Phased Array Flaw Detector NOVOTEST UD4701PA


Portable ultrasonic flaw detector NOVOTEST UD4701PA – device for detecting defects in finished products, semi-finished products and welded joints, as well as determining their coordinates and using DAC and DGS functios. Equipped with a contrast color TFT display (resolution of 640×480), reliable enclosure, the device is always ready for operation, both in the laboratory and in locations with aggressive environmental influences such as temperature, dirt and precipitation.

In addition to traditional functions, the flaw detector has an input of a 2-axis encoder, which allows user to connect various scanners to build C-, B- and other scans and TOFD scan of the tested part of the product.

Use the device may not even highly be qualified specialists, since adjustment and calibration takes less than 5 minutes, and pre-defined functions allow for quick inspection and ensure the quality of the results.

NOVOTEST UD4701PA allows user to assess the state of products or structural elements on site and without pre-testing. This flaw detector is indispensable in such industries like construction, machine building, production of rolled metal, power engineering, research works, chemistry, mining etc.


  • 16-channel PA with C-SAFT / TFM signal processing;
  • Recording of signals by 1 or 2 position rotary encoder;
  • RF Amplifier for equalizing the sensitivity at the corners of the input;
  • Adjusting the aperture and the scanning angle;
  • Normal Flaw Detector Mode;
  • TOFD mode;
  • Weld geometry constructor;
  • Interface: USB;
  • Easy and convenient firmware upgrade via USB;
  • Power: Li-ion battery or external power supply;
  • Up to 10-12 hours of battery life.


Weight1.4 kg with batteries
Size (H x W x L)200 mm x 225 mm x 80 mm
Operating temperature rangeFrom -30 C to +55 C
Supply voltage15V / 2,5А DC
External power supplyPower Supply 220В AC
Working hoursnot less 10 hours of operation from the built-in battery
BatteryLi-ion 10.8V, 5000 mА/h
Transducer connectors2 Х Lemo00,1 Х Lemo 16
Firmware UpgradeSelf-powered by USB
Menu LanguageRussian, English
Memory200 settings with A-signal
1000 monitoring protocols and scan results
DisplayColor high contrast, TFT 640 x 480 pixels, (130 x 100 mm).
Changing the color schemes of the screen for viewing and lighting conditionsYes
Processing the image on the screen after “freezing” the screenFull-featured processing and analysis
Support for the weld inspection standard AWS D1.1Yes, with automatic calculation D1.1 Ratio
Comparison with the saved reference signalAutomatic in the entire amplification range
Estimation of the size of defects in the classical flaw detector modebuilt-in ADD diagrams
Amplitude measurementIn percentage of the height of the screen,
In dB relative to the threshold level in the zone,
In dB relative to the reference signal,
Automatic Defect AlarmLight, sound
Simultaneous display of signals on the screen in the PR mode in manual modeS-scan
А-scan + S-scan,
А-scan + B-scan,
S-scan + B-scan,
А-scan + S-scan + B-scan
Determination of linear dimensions between reflectors in S-scanBy two markers, set manually or automatically
Calculation of the coordinates of the reflectors on the S-scanAutomatically in the entire range of S-scan, using a mathematical model of the prism in the memory of the flaw detector, the accuracy of determining the coordinates to 0.1mm
Algorithm for finding a defect in the testeing zoneAutomatically on the maximum amplitude of the signal in the zone, auto at the maximum amplitude of the signal on the selected beam, manually
Control zonesRectangular zone for allocation of a part of a signal on an S-scan with an accuracy of setting boundaries to 0.1mm
2 independent time-domain zones
Display of signals on the screen (visualization)А-scan, B-scan, С-scan, D-scan, S-scan, L-scan, TOFD
Digital signal filteringYes
Analog Signal FilteringYes
Additional key + dB6
Electrical damping of the converter to increase the resolution25 Ω, 50 Ω, 600 Ω
Gain Control Range100 dB, in step 0.5, 1, 2, 6 dB
AmplifierBroadband: 0.1-20 MHz, with the option of narrowband filters
B-ScanDisplay of real weld geometry (True-to-geometry imaging)
Using TOFDSingle-channel TOFD with recording by the path of probe or time
Using scannersAny 2-axis scanners with optical encoders, scans in the memory of the device, analysis of scans in the device, and in a special analysis software
Welded joint geometry designerBuilt-in helper, displaying the cutting of the seam on the scan image
Automatic calibration of ultrasonic velocityYes
Automatic calibration of the control range for a given seam thicknessYes
Frequency of recurrencesIs automatically set depending on the set parameters
Sounding impulseRadio pulse amplitude of 50 V, with adjustable number of periods (0.5-5)
Speed range100 – 10 000 m/s
Scanning modeS-scan (sector scan), L-scan (linear scan with a constant angle)
ScanMin.: 0 – 5 mm
Max.: 0 – 3200 mm (depends on the operating modes and the converter)
In step 0.1, 1, 5, 10 mm
Automatic calibration of the delay in the prismWith V-2 calibration block from reflector, calibration of TOFD converters
Leveling of sensitive in depthTVG, up to 10 dB / μs, with an accuracy of 0.01 dB / μs
Aligning the sensitivity at the corners while scanning2D correction (10 lines in depth, 20 points for corner correction each)
Adjusting the angle scan angleFrom 0,3 to 2 degrees
Adjustment of working aperture4, 8 and 16 simultaneously working elements
Adjustment of the FR parameters of the converterAutomatic from non-volatile memory of the device
Algorithm for signal processingDigital signal focusing using the C-SAFT / TFM method
Type of PHAs usedAny classic 16-channel PA
Gross weight, not more than8 kg

Available Option

Standard Packages

  • Ultrasonic flaw detector UD4701PA
  • PA 16 channel probe – 1 pcs
  • UT-probe – 2 pcs
  • Calibration block SO-2
  • Cables Lemo-Lemo
  • Power supply
  • Charger
  • Memory card
  • Operating manual
  • Case


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