Furuno FSV-30S Hull Unit, Mounting considerations, Hull unit mounting location

1. MOUNTING THE EQUIPMENT

NOTICE

Do not apply paint, anti-corrosive sealant or contact spray to coating or plastic parts of the equipment.

Those items contain organic solvents that can damage coating and plastic parts, especially plastic connectors.

1.1 Hull Unit

Note 1: The raise/lower control box on the hull unit contains a motion sensor. Therefore, never drop the hull unit.

Note 2: Handle the transducer carefully. Shock will damage its sensitive components.

1.1.1 Mounting considerations

Decide the location of the hull unit through consultation with the dockyard and ship owner. When deciding the location, the following points should be taken into account.

•Choose an area where propeller noise, cruising noise, air bubbles and interference from turbulence are at a minimum. Generally, the point at 1/3 to 1/2 of the ship’s length from the bow on or near the keel is optimum. On-the-keel installation is advantageous for minimizing oil consumption in comparison with off-the-keel. If the hull unit can not be installed on the keel, the center of the retraction tank should be within 600 mm of the keel to prevent a rolling effect. For large ship with deep draft, the hull unit can be installed at the bow.

1/2 1/3 Within 600 meter

Hull unit mounting location

•Choose a place where the hull bottom is flat and the draft is sufficiently deep. Normally, the transducer should protrude at least 500 mm beyond the keel to minimize the effect of air foam and bubbles.

•Choose a place where interference from other transducers is minimal. The hull unit should be at least 2.5 m away from the transducers of other equipment.

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