Installation manual

Simrad PI54
6
851-165187 / Rev.A
General installation requirements
Responsibility and approval
The Simrad PI54’s hydrophone and echo sounder installation
must be approved on a case-by-case basis with regard to the
vessel’s national registry and corresponding maritime authority.
The shipowner and shipyard performing the installation are
responsible for obtaining installation approval.
Environmental requirements
All equipment, unless otherwise specified, must be protected
from temperature extremes and excessive humidity.
Compass deviation
Once the installation is complete, the vessel must be swung with
the PI54 system in both the operative and inoperative modes.
The shipowner and captain are responsible for updating the
deviation t able accordingly with regard to the vessel’s national
registry and corresponding maritime authority.
Noise sources
The vessel’s hull, rudder(s) and propeller(s) should be
thoroughly inspected in dry dock prior to installation.
Roughness below the water-line deformities in the shell plating
and protruding obstacles can create underwater noise. These
sources of turbulence must be smoothed or removed as best as
possible. It is especially important that the propeller(s) is not
pitted or damaged.
Dry docking
Make sure that ample clearance under the hydrophone and echo
sounder transducer is provided when dry docking the vessel.
Avoid locating supporting blocks or structures i n the vicinity of
this equipment.
Note: The location of the hydrophone and echo sounder transducer
must be noted on the vessel’s docking plan for future reference.
Wiring
The cables from the wheelhouse to the hydrophone and echo
sounder transducer must be supported and protected along its
entire length using conduits and/or cable trays. Note that the
cables must not be installed in the vicinity of high -power
supplies and cables, antenna cables or other possible sources of
interferences.