Due to excess the salvage tug NORDIC is universally usable in every situation and show the wide range of application for our leak detection tool LD 300 in connection with an ultrasonic sender.

We are on-board the NORDIC, the most powerful emergency salvage tug in German waterways with a bollard pull of about 200t, more than 20.000 hp provided by two engines in a hull of 78m in length and 16 in width. If a ship strikes along the German coastline, it's often a question of minutes that decide between a happy ending and a catastrophe for the environment. A bad example of the past is the sinking of the PALLAS in 1998, when no such tug was around. We are talking about emergency salvage tugs, which are able to operate even in hazardous atmospheres.

Who's looking for leaks on-board the NORDIC doesn't fear the water

In duty since January 2011, the NORDIC is on standby 24/7 on her position about 10 miles north of Norderney. Equipped with her unique citadel, which includes the whole engine room, living area and bridge, the ship is able to operate in hazardous ares for up to 7.5 hours. Small excess of about 0.2 bar, supplied by 109 compressed air bottles, makes it possible to be independent of filtered air from outside. Using a channel system on-board, allows crew members to secure the connection to another ship or watch the operation. But how is it possible to monitor a citadel system like this? And how can you prove that no air leaks out of the citadel?

Detect leaks using an ultrasonic sender and sensor

Compared to industrial compressed air systems with closed pipe system and high pressure (>2 bar) the citadel system is kind of special in focus of leak detection. Based on specific ultrasonic sounds generated by leaking air under high pressure most leak detectors are not suitable for scenarios like this. To cover scenarios like this with our proven LD 300, wide areas of possible leakage with low pressure, we developed an ultrasonic sender especially for this field of application. Working like a speaker our sender generates an ultrasonic noise, infrasonic to human ears, inside the citadel. Set up like this, it's a simple look around with our LD 300 to make the leaking spot visible.

CS Instruments offers unique solutions

Developed under requirements of our customers it was once more a very welcome challenge for our team. Now extended by the ultrasonic speaker our LD 300 extended its field of application. Upcoming scenarios could be the detection of escaping heat flows in houses or office buildings. We are looking forward to your ideas and inquiries, your team of CS Instruments.

For more information please visit www.cs-instruments.com/int/