Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 111)

DFX-8 Series Ultrasonic Flaw Detectors
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11.15 Filters (Wide & Narrow Bands)
The DFX-8 includes a wide band filter with a range of 1.8MHz to 19MHz, as well as
narrow band filters at 1MHz, 2MHz, 5MHz and 10MHz. The DFX-8+ has two
additional narrow band filter at 0.5MHz and 15MHz. The wide band option is
responsive to all signals within the given frequency range. However, narrow band
filters eliminate signals outside of the target filter frequency, and focus on the output
of the transducer at the specified frequency. The procedure to change the FILTER is
outlined below:
For quick access and editing, refer to navigating the Hot Menus page 22.
Selecting the Filter
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.
Alternatively, press the LEFT and RIGHT arrow keys multiple times
using the left button wheel.
2) Use the UP and DOWN arrow keys multiple times on the left button
wheel to scroll through the sub menu items until FILTER is highlighted.
3) Use the LEFT and RIGHT arrow keys on the right button wheel to scroll
the FILTER options.
4) Once the desired FILTER is displayed, press the MEAS key to return to the
measurement screen.