DFX-7
Ultrasonic Flaw Detector
55
ESC
key multiple times to tab left until the
CAL
menu is highlighted and
displaying the submenu items.
3) Use the
UP
and
DOWN
arrow keys to scroll through the sub menu items
until
MATL 1PT
is highlighted.
4) Press the
ENTER
key to display the
Digits Edit Box
.
5) Press the
UP
and
DOWN
arrow keys to scroll the highlighted value.
6) Press the
LEFT
and
RIGHT
arrow keys to scroll the digit locations.
7) Repeat steps
5 & 6
until the known thickness value is correctly displayed.
8) Press the
OK
key to calculate the velocity and return to the menu screen, or
ESC
to cancel the one point calibration.
9) Finally, press the
MEAS
key to return to the measurement screen and begin
taking readings.
Note: CHECK YOUR CALIBRATION!
Place the transducer back on the
calibration point. The thickness reading should now match the known
thickness. If the thickness is not correct, repeat the steps above.
At some point there may become a requirement for improved accuracy over a smaller
measurement range. In this case, a two point calibration would be most suited for
