Simrad ES60 - DATASHEET REV A, Руководство по установке, Страница: 112 / 162

Simrad ES60
TRANSDUCER INSTALLATION
The purpose of this chapter is to provide generic descriptions
and illustrations allowing the reader to understand the basic
principles for echo sounder transducer installation.
Note
The information in this document must be regarded as general
guidelines and recommendations only. The installation shipyard
must design and manufacture installation hardware to fit each
individual transducer and vessel.
Whenever required, the installation shipyard must also have the
installation approved by the applicable maritime authorities.
For detailed information about the transducer to be installed, refer
to the documentation provided with the transducer. Drawings
and descriptions can also be downloaded from www.simrad.com .
Topics
Transducer location
on page 110
Ways of mounting the transducer
on page 114
Cable glands
on page 136
Steel conduit
on page 140
Handling and maintenance
on page 141
Transducer location
A single answer to the question where to locate the transducer
cannot be given. It depends very much on the vessel’s
construction. However, there are some important guide lines.
Go deep
The upper water layers of the sea contain a myriad of small
air bubbles created by the breaking waves. In heavy seas the
uppermost 5 to 10 metres may be air- fi lled, with the highest
concentrations near the surface. Air bubbles absorb and re fl ect
the sound energy, and may in worst cases block the sound
transmission totally. Therefore, mount the transducer at a deep
position on the hull.
Consider the situation when the vessel is unloaded, and when it
is pitching in heavy seas.
WARNING
The transducer must never be lifted free of the
water surface.
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