Dakota Ultrasonics CMX DL - Manual (Page 115)

CMX
DL
High Performance Material & Coating Thickness Gauge
111
2) Use the UP and DOWN arrow keys to scroll through the sub menu items
until CLOSE is highlighted.
3) Press the ENTER key to close the active file. Note: Following the key
press, the CLOSE text will be grayed out indicating the file has been close
and is no longer active.