Cygnus ROV UTM

Deep Water Ultrasonic Thickness Tester

An ROV mountable metal thickness tester featuring live A-scan, piezo-composite probe and self-aligning probe handler. The ROV UTM has been depth rated to 3,000 meters and is designed to measure metal thickness in the harshest subsea operating conditions - without the need to remove coatings.

Key features of the Cygnus ROV UTM ultrasonic thickness tester include:

  • A-scan to assist with measurement verification visually
  • Multiple-Echo and Echo-Echo for accurate measurements through coatings (up to 1 mm) as specified by Classification Societies
  • Single-Echo mode for heavily corroded metals with no coating
  • Use the Auto Single-Echo / Echo-Echo / Multiple-Echo measuring mode for best results or set manually
  • Supplied with CygLink to display and process measurements on a computer at the surface
  • High-performance SD2C probe fitted with a Hard Rexolite Delay line
  • Easy calibration and measurement settings via CygLink software at the surface
  • P50 Probe Handler cleverly-designed to self-align with pipes from 50 mm diameters to flat surfaces
  • Manual or automatic gain control.

Key benefits of the Cygnus pioneered Multiple-Echo technique include:

  • Measures remaining metal thickness on corroded and coated structures
  • All measurements are error checked using 3 return echoes to give repeatable, reliable results
  • Accepted by all major classification societies
  • Greatly reduces inspection time and costs
  • Echo strength indicator to aid measurement.

Engineered Probe Handling Solutions

  • ‘P50’ Probe Handler designed to align the ultrasonic probe on to straight pipes, from 50 mm in diameter up to flat surfaces.
  • Spring-loaded probe and v-shaped block allowing the probe to be positioned correctly on a straight pipe and move to accommodate different pipe diameters.
  • A gimbal that allows the probe to move to align on to the straight pipe surface when used with a ROV manipulator arm.
  • Probe handler can be fitted with a choice of manipulator handles – T Bar or Fishtail.

Cyglink Software

CygLink is a Windows® based application for topside computer use to display continuous A-Scan output and measurement data. CygLink has the facility to log both data formats into a Survey file for report presentation, which can be emailed, exported as a PDF, or printed.

MaterialsSound velocities between 2,000 – 9,000 m/s
Measuring ModesMultiple-Echo using 3 echoes to ignore coatings up to 1 mm thick
Echo-Echo using 2 echoes to ignore coatings up to 1 mm thick
Single-Echo using 1 echo
Accuracy±0.1 mm or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure
Measurement Range in SteelMultiple Echo: 4 – 20 mm
Echo Echo: 4 – 30 mm
Single Echo: 4 – 50 mm
Measurement Resolution0.1 mm
Probe ZeroAutomatic and manual selectable
Power12 – 24 V supply input @ 60mA (average) @ 200mA (maximum)
Size105 x 110 x 35 mm
Weight in AirGauge body 3.7 kg max.
Operating Temp.-10°C to 50°C
Environmental RatingIP68 rated to 3,000 m
CommunicationRS-232
Computer SoftwareCygLink allows remote data logging and viewing of A-scan graphs
Survey and report generation to PDF file
Graphic analysis of data
Designed for Windows 10 and above
EnvironmentalCE, UKCA, RoHS
Warranty3 years on tester
6 months on probes

ROV UTM unit, SD2C-DAW 2.25 MHz single element delay line probe with cable and connector fitted in a P50 probe handler, 0.6 m patch cable for wiring the ROV UTM to the ROV, test lead – RS-232 to USB, test block 15 mm thick in 1080 mild steel, USB flash drive with CygLink software and documentation, calibration certificate, silicon grease for lubricating connectors and O-rings.

Weight5 kg

The Cygnus ROV UTM deep water ultrasonic thickness tester uses a high-performance probe that is fitted with a Hard Rexolite Delay line.

The P50 Probe Handler can be fitted with a choice of manipulator handles – T Bar or Fishtail.

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