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The Dakota FX71-DL is both a Ultrasonic flaw detector and an ultrasonic material and coating thickness gauge. The FX71-DL Flaw detectors are designed to detect, size, position, and differentiate between flaw types in various materials and welded joints. Fast & High performance, with a 200 volt square wave pulser that can be adjusted for specific applications and transducers offers greater penetration for difficult material types, or increased resolution on noisy materials.The FX71-DL is equipped with an adjustable pulse repetition rate of 8 to 333Hz to control how fast the pulser is firing. Therefore, when scanning at higher speeds, a higher repetition rate will make the alarm trigger more responsive. In addition, the FX71-DL serves the function of a thickness gauge are specifically setup to very accurately measure thickness, locate pits, flaws and blind surface corrosion and measure coating thickness.
FX71-DL Flaw Detector Used for a wide variety of ultrasonic testing tasks such as flaw detection, thickness gauging, weld and bond testing, and more critical safety-related and quality-related applications involving structural welds, steel beams, forgings, pipelines and tanks, aircraft engines and frames, automobile frames, railroad rails, power turbines and other heavy machinery.
Flaw Detector:
Thickness Gauge:
Other:
| General | Receiver | |
| Size: 2.5W x 6.5H x 1.24D in (63.5 x 165 x 1.5mm). | Gain: 0 to 110dB with 0.2dB resolution. Manual and AGC control. |
Echo-Echo Mode (E-E) - (Thru Paint & Coatings) range 0.050 to 4.0 inches (1.27 to 102 millimeters). |
| Weight: 14 ounces (.397kgs), with batteries. | Damping: 50, 75, 100, 300, 600, & 1500 ohms. |
Single Delay Line - 0.007 to 1.00 in (.178 to 25.4 mm). Single Contact - 0.040 in to 10 ft. (1 mm to 305 cm). Will vary based on coating. |
| Case: Extruded aluminum body with nickel plated aluminum end caps (gasket sealed). |
Frequency Bands: FX71-DL: Broadband 1.8 - | 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. |
| Display: 1/4 VGA AMOLED color display (320 x240 pixels). Viewable area 1.7 x 2.27 in (43.2 x 57.6 mm). 16 color pallete, multiple color options, and variable brightness. |
19 MHz (-3dB). FX71-DL+: Three narrow bands at 2MHz, 5MHz, 10MHz. |
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. 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). |
| Screen Refresh Rate: 60Hz. | Horizontal Linearity: +/- 0.4% FSW. | Memory |
| Display Views: Flaw Detector: Full wave, +/- Recti7ed, or RF. Thickness Gauge: Digits, +/- Recti- | Vertical Linearity: +/- 1% FSH. | Log Formats: Grid (Alpha Numeric), or SequenMemory tial (Auto Identi7er). |
| 7ed, RF, or B-Scan. | Ampli4er Linearity: +/- 1 dB. | Capacity: 4 Gb internal SD card. |
| Resolution (selectable): +/- 0.001 in (0.01 mm )or +/- 0.0001 in (0.001mm). |
Amplitude Measurement: 0 to 100% FSH, with 1% resolution. |
Screen Capture: Bitmap graphic capture for quick documentation (.tif ). |
| Timing: Precision TCXO timing with single shot | Delay: 0 - 999in (25,375mm) at steel velocity. | Custom Setups: 64 user con7gurations. |
| Resolution (selectable): +/- 0.001 in (0.01 mm)or +/- 0.0001 in (0.001mm). | Flaw Detector Features | Power Source |
| Timing: Precision TCXO timing with single shot 100 MHz 8 bit ultra low power digitizer. | TRIG: Trigonometric display of beam path, depth, surface distance, and curved surface correction. Used with angle beam transducers. |
Battery: Three 1.5V alkaline, 1.2V AA Nicad cells, 1.2V AA NI-MH, or other other equivalent power source. |
| 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. |
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. |
Battery life (continuous use): Alkaline (12 hrs), Nicad (5hrs), and NI-MH (12hrs), with default settings. |
| Operating Temperature: 14 to 140F (-10C to 60C). | AWS: Automatic defect sizing in accordance with AWS D1.1 structural welding code |
Line Power: USB-C to PC or power outlet. |
| Environmental: Meets IP65 requirements. | AVG/DGS: Automatic defect sizing using probe data. Stores up to 64 custom setups |
connections. |
| Calibration: | TCG: Time corrected gain. 50 dB dynamic range, 20 dB per microsecond, up to 8 points for curve de7nition. |
Output: Direct USB-C 1.1 PC connectivity. |
| Automatic Calibration: Longitudinal (straight), Calibration or Shear (angle). |
Thickness Gauge Features | Transducer Connectors: Two LEMO 00 |
| Probe Types: Single Contact, Dual, Delay, and Angle . |
Measurement Mode: Pulse-Echo (P-E) range 0.025 in to 100 ft. (0.63mm to 3048 cm). |
Certification |
| Units: English (in), Metric (mm). Velocity: 0.0100 to .6300 in/µs (256–16,000 m/s). |
