Dakota Ultrasonics MVX - Manual (Page 45)

MVX High Performance Thickness Gauge
Note: Be sure that a probe zero has been done prior to performing this
calibration procedure.
1) Using a set of calipers, physically measure two known thickness locations
on the sample of material. Note: The two locations should represent the
desired thickness range being measured. If the range is from .250” - 1.000”,
then the two known locations should represent this range, or be slightly
outside or inside of this range. A typical example would be to find two
locations at .236” and the other at 1.047”. These thickness points will satisfy
the required thickness range noted above.
2) Apply a drop of couplant on the transducer. Place the transducer in steady
contact on thickest known location first. Be sure that the reading is stable
and the repeatability indicator, located in the top left corner of the display, is
fully lit and stable. Press the MENU key once to activate the menu items tab.
Press the MENU key multiple times to tab right, and the ESC key multiple
times to tab left, until the CAL menu is highlighted and displaying the
submenu items.