Dakota NDT FX70 Flaw Detectors (Formerly DFX-7)

Combined Flaw Detection and Thickness Gauging in One Compact Unit

Flaw Detection and Thickness Gauging in One Unit

The FX70 Series have combined flaw detection and thickness gauging in one easy-to-use-unit. The flaw detector has many sizing toolkits to choose from including DAC, AWS, TCG and DGS. The VGA AMOLED color display has exceptional visibility in sunlight with 320 x 240 pixels and multiple color options and variable brightness. The Thickness Gauge has automatic probe zero, probe recognition and temperature compensation. It has a variety of measuring modes to address a number of applications and large data storage with multiple formats. With up to 12 hours of battery life this unit is the best of both worlds.

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 or dB.
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 definition.

Measurement Mode: Pulse-Echo (P-E) range 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: For echodynamic pattern determination.
Show Legs: Displays legs/skips in waveform area.

Thickness Gauge Features & Measurement Modes

Features

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 differential mode for QC inspections
Linear time dependent gain (TDG) with adjustable slope (dB per microsecond)

Measurement Modes (Dual & Single Element

Pulse-Echo Mode (P-E) – (Pit & Flaw Detection) range 0.025 to 96 in (0.63 mm to 244 cm). Single Contact – 0.040 in to 100 ft. (1 mm to 3048 cm).
Pulse-Echo Coating Mode (PECT) – (Material, Coating, Pit & Flaw Detection) Material: 0.025 in to 96 in (0.63 mm to 244 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 – range from 0.025 to 96 in (0.63 mm to 244 cm).
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-E) – (Thru Paint & Coatings) range 0.050 to 4.0 inches (1.27 to 102 mm). Single Delay Line – 0.007 to 1.00 in (178 to 254 mm). Single Contact – 0.040 in to 10ft. (1 mm to 305 cm). Will vary based on coating.
Echo-Echo Verify (E-EV) – (Thru Paint & Coatings) range 0.050 to 1.0 inches (1.27 to 25.4 millimeters). Will vary based on coating.
Coating Only Mode (CT) – (Coating Thickness) range 0.0005 to 0.100 inches (0.0127 to 2.54 millimeters). Range will vary +/- depending on the coating.

Technical Specifications

FX70 Series Specifications

General

Automatic Calibration: Longitudinal (straight) or Shear (angle)

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

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

Test Range: 0.007 in (.178mm) to 1200 in (30,480mm) maximum at steel velocity. Continuously variable.

Zero Offset (Probe Zero): 0–999.999 µs.

Material Velocity Table: Contains longitudinal and shear velocities for a variety of material types.

Units: Imperial & Metric

Pulser

Pulser Type: Two adjustable square wave pulsers and receivers.

P.R.F.: 8 to 2000Hz in selectable steps (8, 16, 32, 66, 125, 250, 333, 1000, 2000Hz).

Pulser Voltage: 100-200 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.

Amplifier Linearity: +/- 1 dB

Amplitude Measurement: 0 to 100% FSH, with 1% resolution.

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

Memory

Log Formats: Grid (Alpha Numeric), or Sequential (Auto Identifier)

Capacity: 4 Gb internal SD card.

Screen Capture: Bitmap graphic capture for quick documentation (.tif ).

Custom Setups: 64 user configurations.

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.

Line Power: USB-C to PC or power outlet.

Connections

Output: Direct USB-C 1.1 PC connectivity

Transducer Connectors: Two LEMO 00 connectors

Certification

Thickness Gauge: Factory calibration traceable to NIST & MIL-STD-45662A.

Flaw Detector: EN12668-1 compliant

Warranty

2 year limited

Kit Includes

FX70 Series Kit Includes

Unit
Operating Manuals
DakView PC Software & USB Cable
Carrying Case
4 oz. Couplant
Certificate of Calibration

Probe Selection

Dakota Thickness & Flaw Detector Probes Selection Guide for FX70 & FX80 Gauges

Dakota Thickness Probe Selection Guide for CMX Gauges

Protective Case Options

PN: UT-DU-F-149-0001

PN: UT-DU-A-149-6002

Product Literature

Description	Part #	Price
Dakota NDT FX70-DL Kit includes: Unit, Operating Manuals, Dakview3 PC Software & USB Cable, Hard Carrying Case, 4 oz Couplant and Calibration Certificate (formerly DFX-7)	UT-DU-Z-220-0005	$3,950.00
Dakota NDT FX71-DL Kit Includes: Unit, Operating Manuals, Dakview3 PC Software & USB Cable, Hard Carrying Case, 4 oz. Couplant and Calibration Certificate (formerly DFX-7+)	UT-DU-Z-221-0005	$4,150.00
Dakota NDT Nylon protective instrument case with neck strap (for A-Scan/B-Scan Instruments)	UT-DU-F-149-0001	$90.00
Dakota NDT Injection molded rubber protective instrument case with neck & hand straps and a kickstand for A-Scan/B-Scan instruments	UT-DU-A-149-6002	$115.00