Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 13)

DFX-8 Series Ultrasonic Flaw Detectors
9
3.2 Probe – Menu
TYPE: Enables the user to select the type of transducer being used, either Single or
Dual.
PULSE: The DFX-8 has an adjustable pulse width for both high penetration and
resolution applications. The pulse width refers to the duration of time the pulser is
on. The options are Spike, Thin, and Wide. Refer to page 88 for a further
explanation. The DFX-8+ has a special tone burst style pulser with options Spike,
Thin, Wide, HV Spike, HV Thin, HV Wide, TB 10MHz, TB 5MHz, TB 2MHz, and TB
1MHz. Refer to page 88 for a further explanation.
MAX PRF: This feature controls the pulse repetition frequency of the DFX-8. The
maximum frequency is 333 Hz. However, the DFX-8 will automatically adjust the
PRF according to what the current delay and range settings have been adjusted to.
Larger the range, the slower the repetition frequency will automatically be set for.
DAMPING: The ability to control the amplifiers output impedance to match the
impedance of the transducer, and optimize overall transducer performance.
Adjustable at: 50, 100, 300, 600, 1500 ohms. Refer to page 90 for further info.
PULSER VOLT: The DFX-8 has an adjustable pulser voltage: 100, 150, and 200
volts. Refer to page 91 for a further explanation. The DFX-8+ has a special tone
burst pulser: 100, 150, 200, 300, 400 volts. Refer to page 91 for a further
explanation.
3.3 CAL – Menu
MAT: Select the material velocity from a chart of basic material types when a known
sample thickness, or material velocity cannot be obtained.
MATL 1PT: Performs a single point calibration. This calibration option is used in
conjunction with the MATL 2PT option for the calibration process. Refer to page 39
for further info.