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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.


Weight 1.4 kg with batteries
Size (H x W x L) 200 mm x 225 mm x 80 mm
Operating temperature range from -30 C to +55 C
Supply voltage 15V / 2,5А DC
External power supply Power Supply 220В AC
Working hours not less 10 hours of operation from the built-in battery
Battery Li-ion 10.8V, 5000 mА/h
Transducer connectors 2 Х Lemo00,1 Х Lemo 16
Firmware Upgrade Self-powered by USB
Menu Language Russian, English
Interface USB
Memory 200 settings with A-signal
1000 monitoring protocols and scan results
Display Color high contrast, TFT 640 x 480 pixels, (130 x 100 mm).
Changing the color schemes of the screen for viewing and lighting conditions yes
Processing the image on the screen after “freezing” the screen Full-featured processing and analysis
Support for the weld inspection standard AWS D1.1 Yes, with automatic calculation D1.1 Ratio
Comparison with the saved reference signal Automatic in the entire amplification range
Estimation of the size of defects in the classical flaw detector mode built-in ADD diagrams
Amplitude measurement in percentage of the height of the screen,
in dB relative to the threshold level in the zone,
in dB relative to the reference signal,
by DAC
Automatic Defect Alarm light, sound
Simultaneous display of signals on the screen in the PR mode in manual mode S-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-scan by two markers, set manually or automatically
Calculation of the coordinates of the reflectors on the S-scan Automatically 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 zone Automatically on the maximum amplitude of the signal in the zone, auto at the maximum amplitude of the signal on the selected beam, manually
Control Zones rectangular 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 filtering yes
Analog Signal Filtering yes
Additional key + dB 6
Electrical damping of the converter to increase the resolution 25 Ω, 50 Ω, 600 Ω
Gain Control Range 100 dB, in step 0.5, 1, 2, 6 dB
Amplifier Broadband: 0.1-20 MHz, with the option of narrowband filters
B-Scan Display of real weld geometry (True-to-geometry imaging)
Using TOFD Single-channel TOFD with recording by the path of probe or time
Using scanners Any 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 designer Built-in helper, displaying the cutting of the seam on the scan image
Automatic calibration of ultrasonic velocity yes
Automatic calibration of the control range for a given seam thickness yes
Frequency of recurrences is automatically set depending on the set parameters
Sounding impulse radio pulse amplitude of 50 V, with adjustable number of periods (0.5-5)
Speed range 100 – 10 000 m/s
Scanning mode S-scan (sector scan), L-scan (linear scan with a constant angle)
Scan min.: 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 prism with V-2 calibration block from reflector, calibration of TOFD converters
Leveling of sensitive in depth TVG, up to 10 dB / μs, with an accuracy of 0.01 dB / μs
Aligning the sensitivity at the corners while scanning 2D correction (10 lines in depth, 20 points for corner correction each)
Adjusting the angle scan angle from 0,3 to 2 degrees
Adjustment of working aperture 4, 8 and 16 simultaneously working elements
Adjustment of the FR parameters of the converter Automatic from non-volatile memory of the device
Algorithm for signal processing Digital signal focusing using the C-SAFT / TFM method
Type of PHAs used any classic 16-channel PA
  • Ultrasonic flaw detector
  • UT-probes – 2 pcs
  • Cable Lemo-Lemo
  • Power supply and charger
  • Memory card
  • Operating manual
  • Case