Prerequisites
The vessel is in dry dock. The SU90 system is turned off. The following tools and consumables are required:
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Plastic brush + Mild synthetic detergent |
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Fine‑grade sandpaper (240 inch grit size) |
NoteBecause some paint types may be aggressive to the polymer in the transducer, consult our list of approved anti-fouling paints.
Two persons are needed to do the task.
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One person must stay in the sonar room to operate the hull unit. |
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One person must stay in the dry dock, under the hull, to make sure that the transducer is not lowered too far down. |
Proper oral communication must exist between the sonar room and the dry dock personnel.
Context
The transducer is not designed with any protection against biological fouling. Anti-fouling paint may therefore be applied to the transducer face. To minimize the negative acoustical effects the layer of anti-fouling paint must be as thin as possible.
NoteThe use of anti-fouling paint will reduce the acoustical performance of the transducer. The properties of the transducer face combined with the thickness of the anti-fouling paint can also affect the overall performance. Kongsberg Discovery cannot be held responsible for any negative consequences of the anti-fouling paint.
Observe the relevant instructions and safety information provided by the paint manufacturer.
Further requirements
The contractor or shipyard must keep a daily paint log recording all relevant information from the surface treatment.