Checkline DFX-7 - Manual (Page 90)

Dakota Ultrasonics
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7) Use the LEFT and RIGHT arrow keys to scroll the DETECT options.
8) Once the DETECT is displayed, press the MEAS key to return to the
measurement screen.
10.12 Pulse Width
The DFX-7 has a square wave pulser with adjustable pulse width option. Pulse
width, refers to the duration of time the pulser is left on. This time results in
increased energy sent into the test material. There are three width options (SPIKE,
THIN, and WIDE). The SPIKE setting may be desirable for high resolution and
general applications to decrease the overall noise. When additional energy is
needed, more penetration, the THIN and WIDE options may be necessary. The
standard setting is THIN. The procedure to change the pulse width is outlined below:
Selecting the Pulse Width
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 TUNE menu is highlighted and displaying the submenu items.
2) Use the UP and DOWN arrow keys to scroll through the sub menu items
until PULSE is highlighted.
3) Use the LEFT and RIGHT arrow keys to scroll the Pulse options.