Kongsberg EM 710, Installation Manual

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Installation examples
5 INSTALLATION EXAMPLES
This chapter provides a number of examples for transducer array
installation. Installation procedures are also defined.
Topics
• Transducer blister on page 43
• Gondola on page 45
• Flush mount on page 46
• Fairing on page 47
• Steel box on page 47
5.1 Transducer blister
The transducer arrays should be mounted underneath the vessel.
To achieve this, you can design and manufacture a streamlined
transducer blister, and mount it under the vessel’s hull. This is a
well proven way, when refitting a vessel with a EM 710 system.
Refer to Hatches for access to the steel conduits (top view) on
page 44 for the principles.
Note
The inside surface of the blister must be protected with
appropriate protective paint and an adequate amount of zinc.
5.1.1 Logistics and references
Logistics and references
Logistics and references Safety - Refer to the general safety
procedures.
Personnel
- Trained mechanical workers
Ship location - Dry dock
Special tools - Torque wrench
Protection
- Protective paint, zinc anodes
References - None
Procedure
1
Design and manufacture the transducer blister.
• The blister must hold the two casings; one for the Tx
and one for the Rx transducer arrays. The appropriate
drawings describing these casings are included in the
Drawing File.
• The blister will be water filled. To let the air escape, make
a suitable hole in the rear end close to the vessel’s hull.
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