Checkline DFX-7 - Manual (Page 78)

Dakota Ultrasonics
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1) 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.
2) Use the UP and DOWN arrow keys to scroll through the sub menu items
until MAT is highlighted.
3) Press the ENTER key to display the list of material types.
4) Press the UP and DOWN arrow keys to scroll through the material list until
the appropriate material is highlighted.
5) Press the ENTER key to overwrite the material type and display the menu
items with the new material type selected.