Kongsberg EM 122, Installation Manual

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Transducer arrays
Installation philosophy
The EM 122 system is supplied as a basic echo sounder with two relatively large
transducers. While the electronic units are installed using normal tools, the transducer
arrays must be located and installed depending on the vessel’s design. A number of
different factors related to the ship’s hull must be taken into consideration during the
installation planning.
The basic installation structures are:
• Gondola
• Blister
• Flush-mounted integrated into the hull
• Externally mounted with fairing(s)
The installation of the transducer arrays must thus be planned together with the
installation shipyard and/or the client.
Once the installation method is defined, the installation shipyard must provide the
necessary drawings. These drawings must be approved by the vessel’s classification
authority.
If required, Kongsberg Maritime can assist with the required engineering.
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