Cygnus ROV Mountable
Ultrasonic Thickness Gauge
Specifically designed for underwater remotely operated vehicles, Cygnus offers a dedicated ROV mountable thickness gauge, ROV MK5 UTG Kit (depth rated to 500 meters). This gauge is versatile and designed to measure metal thickness in the harshest subsea operating conditions – without the need to remove coatings. Ideal for UWILD or IWS class surveys, subsea inspection, repair and maintenance (IRM) of infrastructure, underwater equipment.
Key Features:
- Multiple-Echo mode for accurate, through-coat measurements as specified by Classification Societies
- Supplied with CygLink software to display and process measurements on a computer at the surface
- Selectable Deep-Coat mode ignoring coatings up to 20mm thick
- Fitted with a safety Pressure Relief Valve and Securing Eye
- Easy calibration at the surface via CygLink software or TopSide Repeater (TSR) unit
- Removable end plate for full serviceability
- Wet mateable ‘MC’ style underwater connectors
- Optional Topside Repeater (TSR) unit allowing readings to be displayed remotely and superimposed onto ROV’s camera screen
- Optional purpose-built ROV probe handlers for optimal alignment.
| Materials | Velocities between 2,000 and 7,000 m/s (0.0800 and 0.2780 in/microsec) |
| Measurement Range in Steel | 1 – 250 mm (0.040 – 10 inch) depending on selected probe and configuration, material and temperature |
| Accuracy | ±0.1 mm (±0.004 inch) or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure |
| Resolution | 0.1 or 0.05 mm (selectable) (0.005 or 0.002 inch) |
| Probe Options | Single crystal probes |
| Power | 7.0 – 30 V DC @ 150 mA (max) |
| Size | 127 x 90 mm (5 x 3.5 inch) |
| Weight in Air | 900 g (2 lb) |
| Operating Temp. | -10°C to +50°C (14°F to 122°F) |
| Testing | Depth rated to 500 meters (1,640 ft) |
| Communication | RS-422, Simplex Single Pair or RS-232 TXD 2400 or 9600 Baud (selectable via DIP switches) |
| Standards | Designed for EN 15317 |
| Compliance | CE, UKCA, RoHS |
| Warranty | 3 years on gauge and 6 months on probe |
| Weight | 5 kg |
| Kit | Cygnus ROV Mountable Gauge Standard Kit – 2K Model – WITHOUT PROBE |
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2 reviews for Cygnus ROV Mountable
James M.
May 16, 2015 1:03 PM
This is to testify that over the last 23 years of working offshore I have come across Cygnus instruments both as a Diver and as an ROV supervisor.
As a diver I held a CSWIP 3.2u Subsea inspection qualification for 10 years.
During the last 13 years I have had occasion to be involved with the ROV mountable systems on two occasions. In both instances the probe and Subsea housing were fitted to work class vehicles. The systems were able to take UT readings to client satisfaction.
On one setup we attached the probe to a 7 function manip (T3) which gave us extra options whilst trying to take readings on non vertical or variable angled faces.
The system is designed to ensure that it will only display correct readings. In other words you either get a correct reading or no reading at all.
Reading through hard marine growth is not practical. Reading through soft marine growth or protective coatings presents no real issues.
From operational experience am aware that all readings eliminate the coating thickness so only the true metal thickness is displayed.
Should I need to specify an Ultrasonic digital thickness gauge for Subsea ROV use I would choose either the Cygnus -1000m* or the -3000m* ROV mountable gauge depending on operational depth.
The -3000m* unit of course will work shallow or deep, so is probably a better all round option for future project use.
*1000m and 3000m are previous models. Available now is the 2000m model.
George G.
Nov 04, 2020 1:01 PM
I have used Cygnus UT systems for many years and to me they deliver what’s required for quick and reliable results. As we move even more towards ROV based operations, having a cost-effective wall thickness capability is a key component in our service offering- and Cygnus does just that!