34 equipment & cabling update
Fig. 2. Panther-XT Plus: unrivalled for speed and work
task capability.
➠
Specialist contractor, DOF Subsea, has now taken
delivery of a Cougar XTi, which is destined for Brazil.
Fig. 3. Cougar-XTi: intelligent light-work ROV.
For DOF Subsea, the Cougar will add to the company’s
extensive capability in providing construction and full range of brightness and retains a constant colour
engineering, IRM, ROV and survey support services to the temperature over the range compared with tungsten
world’s major subsea markets. halogen, which varies considerably when dimmed.
DOF Subsea employs over 800 highly qualified staff
and own state-of-the art equipment including 26 offshore
Low power consumption
construction, diving and ROV support vessels, 37 ROVs, Rated at 6000 metres, the new LED light joins Saab
1 AUV and 11 diving spreads. Seaeye’s 3000 metre rated technologically
It will be permanently commissioned aboard advanced range of LED lights especially developed
a specially built DOF Subsea vessel, along with to bring extra reliability, low power consumption
two hydraulic work-class vehicles. and greater luminosity to underwater systems.
The vessel has been constructed in Norway This means that in addition
and will operate offshore in Brazil for to bringing greater luminosity
Light Well Intervention. Saab Seaeye’s performance to ROV operations,
managing director, underwater system developers
Dave Grant says, “The Cougar XTi worldwide can incorporate this
opens up a whole new market for the range in other underwater
concept of a combined inspection and equipment designs such as
light work-ROV. Providing operation diver equipment, as it has a
to 3000m depth the Cougar XTi can universal power interface that can
either perform tasks independently take a wider range of power
or provide support for the work of
Fig. 4. World’s coolest-running 6000
options than any other LED
construction class hydraulic ROV’s. It
metre LED light.
light. A mounting arrangement
also brings important cost savings in to provide horizontal and vertical
deck space and can be provided with adjustment of the light position
a compact single skid solution for the LARS (Launch and is also provided.
Recovery System).” Dave McInnes, Saab Seaeye’s electronic design
engineer behind the concept, says the new LEDs are far
LED light
superior to both halogen and incandescent lamps.
Meanwhile, the coolest-running deep-rated LED light in ‘They use a quarter of the power, have a life of over
the world has been developed by Saab Seaeye. The super- 50 000 hours compared to 1000 hours for halogen and
intensity low power light comes with a design of thermal give higher luminosity than a 150 watt bulb – with a
control that avoids failure through overheating. No other daylight white for more accurate colour rendering of
LED light has this capability. video images than the typical ‘yellow light’. Important too,
Telemetry or PWM controlled, it monitors its status adds McInnes, is they are more robust than other lighting
and gives data feed-back on current, input supply systems.
voltage, LED voltage, LED temperature and light output The new range of LED lights is being fitted to all Saab
percentage, so is ideal for providing data for the Seaeye ROV systems. l
diagnostic capability of the new generation of control
systems. Saab Seaeye Limited is based in Fareham, Hampshire, UK.
The LED light brightness can be controlled over its
www.seaeye.com
www.engineerlive.com
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