DOWN arrow keys on the
right button wheel to scroll the value, and the GAIN key to activate the Digit
Edit screen to adjust the step size.
K. Rectified A-Scan Display – The actual sound wave reflection that is returned
from the detection of the opposite surface of the material being measured. In
this view, only half of the sine wave is being displayed (positive or negative).
This view is commonly referred and used as a “flaw detection” mode.
L. Reference Note – When a full screen sound wave is being displayed, the
material thickness value is displayed here.
M. Reference Note – In a split screen mode the material velocity is displayed
here.
N. Split Screen Display – This display option ‘splits’ the screen in half,
displaying the waveform/B-Scan and the thickness values concurrently.