Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 15)

DFX-8 Series Ultrasonic Flaw Detectors
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3.5 TUNE – Menu
MEASURE MODE: This menu item is only included in our DFX-8+. Toggles a
variety of measurement modes for different application requirements: Currently pulse
echo (P-E) and Immersion (IM) for water path correction. Refer to page 104 for
further info.
FILTERS: The DFX-8 is a wide band flaw detector with a frequency range of 1.8 to
19 MHz (-3dB). The DFX-8 is additionally equipped with selectable narrow band
filters at; 2, 5 & 10 MHz. The DFX-8+ includes two additional filters at 0.5 kHz and
15 MHz. Refer to page 103 for further info.
GAIN: The DFX-8 has a 0-110dB gain range with 2dB resolution. This feature is
used to increase/decrease the strength or amplitude of the signal. Similar to turning
the volume up or down on a stereo receiver. Refer to page 31 for further info.
GAIN STEP: This feature allows the user to control the increment step size of the
gain. Once the step size is set, each time the UP or DOWN button is pressed on the
right button wheel, the gain is incremented or decremented by the gain step setting.
Refer to page 31 for further info.
DETECT MODE: The DFX-8 is equipped with optional detection modes; PEAK,
FLANK, or Z-CROSS (zero crossing). This option allows the user to decide where
the detection is acquired on the waveform echo. Refer to page 109 for further info.
3.6 GT1 – Menu
ALARM1: Toggles the alarm function of gate 1; on, off, audible. The audible feature
sounds a beeper when the waveform breaks the threshold level either above or
below depending on the current DETECT setting. Refer to page 33 for further info.
DETECT: Enables the user to set the alarm detection to occur either above or below
the gates threshold level. Refer to page 33 for further info.