OKOndt TOFD 2.2 PRO Wireless System

OKOndt TOFD 2.2 PRO Wireless System

Compact & Reliable Equipment

OKOndt's TOFD 2.2 PRO System performs mechanized ultrasonic testing of butt welds using Time-Of-Flight Diffraction (TOFD) technique. The TOFD method has been widely used for fast and reliable ultrasonic testing of welded joints and offers great accuracy for measuring the critical size of crack-like-defects. An accuracy of better than ±1mm (0.03") can be achieved in a wide range of material thicknesses. The system is shockproof and has an IP65 protecting rating. 
Applications include ultrasonic testing of welded joints in:

  • Flat objects
  • Tubes of medium and large diameters – OD greater than 12" (300 mm) – depends on the scanner type
  • Spherical and cylindrical oil and gas tanks – OD greater than 33 ft (10 m)

 

 

Features

  • Quick, accurate and highly reproducible weld inspection
  • Wireless operation - data acquisition PC can stay anywhere within Wi-Fi range
  • Works with any type of Windows based computer: Laptop, Desktop, Tablet, etc. Interface is both mouse and finger friendly
  • Quick and comprehensive setup due to the element libraries: Geometry library, Materials library, Scanners library, Probes library, etc.
  • Individual, automated water supply under each probe
  • Shockproof TOFD module and battery pack - the scanner design ensures protection of its electronics against impact
  • Magnetic wheels and spring loaded probe carriers with self-positioning system ensure transducers stability on the object surface - results in good coupling and essential for reliable results
  • Scanner is easy to drive and doesn’t fall from the object even when upside-down
  • IP65 Protection Rating
  • 8 hours of operation - storage battery can be replaced quickly with a single hand if necessary

TOFD Main Advantages

  • Detects defects regardless of their orientation, in contrast to the pulse echo technique
  • Planar defects and cracks that are not perpendicular to the measured surface can be detected, in contrast to the radiography method
  • High degree of repeatability
  • Precise defect sizing capability
  • Fast scanning only along the weld. Full volume inspection in a single run
  • Immediate results and permanent digital records with graphic images
  • Amplitude insensitive – acoustical coupling less critical
  • Set-up independent of weld configuration

 

Software

TOFD System Software consists of several tabs that allow NDT inspectors to perform a step-by-step setup procedure, data acquisition and analysis. Easy to use with a mouse or via touchscreen. Quick and comprehensive setup due to the element libraries: Geometry library, Materials library, Scanners library, Probes library, etc. Full setup packages applicable for specific tasks of testing can be saved and loaded when it is necessary at all times.
Main software functions are distributed among the following tabs:

Object Tab

  • Test object geometry selection and setting up its dimensions
  • Test object material selection
  • Type of a weld bevel selection and setting up its dimensions

Scanner Tab

  • Scanner selection
  • Scanner type setup: manual, motor-operated
  • Spatial position setup of TOFD transducers pairs relative to the origin of the coordinate system
  • Up to 4 TOFD transducer pairs can be used at once
  • Encoder calibration

TOFD Setup Tab

  • TOFD probes and TOFD wedges type selection, or setup of their parameters
  • PCS setup (the distance between the index points of TOFD transducers) and their shift relative to the welded joint axis
  •  TOFD Calculator for the calculation and graphic display of the following parameters: Spatial resolution (R); Scanning-surface dead zone (D); Backwall dead zone (D); Locus curve; Beam Spread

TOFD Calibration Tab

  • Main UT parameters setup
  • Real-time TOFD calibration
  • Real-time checkup of reflectors detection in calibration block
  • Saving calibration results

Data Acquisition Tab

  • A-Scan + TOFD-Scan display during the testing process
  • Testing and data acquisition
  • Current scanner position and the scanning speed display
  • Data synchronization by lateral wave during the testing process
  • Scanning direction and capability to rescan regions with acoustic coupling loss
  • Saving test results

Data Analysis Tab

  • Review and analysis of saved data in a form of А-Scans and TOFD-Scans
  • Quick and detailed analysis of testing results using two measuring gates: normal, hyperbolic, manual hyperbolic
  • Measurable parameters: their position in the object (X and Y-coordinates); their length (ΔX); their depth and height (Z, ΔZ); their type: “volumetric”, "top-surface breaking", "bottom-surface breaking" or "inner"
  • Defects table building and saving

