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DFX6 Ultrasonic Flaw Detector


The DFX6 Ultrasonic Flaw Detector is no longer available and has been replaced by DFX8.
Click here to see the DFX8.


Made in the USAThe DFX series ultrasonic flaw detectors are full featured digital scopes designed to handle the simplest to the most difficult applications. Whether the application requires high penetration for materials that are difficult to measure, or high resolution for precision aerospace parts, the DFX series flaw detectors are equipped with the necessary features to do the job. They can go where you go, to do the work you do, saving you time and money, making your inspections fast and accurate.


Features
  • Transflective Color TFT Display
  • Broad & Narrow Band Amplifier
  • Square Wave Pulser (Active Edge)
  • Extruded Aluminium Case (IP65)
  • Digital Thickness Display
  • DAC/TCG/AWS/DGS
  • Automatic Calibration
  • PC/Video/Analog Outputs
  • Long Battery Life (Li-ion pack)
  • Large Memory Capacity
  • Curved Surface Correction
  • Alphanumeric Notes
  • Trig function
  • Help feature

Specifications
Size9.25 x 7.13 x 4.0 in (235 x 181 x 102mm)
Weight7.5lbs. (3,4Kgs) with Li-Ion cells.
CaseExtruded Aluminum.
Displaytransflective TFT Color. Display area: 4.39” x 3.29” (111.4 x 83.5mm) 320 x 240 pixels. A-Scan area: 255 x 200 pixels (315 x 200 expanded), 8 color options and variable brightness.
TemperatureOperating –10 to +55°C or 14 to 131°F –20 to +70°C or –4 to 158°F (survivable) Storage –40 to +75°C or –40 to 167°F
EnvironmentalMeets IP65 requirements.
UnitsEnglish (in), Metric (mm), or Time (µs).
Probe Zero0–999.999 µs.
Velocity615 & 625 0.0393 to 0.3937 in/µs (1000–9999m/s). 635 & 638 0.0100 in/µs (256 to 16000 m/s.
Test Range615 & 625 0 - 0.2in (5mm) up to 0 - 400in (10,000mm) at steel velocity. Variable in sequence, 0.4in or 0.04in (10mm or 1mm). 635 & 638 0 - 0.05in (1mm) up to 0 - 800in (20,000mm) at steel velocity. Variable in 1, 2, 5 sequence or continuously in 0.05in (1mm) increments. Also from 1 to 5000(µs).
Test ModesPulse-echo and transmit/receive.
Gates615 & 625 Start & Width adjustable over full range. Amplitude 0 -100%, 0.5% steps. Visual & audible alarms. Single gate positive trigger, and two gates positive and negative triggering. Gate 2 has selectable 0.6 second delay on alarm. 635 & 638 Two fully independent gates with positive and negative triggering for each gate.
Gate Expansion635 & 638 Expands range to width of Gate 1.
Gate Monitor Delay635 & 638 Selectable 0.6 sec delay on gate 2 negative monitor.
Measurement Modes
Signal Monitor635 & 638.
DepthDepth and amplitude of signal in gate
Echo EchoEcho-Echo distance, automatic gate 2 position.
Gate to Gate625 Echo-Echo , manual gate 2 position. 635 & 638 independent gates.
TrigTrigonometric display of beam path, depth and surface distance. Calculation of skip depth and curve surface compensation, X-offset for transducer.
T-MinHolds minimum thickness in depth mode.
System LinearityVertical = 1% Full Screen Height (FSH) Amplifier Accuracy ±0.1%dB. Horizontal ±0.4% Full Screen Width (FSW).
Pulser Voltage615 & 625 200 volt peak amplitude, rise/fall time < 10ns into 50ohm. 635 & 638 100V - 350V (450V 638 ) square wave pulser. Pulse width from spike to 2000ns duration - rise/fall times < 5ns into 50 ohms.
Pulser Width615 fixed at 100ns. 625 30-250ns linked to filter band. 635 & 638 Adjustable in 2% of nominal width, minimum 1ns maximum 40ns.
ActiveEdgeUnique active pulse control for enhanced near surface resolution and signal response. Replaces traditional damping control.
P.R.F.615 fixed at 100ns. 625 30-250ns linked to filter band. 635 & 638 Adjustable in 2% of nominal width, minimum 1ns maximum 40ns.
Screen Update Rate50 or 60Hz
RectificationFull wave, positive or negative half wave and unrectified RF.
Delay615 & 625 0 - 400 in (10,000mm) 635 & 638 0 - 800in (20,000mm) at steel velocity in 0.02 steps (0.05mm).
Gain0 to 110dB. Adjustable in 0.5, 2, 6, 14 and 20dB steps
Frequency Bands615 4Broadband 1 - 10 MHz (-6dB). 625 4 Narrow Bands centered at 1MHz, 2MHz, 5MHz, & broadband 1.5–15MHz. 635 & 638 6 narrow bands centered at 0.5, 1, 2.25, 5, 10 & 15 MHz. Broad band at 2 to 22 MHz (-6dB) and 1 to 35 MHz (-20dB).
Vertical Linearity1% full screen height.
Amplifier Linearity+/- 0.1 dB.
Horizontal Linearity+/- 0.4% full screen width (FSW).
Reject615 & 625 50% suppressive reject. LED warning when selected. 635 & 638 80% linear reject.
Thickness LoggingStorage for 8000 readings stored in Block/Location/Number coding or alpha-numeric pre-programmed work sheets. Transferable to Excel using optional PC software.
Panel Memory100 storage locations for calibration settings.
A-Scan Memory800 waveforms.
Wave SmoothingProduces a smooth signal envelope.
AGCAutomatic Gain Control sets selected echo to a user defined level (10 - 90%).
DACUp to 10 points may be entered and used to digitally draw a DAC curve. Reference -2, -6, -10, -12, -14 dB curves can be selected for JIS, ASME and EN1714 codes.
AWSAutomatic defect sizing in accordance with AWS D1.1 Structural Welding Code
APIAutomatic defect sizing in accordance with API 5UE.
AVG/DGSAutomatic defect sizing using probe data. 10 probe data sets can be stored.
TCG625, 635 & 638 Time corrected gain. 40 dB dynamic range, 30 dB per microsecond, up to 10 points for curve definition.
Auto-CalProvides Automatic calibration with two echoes.
Reference WaveformRecalled waveform can be shown in a different color to live waveform for direct comparision.
Display FreezeHold current waveform on screen.
Peak MemoryFor echodynamic pattern determination.
Online HelpInstant operator guidance on operation accessed from direct key.
Language SupportSix user selectable languages from: English, German, French, Spanish, Dutch, Italian, Russian, Polish, Czech, Finnish & Hungarian. Others available on request.
BatteryLithium Ion battery pack 14.4V, 5.0 Amp hrs. Minimum 11 hours use, typical 15 hours, indication of battery charge. Recharge time 4 hours.
Charger100 - 240 VAC, 50 - 60Hz.
USB ConnectionFor connection to PC, keyboard and printer.
OutputsSerial Interface, composite video (NTSC & PAL), analog output for amplitude and distance updated at PRF rate. Transmitter sync output.
Transducer Connectorsavailable with BNC or LEMO 1 connectors (factory option).
Warranty2 year limited
Additional 638 Features
Interface triggerInterface gate locks to surface echo and eliminates water path variation.
High Power Pulser450 volt boost.

Complete Kit
The DFX6 is supplied as a complete kit including:
- DFX6 Flaw Detector,
- Lithium Ion Battery,
- Battery Charger CH-700,
- Canvas instrument case,
- Clear Screen,
- Operating manual,
- Calibration certificate,


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