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ATEX Ultrasonic Thickness Gauge Puts to Sea

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cygnus oct 19 1Cygnus Instruments makes the world’s only ultrasonic thickness gauge (UTG) that has been certified intrinsically safe to Zone 0.  And it is being chosen more and more by the marine industry.

Safety is of course the leading driver here, as Chris McChesney of Marine Technical Limits (MTL) explains: “as a leading FPSO integrity and repair management company, we ensure we are always meeting the highest possible standards.  On an FPSO, one is surrounded by confined spaces, Zone 0 and Zone 1 environments; so wherever relevant we will use ATEX equipment”.

“The Cygnus 1 Intrinsically Safe gauge is the perfect tool to have in the bag should any of our technicians identify areas suspected of exceeding corrosion limits.  It is lightweight, rugged and really easy to use.  So it provides that extra information - with no fuss”.

As with all Cygnus ultrasonic thickness gauges, the Cygnus 1 Intrinsically Safe UTG uses the Cygnus multiple-echo technique which provides the most accurate and reliable thickness measurements and will read through (“ignore”) coatings.

The Cygnus “I.S”, as it is known to many, is certified intrinsically safe to ATEX Marking Group I & Group II; CSA Class 1 Group A, B, C & D Division 1; IECEx Ex ia IIC T2/T3/T6 Ga, Ex ia I Ma means that the Cygnus 1 Intrinsically Safe thickness gauge is ideal for use in Zone 0, Zone 1 hazardous areas and requires no plant shutdown or hot work permit.  In addition to being invaluable inspection tool on LPG vessels and FPSOs, in oil & gas production facilities, the gauge has also been approved for use in mines.

For further information, please phone us on +44 (0)1305 265533 or visit
To be in touch with MTL, please phone +44(0)1467 424000 or visit