Dakota Ultrasonics DFX-7 Specifications

D A K O T A U L T R A S O N I C S

The Best of Both Worlds...

The Best of Both Worlds...

The DFX-7 Series

The DFX-7 Series

Flaw Detector & Thickness Gauge

Flaw Detector & Thickness Gauge

Flaw Detector:

Sizing Toolkits: DAC, AWS, TCG, DGS.

Exceptional visibility in sunlight (AMOLED)

color VGA display (320x240 pixels).

P.R.F. - 8 to 333 Hz, adjustable.

Screen Refresh Rate: Adjustable 60 & 120 Hz.

Detection: Z-Cross, Flank & Peak.

Thickness Gauge:

Automatic: probe zero, probe recognition, and

Temperature compensation.

Measurement: Variety of modes to address a

number of applications.

Large data storage with multiple formats: Alpha

numeric grid and sequential w/auto identier.

Up to 12 hours of battery life using 3 AA cells.

Windows PC interface software included.

S O U N D S O L U T I O N S

DFX-7 SERIES SPECIFICATIONS

General

Size: 2.5W x 6.5H x 1.24D in (63.5 x 165 x

31.5mm).

Weight: 14 ounces (.397kgs), with batteries.

Case: Extruded aluminum body with nickel

plated aluminum end caps (gasket sealed).

Display: 1/4 VGA AMOLED color display (320 x
240 pixels). Viewable area 1.7 x 2.27 in (43.2 x

57.6 mm). 16 color pallete, multiple color
options, and variable brightness.

Screen Refresh Rate: Selectable 60 or 120Hz.

Display Views: Flaw Detector: Full wave, +/-

Rectied, or RF. Thickness Gauge: Digits, +/­Rectied, RF, or B-Scan.

Timing: Precision 25MHz TCXO with single shot
100 MHz 8 bit ultra low power digitizer.

Measurement Gates: Two independent gates
(Flaw), and three gates (thickness). Start & width
adjustable over full range. Amplitude 5-95%, 1%
steps. Positive or negative triggering for each
gate with audible and visual alarms.

Operating Temperature: 14 to 140F (-10C to
60C).

Environmental: Meets IP65 requirements.

Calibration

Automatic Calibration: Longitudinal (straight),

or Shear (angle).

Probe Types: Single Contact, Dual, Delay, and
Angle .

Units: English (in), Metric (mm), or Time (μs).

Velocity: 0.0100 to .6300 in/μs (256–16,000 m/s).

Test Range: 0 to 0.280in (7.11mm) minimum, to

1200in (30,480mm) maximum at steel velocity.
Continuously variable.

Zero Oset (Probe Zero): 0–999.999 μs.

Material Velocity Table: Contains longitudinal

and shear velocities for a variety of material
types.

Pulser

Pulser Type: Two adjustable square wave pulsers

and receivers.

P.R.F.: 8 to 333Hz in selectable steps (8, 16, 32,
66, 125, 250, 333Hz).

Pulser Voltage: 200 volt peak amplitude, rise/fall
time < 10ns into 50ohm.

Pulse Width: 40 to 400 ns. Selectable step
options 40, 80 & 400 ns (labeled spike, thin &
wide).

Receiver

Gain: 0 to 110dB with 0.2dB resolution. Manual

and AGC control.

Damping: 50, 75, 100, 300, 600, & 1500 ohms.

Frequency Bands: DFX-7 & 7+: Broadband 1.8 -

19 MHz (-3dB). DFX-7+: Three narrow bands at
2MHz, 5MHz, 10MHz.

Horizontal Linearity: +/- 0.4% FSW.

Vertical Linearity: +/- 1% FSH.

Amplier Linearity: +/- 1 dB.

Amplitude Measurement: 0 to 100% FSH, with

1% resolution.

Delay: 0 - 999in (25,375mm) at steel velocity.

Flaw Detector Features

TRIG: Trigonometric display of beam path,

depth, surface distance, and curved surface
correction. Used with angle beam transducers.

DAC: Up to 8 points may be entered and used to
digitally draw a DAC curve. Reference -2, -6, -10,
(-6/-12), (-6/-14), (-2/-6/-10) dB. Amplitude
displayed in %DAC, dB, or %FSH.

AWS : Automatic defect sizing in accordance with
AWS D1.1 structural welding code.

AVG/DGS: Automatic defect sizing using probe
data. Stores up to 64 custom setups.

TCG: Time corrected gain. 50 dB dynamic range,
20 dB per microsecond, up to 8 points for curve
denition.

Measurement Mode: Pulse-Echo (P-E) measures
from 0.025 in to 100 ft. (0.63mm to 3048 cm).

Auto-Cal: Provides automatic calibration with
two reference points.

Detection Modes: Zero Crossing, Flank and
Peak.

Display Freeze: Hold current waveform on
screen.

Peak Memory: Captures peak signal amplitude.

Thickness Gauge Features

Measurement Modes (Dual Element):

Pulse-Echo Mode (P-E) - (Pit & Flaw Detection)

measures from 0.025 in to 100 ft. (0.63mm to
3048 cm).

Pulse-Echo Coating Mode (PECT) - (Material,
Coating, Pit & Flaw Detection): Material: 0.025 in
to 100 ft. (0.63mm to 3048 cm). Coating: 0.001
to 0.100 inches (0.01 to 2.54 millimeters).

Pulse-Echo Temp Comp Mode (PETP) - (Pit &
Flaw Detection) Auto temperature compensa­tion -measures from 0.025 in to 100 ft. (0.63 mm
to 3048 cm).

Thickness Gauge (Features) - (Con’t)

Echo-Echo Mode (E-E) - (Thru Paint & Coatings)

measures from 0.050 to 4.0 inches (1.27 to 102
millimeters). Will vary based on coating.

Echo-Echo Verify (E-EV) - (Thru Paint & Coatings)
measures from 0.050 to 1.0 inches (1.27 to 25.4
millimeters). Will vary based on coating.

Coating Only Mode (CT) - (Coating Thickness)
Measures from 0.0005 to 0.100 inches (0.0127 to

2.54 millimeters). Range will vary +/- depending
on the coating.

One and two point calibration option for
material & coating, or selection of basic material
types.

Auto probe zero, recognition and temperature
compensation.

High speed scan up to 50 readings per second.

Audible alarm with hi/lo limits.

Built-in dierential mode for QC inspections.

64 custom setup congurations.

Memory

Log Formats: Grid (Alpha Numeric), or

Sequential (Auto Identier).

Graphics On: 8,000 readings, A/B Scan image, &
all gauge settings for every reading.

Graphics O: 210,000 readings (coating,
material, min & max. (Thickness gauge only).

Custom Setups: 64 user congurations.

Power Source

Battery: Three 1.5V alkaline, 1.2V AA Nicad cells,

1.2V AA NI-MH, or other other equivalent power
source. Battery life (continuous use): Alkaline (12
hrs), Nicad (5hrs), and NI-MH (12hrs), with
default settings.

Connections

Output: RS232 serial interface. PC software &

USB converter cable included.

Transducer Connectors: Two LEMO 00
connectors.

Certication

Thickness Gauge: Factory calibration traceable

to NIST & MIL-STD-45662A.

Flaw Detector: EN12668-1 compliant.

Warranty

2 year limited

Distributed by:

M A D E I N T H E U S A

DAKOTA ULTRASONICS

1500 Green Hills Road, #107
Scotts Valley, CA 95066

Ph: [phone]
Fax [phone]
Website: www.dakotaultrasonics.com
Email: [e-mail]