Kongsberg EM 710, Installation Manual

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Transducer arrays
For the principles, see Blister and steel pipe arrangements
(example) on page 34
The steel conduits must be designed to fit each individual vessel.
They are not included with the system delivery. The steel
conduits must therefore be both provided (or manufactured)
and installed by the installation shipyard. The number of steel
conduits depends on the chosen system configuration and the
internal diameter of the conduits.
• a 0.5° x 1° system (2 TX1 modules and 1 RX1 modules)
requires two Tx conduits and one Rx conduit.
• a 1° x 1° system (1 TX1 modules and 1 RX1 modules)
requires one Tx conduits and one Rx conduit.
• a 1° x 2° system (1 TX1 modules and 1 RX1 modules)
requires one Tx conduits and one Rx conduit.
• a 2° x 2° system (1 TX1 modules and 1 RX1 modules)
requires one common Tx and Rx conduit.
4.4.1 Logistics and references
Safety - Refer to the general safety procedures.
Qualifications - Mechanical workers
Ship location - Dry dock
Special tools - None
Drawings
Installation drawings on page 109
4.4.2 Procedure
How to mount the steel conduits
1 Design the steel conduits with appropriate length and
diameter to fit the echo sounder.
2
Mount the steel conduits from the vessel hull and up towards
the sonar room and the EM 710 Transceiver Unit.
• The steel conduit(s) should have an outer diameter
of approximately 219 mm and an inner diameter of
approximately 197.0 mm.
• The steel conduits are laid as required by the vessel
structure and the location of the blister and sonar room.
The conduits may be bent if required, but not more than
30 degrees. Note however that one or two sharp bends on
the conduits may require a larger diameter.
• The upper opening of the steel conduits should be above
the vessel’s water line. If the openings of these conduits
are under the water level, then special acceptances are
needed from the classification soc.
164851/C
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