Dakota Ultrasonics DFX-7 Series Ultrasonic Flaw Detector & Thickness Gauge

Dakota Ultrasonics’ DFX-7 Series Ultrasonic Flaw Detector and Thickness Gauge covers the full range of ultrasonic inspection applications: material thickness, coating thickness, flaw detection, A & B Scans, standard UT functions including DAC, AWS, AVG/DGS, curved surface correction, and memory storage of 8,000 (graphics on) to 210,000 readings (graphics off).


Dakota Ultrasonics’ DFX-7 combines an ultrasonic flaw detector and thickness gauge.


  • Pulse-Echo, Echo-echo, Coating-only modes available for all ultrasonic testing applications
  • 1/4 VGA AMOLED colour display
  • Automatic Calibration with two reference points
  • Display freeze
  • Broad & Narrow Band Amplifier
  • Two adjustable square wave pulsers and receivers
  • Trig Functions
  • Curved Surface Correction
  • DAC – up to 8 points may be entered to digitally draw a DAC curve, with Time-Corrected Gain
  • AWS – automatic defect sizing to AWS D1.1 welding code
  • AVG/DGS – automatic defect sizing using probe data
  • Memory stores 210,000 readings (graphics off), or 8,000 readings with A/B Scan image and gauge settings
  • Extruded Aluminum Case (IP65)
  • Runs on 3 AA batteries
  • RS232 serial interface, PC software, and USB cable included
Weight397 g
Dimensions165 × 63.5 × 31.5 mm

Dakota Ultrasonics DFX-7 Ultrasonic Thickness Gauge comes with:

  • ZX-1 Ultrasonic Thickness Gauge
  • Dual-element Transducer (choose from several different types for different applications)
  • Bottle of Couplant (ultrasonic gel)
  • NIST-traceable Calibration Certificate
  • Users Manual
  • Hard Plastic Carrying Case

Dakota Ultrasonics DFX-7 Datasheet