Auto-Cal: Provides automatic calibration with two reference points. | Thickness Gauge: Factory calibration traceable To LEMO 00 Certi4cation to NIST & MIL-STD-45662A. |
| 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. |
Detection Modes: Zero Crossing, Flank and Peak. | Flaw Detector: EN22232-1 compliant. |
| Pulser | Display Freeze: Hold current waveform on screen. |
Warranty : 2 year limited |
| Pulser Type: Two adjustable square wave pulsers and receivers. |
Peak Memory: Captures peak signal amplitude. | |
| P.R.F.: 8 to 2000Hz in selectable steps (8, 16, 32, 66, 125, 250, 333, 1000, 2000Hz). |
Skip Bar: Displays skip legs in the waveform area. | |
| Pulser Voltage: 100-200 volt peak amplitude, rise/fall time < 10ns into 50ohm. |
Measurement Modes (Dual & Single Element):Thickness Gauge Features Pulse-Echo Mode (P-E) - (Pit & Flaw Detection) range 0.025 to 96 in (0.63mm to 244 cm). Single Contact - 0.040 in to 100 ft. (1 mm to 3048 cm). Pulse-Echo Coating Mode (PECT) - |
|
|
Pulse Width: 40 to 400 ns. Selectable step options 40, 80 & 400 ns |
(Material, Coating, Pit & Flaw Detection): Material: 0.025 in to 96 in (0.63mm 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 0.025 in to 96 in (0.63 mm to 244 cm). |
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The FX71-DL is a dual-function NDT instrument that combines Ultrasonic Flaw Detection (UT) and Precision Thickness Measurement in a single device, making it ideal for weld inspection, defect detection, corrosion monitoring, and asset integrity assessments.
The FX71-DL supports Ultrasonic Flaw Detection, A-Scan analysis, Thickness Measurement, Corrosion Inspection, and Weld Inspection, eliminating the need for separate instruments.
Yes. The instrument features a live A-Scan waveform display for precise flaw evaluation, signal verification, and thickness measurement validation.
The FX71-DL can detect cracks, porosity, inclusions, laminations, lack of fusion, lack of penetration, corrosion damage, and weld defects in metallic and non-metallic materials.
Yes. Users can switch between flaw detection and thickness measurement modes, allowing comprehensive inspection using a single instrument.
The FX71-DL provides accurate thickness measurement across a wide range of materials and thicknesses depending on the selected probe and inspection application.
Yes. The instrument supports DAC (Distance Amplitude Correction) and AVG/DGS evaluation methods, enabling accurate flaw characterization and acceptance criteria evaluation.
The FX71-DL features a large high-resolution color TFT display, ensuring clear visibility of A-Scan waveforms, flaw indications, thickness values, and inspection parameters.
Yes. The instrument supports internal data storage, A-Scan recording, inspection file management, and report generation for traceability and compliance documentation.
Oil & Gas, Power Plants, Refineries, Aerospace, Manufacturing, Fabrication, Shipbuilding, Railway, Pressure Vessel Inspection, and Structural Integrity Assessment sectors.
Yes. The instrument is ideal for weld quality inspection, enabling detection of internal discontinuities such as lack of fusion, slag inclusions, and cracks.
Key advantages include dual functionality (Flaw Detector + Thickness Gauge), A-Scan display, DAC/AVG analysis, color TFT screen, data logging, weld inspection capability, corrosion monitoring, and professional NDT reporting features.
The FX71-DL is a dual-function NDT instrument that combines Ultrasonic Flaw Detection (UT) and Precision Thickness Measurement in a single device, making it ideal for weld inspection, defect detection, corrosion monitoring, and asset integrity assessments.
The FX71-DL supports Ultrasonic Flaw Detection, A-Scan analysis, Thickness Measurement, Corrosion Inspection, and Weld Inspection, eliminating the need for separate instruments.
Yes. The instrument features a live A-Scan waveform display for precise flaw evaluation, signal verification, and thickness measurement validation.
The FX71-DL can detect cracks, porosity, inclusions, laminations, lack of fusion, lack of penetration, corrosion damage, and weld defects in metallic and non-metallic materials.
Yes. Users can switch between flaw detection and thickness measurement modes, allowing comprehensive inspection using a single instrument.
The FX71-DL provides accurate thickness measurement across a wide range of materials and thicknesses depending on the selected probe and inspection application.
Yes. The instrument supports DAC (Distance Amplitude Correction) and AVG/DGS evaluation methods, enabling accurate flaw characterization and acceptance criteria evaluation.
