Simrad ES120-7C - REV D, Руководство по установке, Страница: 21 / 98

330254/B
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Context
The transducer has not been 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.
Note
The anti-fouling paint will reduce the acoustical performance of the transducer. The
surface roughness of the transducer substrate and the thickness of the paint may also
influence the performance. Kongsberg Maritime 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.
Procedure
1 Clean the transducer thoroughly.
Make sure that you remove all oil grease residues, as well as salt and other
contamination.
2 Allow the transducer surface to dry.
3 Abrade the transducer surface using a sanding paper with 240 inch grit size.
Do not exceed a surface roughness (R
max
) of 35 microns as this can influence the
ES120-7C performance.
4 Remove all dust.
5 Apply the primer, and let it dry.
6 Apply the paint.
Observe the instructions provided by the paint manufacturer. Use airless spray. Apply
the minimum specified film thickness per coat and for the complete layer. It is not
possible to measure dry film thickness on transducer surface. You must therefore use a
wet film gauge to frequently measure the paint thickness.
Note
We strongly recommend that you do not use a paintbrush and/or a roller.
7 Allow the paint to dry.
Further requirements
The contractor or shipyard must keep a daily paint log recording all relevant information
from the surface treatment.
Transducer handling and maintenance