Reports Tab

  • Test results sorting and filtering in the database
  • TOFD scan scaling for printout
  • Preview reports
  • Print reports

Technical Specifications

2.2 PRO Wireless System Specifications

General Specifications

Testing Objects Parameters 
Thicknesses .25" - 2" (6 - 50 mm)
Diameter for Cylindrical Objects from 12" (300 mm) to flat
Diameter for Spherical Objects from 33 ft (10 m) to flat
Profile Types any
Scanner (with all electronics onboard)
Dimensions (LxWxH) 14.9" x 12.2" x 9.4" (380×310×240 mm)
Weight 16.5 lbs. (7.5 kg)
Number of TOFD Pairs 1
Coupling Liquid Supply Individually for each probe
Compatible Probes and Wedges
Frequencies 1-15 MHz
Angles (L-Wave) 45°, 60°, 70°
Measurement
Number of Cursors 2
Types of Cursors Conventional (cross) Hyperbolic
Manual Positioning ✔
Automatic Positioning ✔
Absolute Measurements ✔
Relative Measurements ✔
Indications Table ✔
Indications Parameters X, X1, X2, dX Z, Z1, Z2, dZ Type (Point, Top, Bottom, Middle, Volumetric) Amplitude
Units mm / in / us
Output Fields 5

 

TOFD Unit Specifications

Unit Connectors
Pulser and Receiver 2 × BNC
Encoder ✔
Power ✔
RS485 ✔
LAN ✔
Sync Input ✔
Trigger Output ✔
Pulser
Types SWP
Voltage (SWP) 20 V, 30 V, 40 V, 50 V, 80 V, 100 V
Energy (SWP) 20 ns to 500 ns with 10 ns step Manual & Auto modes
PRF from 15 to 2000 Hz
Receiver
Range Up to 100 us
Delay Up to 100 us
Gain 0 to 110 dB, with 0.1 dB step
Max Signal Input 20 V p-p
Bandwidth 0.2 MHz - 27 MHz
Filters 1 MHz, 2-3 MHz, 4-5 MHz, 10 MHz, 15 MHz, Full band
Rectification RF
Signal Average 2x / 4x / 8x / 16x / 32x

Transducers & Wedges

TOFD Transducers

* = included in basic delivery set

Catalog Number Frequency, MHz Element Diameter Object Thickness
in mm in mm
TWS10-3-TOFD 3/8" 10 .125 3 .390 - .600 10 - 15
TWS10-6-TOFD 3/8" 10 .250 6 .600 - 1.4 15 - 35
*TWS5-6-TOFD 3/8" 5 .250 6 1.4 - 2 15 - 50
TWS5-12-TOFD M16 5 .500 12 2 - 4 50 - 100
TWS3-12-TOFD M16 3 .500 12 4 - 8 100 - 200
TWS2.5-12-TOFD M16 2.5 .500 12 8 - 6 200 - 300
TWS2.25-12-TOFD M16 2.25 .500 12 8 - 6 200 - 300
TWS3-8-TOFD M16 3 .325 8 4 - 8 100 - 200
TWS2.5-8-TOFD M16 2.5 .325 8 4 - 8 100 - 200
TWS2.25-8-TOFD M16 2.25 .325 8 4 - 8 100 - 200
TOFD Wedges

* = included in basic delivery set

Catalog Number Thread Diameter Refracted Angle
WS45 L-3/8"-TOFD 3/8" 45°
WS60 L-3/8"-TOFD 3/8" 60°
*WS70 L-3/8"-TOFD 3/8" 70°
WS45 L-M16-TOFD M16 45°
WS60 L-M16-TOFD M16 60°
WS70 L-M16-TOFD M16 70°

Kit Includes

  • TOFD 2.2 PRO scanner (with electronics, battery and transducers on board)
  • Software for Windows laptop/tablet
  • Charger
  • Manual (hard copy)
  • Hard case

Additional Options

  • Rugged Notebook or Tablet PC with pre-installed TOFD Software
  • Additional transducers (see "Transducers" section)
  • Portable water tank (3,52gal/16l) with motorized pump (2-4,5Bar)
  • Extra battery
Description Part # Saved Price Select Option Add to
OKOndt TOFD 2.2 PRO Wireless Ultrasonic Testing System UT-OKO-TOFD-2.2-PRO
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