We have used the probe handler W1 on a few projects in the North Sea and Baltic Sea with our ROV Panther XTP and it has proved to be a very useful and productive tool allowing us to carry out a UT reading within seconds whether it was probing a flat surface or a rounded surface, due to its design it is the perfect handle for subsea UT probing.
I received the Cygnus 1 in 1987 and used it continuously for 10 years on submerged pipelines, without any problems. After that period it was mainly used for ship board survey inspections of hull thickness testing which is still in use today with the same set of batteries. I cannot praise this piece of equipment enough as it has given unbeatable service in extremely hostile environments without failing at any time. I would recommend this unit to anyone looking for a reliable ultrasonic thickness testing unit.
Reliable, accurate and easy to operate
I am very pleased with our Cygnus 4 ultrasonic thickness gauge. It works very well, it's reliable, easy to use and feels like a good quality piece of kit that is well worth the price.
Very good and very pleased
Believe it or not in the company that I belong to, we have an old one Cygnus 2 (single crystal) since 1990 or less, we compare to other devises that we have and confiability of Cygnus is incredible, there are certain surface that other can not measure. And our Cygnus has not the possibility to calibrate but when we test with the test block always is correct.
Haven't had it long (9 months) but seems reliable and robust, despite being an older model (MK3)
Item was used with total satisfaction, we shall keep in touch for further purchases soon.
I'm pleased to inform you that this month I completed the one hundred and twentieth vessels inspection and I'm entirely satisfied with the Cygnus Hatch Sure equipment.
Device is working very well, we have used many devices but this one is far ahead from others.
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.
Aquilino da Costa
Regarding the MK-2 this has been working very good and we did over 1.000 readings with the same battery on two different days; we are completing a serial of surveys on pontoon ferries with a total of 4,000 readings and so far we are very happy with the device performance.
We have used the equipment with very good results on a job so far.
We used the 5MHz dual crystal as it gave the best results on the pitted steel we found on the many corroded ships hulls where we tried the UT gauge. The DIVE was reliable, very easy to use, has simple menu system and displays. The logging function was essential as we only had 13 minutes on the wreck each day; I could make lots of measurements and figure out the answer back home in post processing, we also didn't have to write anything down or think too much as thinking isn't so easy in 40m water with the effects of narcosis!
first time I believed is going to perform well
Getting to grips with it, it's had a little use I think it's showing about 20hrs on the opening screen. I like the new style and display also like the wrist mount. Not used the data logging yet but I am sure I will. A pleasure to do business with you and I am sure I will be back again in the future.
I would like to express our appreciation regarding Cygnus' support during a recent umbilical manufacturing verification project. Your customer service was exemplary and we are impressed by the legibility of the readout on the Mk5 gauge.
On appraising Cygnus of the background to our requirement, the equipment was despatched and received the next day. Its ease of use means that we will certainly call upon you for any further such requirements.
Thanks for your assistance.
We approached Cygnus in late 2016 as a result of discovering areas of corrosion in our vessel Lord Nelson in an area specific to the design allowing for disabled access - the watertraps. These areas act to prevent the ingress of water into the vessel given that we can't have door sills due to the flat sill required for wheelchairs.
Given the age of Lord Nelson, now over 30 years old, it was agreed that to have our own NDT test instrument, while not negating the need for formal Lloyds' testing, would allow us to keep a check on corrosion and give us a level of confidence as and when areas were discovered. Cygnus kindly offered advice and supplied a Cygnus 4+ Ultrasonic Multi-Mode Thickness Gauge kit including both single and dual crystal probes.
Despite our own relative inexperience in such testing, the results we obtained were confirmed by professional spot testing and proved easy to achieve, the device being simple to calibrate and use, with both probe types.
Dimitrios G. Yiannoudakos
We tested the New Cygnus UTM Instruments 2+ and 4+ using single & twin crystals probes.
Tests carried out in our premises and in real working conditions on a 15 years old cargo ship of 10.000 M.Tns.
In our premises we used the following samples, which have been obtained from ships; cropped plates and we use them in our premises for practice purposes.
1.New Coated Steel Plate 10.0 mm.
2.Extremely corroded on both sides Steel Plate, with thickness variation from 4.6 mm to 9.7 mm. Taken gaugings were verified with Outside Callipers.
3.Gray Cast 12.0 mm.
4.Aluminium 6.0 mm.
On the Cargo Ship we focused our tests on the non-coated Inner Bottom Plating of 16.0 mm original thickness.
We got about 100 gaugings which varied between 15.8 mm to 14.4 mm.
All readings, in both tests, were obtained instantly and it should be mention that the new measuring experience with MSI System gave to us a real confidence that the reading we see is the real remaining thickness on that spot.
Apart the user-friendly, high analysis coloured LCD screen and the very easy menu we consider quite important to mention that once we took the instrument in our hands we got an immediate impression of the unit being very rugged. Its tight case together with the strong cable and its twin lemo locking connector allow the operator to focus only to the gauging without worrying at all about the machine.
J D Howard
I have used the gauges extensively, often in awkward places where the gauges often take a beating, as well as occasionally getting wet; but the Cygnus gauges have proven to be robust and reliable.
The 4+ meter is very light and easy to carry and has the option to use single crystal or twin crystal transducers, which allows me the ability to measure through thick coatings in deep coat mode, as well heavily corroded metals. When taking measurements with this meter I have found it to be accurate with repeatable results.
The 4+ gauges we use at JDH allow us to see a clear, simple A-Scan as measurements are taken - which in turn allows us to verify measurements. I can also log my measurement [together with the A-scans] and easily transfer them into reports for clients, which is very beneficial.
I am pleased to say that I have always received excellent service from Cygnus Instruments and I will continue to use their products, as I know I have a reliable, robust tool that I can genuinely trust.
We were asked to test the New Cygnus UTM Instruments 2+ and 4+, using their single and twin crystals probes.
Tests carried out in our premises on specially prepared samples and in real working conditions on a 15 years old dry cargo ship of 10.000 M.Tns.
Both instruments, apart they are well designed, they proved to be fast and accurate.
The gauging confirmation through the new measuring experience of MSI System, was a pleasant surprise.
User-friendly with high analysis full coloured LCD screen and very easy menu.
The strong tight case together with the strong cable and its twin lemo locking connector give the immediate impression of the unit being very rugged.
Very pleased with the instrument
This will certainly be useful in the inspection and maintenance of our shipping industry.
I love this machine. Even for corroded areas, it has proven to be reliable. I like the fact that you can change the Db settings to enable better penetration and sensitivity on corroded surfaces. We have to use Ex certified equipment in the offshore oil and gas industry which makes this UTM gauge ideal. I would give it an 8/10. (Only because it's design makes it awkward to use when the operator is using Rope Access as a means of carrying out the inspection.)
I really like this piece of equipment, very reliable, I do recommended to others, specially to use on oil and gas plants, I been using my for over 10 years, right now I'm looking forward to purchase a next one, probably I will go with same type since not really hard with calibration, is true a little awkward to use on such position, like hanging or under pipelines. But not a big deal.
Intrinsically Safe is reliable, easy to use and accurate
It is an old gauge (intrinsically safe) but keeps working well.