Installation manual

Introduction
General installation requirements
The following installation requirements are applicable to this
Simrad ES60 Fish finding echo sounder delivery.
Approval by classification society
The ES60 Fish finding echo sounder transducer installation
must be approved by Det Norske Veritas (DNV) or another
classification society. The s hipowner and shipyard performing
the installation are responsible for obtaining installation approval.
Supply power
The supply voltage to the equipment is to be kept within ±10% of
the installation’s nominal voltage. Maximum transient voltage
variations on the main switchboard’s bus-bars are not to exceed
-15% to +20% of the nominal voltage (except under fault
conditions).
Simrad recommends that the ES60 Fish fi nding echo sounder is
powered using an Uninterruptable Power Supply (UPS). The
UPS should have the capacity to independently maintain power
to the system for a minimum of 10 minutes. This ensures that the
system can be switched off i n a controlled manner in the event
of a power failure.
Compass deviation
Once the installation i s complete, the vessel must be swung with
the system in both the operative and inoperative modes. The
shipowner and captain are responsible for updating the deviation
table 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 sonar trunk and/or
protection blister is provided when dry docking the vessel. Avoid
locating supporting blocks or structures in the vicinity of this
equipment.
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