Kongsberg EM 2040 MKII, Installation Manual

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Rules for transducer handling
To secure long life and accurate results, the transducer must be handled correctly.
A transducer must always be handled as a delicate instrument. Incorrect actions may
damage the transducer beyond repair. Observe these transducer handling rules:
1 Do not activate the transducer when it is out of the water.
2 Do not handle the transducer roughly. Avoid impacts.
3
Do not
expose the transducer to direct sunlight or excessive heat.
4 Do not use high-pressure water, sandblasting, metal tools or strong solvents to
clean the transducer face.
5
Do not
damage the outer protective skin of the transducer.
6 Do not lift the transducer by the cable.
7 Do not step on the transducer cable.
8 Do not damage the transducer cable. Avoid exposure to sharp objects.
Cleaning and painting the transducer face
During normal use, the transducer is subjected to biological fouling. If this marine
growth is excessive, it will reduce the overall performance of your system.
The transducer has not been designed with any protection against biological fouling.
Whenever opportunity arise, typically when the vessel is dry-docked, the transducer face
must be cleaned for shells and other marine growth.
• Be careful so that you do not accidentally make cuts or inflict other physical damage
to the transducer face.
• Remove biological fouling carefully using a plastic brush, a suitable synthetic
detergent and fresh water.
Biological material which is strongly rooted in the substrate can be removed carefully
with a piece of wood or plastic.
• Do not use high-pressure water, sandblasting, metal tools or strong solvents to clean
the transducer.
Anti-fouling paint may be applied to the transducer face. To minimize the negative
acoustical effects the layer of anti-fouling paint must be as thin as possible.
Recommended procedure for painting is found here: Approved anti-fouling paints,
page 71
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.
Installing the transducer