The FX71-DL features a large high-resolution color TFT display, ensuring clear visibility of A-Scan waveforms, flaw indications, thickness values, and inspection parameters.
Yes. The instrument supports internal data storage, A-Scan recording, inspection file management, and report generation for traceability and compliance documentation.
Oil & Gas, Power Plants, Refineries, Aerospace, Manufacturing, Fabrication, Shipbuilding, Railway, Pressure Vessel Inspection, and Structural Integrity Assessment sectors.
Yes. The instrument is ideal for weld quality inspection, enabling detection of internal discontinuities such as lack of fusion, slag inclusions, and cracks.
Key advantages include dual functionality (Flaw Detector + Thickness Gauge), A-Scan display, DAC/AVG analysis, color TFT screen, data logging, weld inspection capability, corrosion monitoring, and professional NDT reporting features.
The FX71-DL is a dual-function NDT instrument that combines Ultrasonic Flaw Detection (UT) and Precision Thickness Measurement in a single device, making it ideal for weld inspection, defect detection, corrosion monitoring, and asset integrity assessments.
The FX71-DL supports Ultrasonic Flaw Detection, A-Scan analysis, Thickness Measurement, Corrosion Inspection, and Weld Inspection, eliminating the need for separate instruments.
Yes. The instrument features a live A-Scan waveform display for precise flaw evaluation, signal verification, and thickness measurement validation.
The FX71-DL can detect cracks, porosity, inclusions, laminations, lack of fusion, lack of penetration, corrosion damage, and weld defects in metallic and non-metallic materials.
Yes. Users can switch between flaw detection and thickness measurement modes, allowing comprehensive inspection using a single instrument.
The FX71-DL provides accurate thickness measurement across a wide range of materials and thicknesses depending on the selected probe and inspection application.
Yes. The instrument supports DAC (Distance Amplitude Correction) and AVG/DGS evaluation methods, enabling accurate flaw characterization and acceptance criteria evaluation.
The FX71-DL features a large high-resolution color TFT display, ensuring clear visibility of A-Scan waveforms, flaw indications, thickness values, and inspection parameters.
Yes. The instrument supports internal data storage, A-Scan recording, inspection file management, and report generation for traceability and compliance documentation.
Oil & Gas, Power Plants, Refineries, Aerospace, Manufacturing, Fabrication, Shipbuilding, Railway, Pressure Vessel Inspection, and Structural Integrity Assessment sectors.
Yes. The instrument is ideal for weld quality inspection, enabling detection of internal discontinuities such as lack of fusion, slag inclusions, and cracks.
Key advantages include dual functionality (Flaw Detector + Thickness Gauge), A-Scan display, DAC/AVG analysis, color TFT screen, data logging, weld inspection capability, corrosion monitoring, and professional NDT reporting features.
The FX71-DL is a dual-function NDT instrument that combines Ultrasonic Flaw Detection (UT) and Precision Thickness Measurement in a single device, making it ideal for weld inspection, defect detection, corrosion monitoring, and asset integrity assessments.
The FX71-DL supports Ultrasonic Flaw Detection, A-Scan analysis, Thickness Measurement, Corrosion Inspection, and Weld Inspection, eliminating the need for separate instruments.
Yes. The instrument features a live A-Scan waveform display for precise flaw evaluation, signal verification, and thickness measurement validation.
The FX71-DL can detect cracks, porosity, inclusions, laminations, lack of fusion, lack of penetration, corrosion damage, and weld defects in metallic and non-metallic materials.
Yes. Users can switch between flaw detection and thickness measurement modes, allowing comprehensive inspection using a single instrument.
The FX71-DL provides accurate thickness measurement across a wide range of materials and thicknesses depending on the selected probe and inspection application.
Yes. The instrument supports DAC (Distance Amplitude Correction) and AVG/DGS evaluation methods, enabling accurate flaw characterization and acceptance criteria evaluation.
The FX71-DL features a large high-resolution color TFT display, ensuring clear visibility of A-Scan waveforms, flaw indications, thickness values, and inspection parameters.
Yes. The instrument supports internal data storage, A-Scan recording, inspection file management, and report generation for traceability and compliance documentation.
Oil & Gas, Power Plants, Refineries, Aerospace, Manufacturing, Fabrication, Shipbuilding, Railway, Pressure Vessel Inspection, and Structural Integrity Assessment sectors.
Yes. The instrument is ideal for weld quality inspection, enabling detection of internal discontinuities such as lack of fusion, slag inclusions, and cracks.
Key advantages include dual functionality (Flaw Detector + Thickness Gauge), A-Scan display, DAC/AVG analysis, color TFT screen, data logging, weld inspection capability, corrosion monitoring, and professional NDT reporting features.
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