Dakota Ultrasonics DFX-7 plus MANUAL1 - Manual (Page 95)

DFX-7 Ultrasonic Flaw Detector
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to perform a ‘crude’ manual screen calibration. The procedure for adjusting the zero
is listed below:
Adjusting Zero
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 ZERO is highlighted.
3) Press the LEFT and RIGHT arrow keys to scroll the value. When the
correct zero value is being displayed, proceed to step 8.
4) Alternatively, 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 zero value is correctly displayed.