Onwa Marine Electronics KAP-866 - Manual (Page 29)

3.3.2 Installing an indoor magnetic sensor unit (KFG-25)
The compass unit should be treated carefully as the internal gimbals can be
broken if dropped. Remove any internal packing before use.
The position of this compass is the most important item in the installation of
the autopilot. Good course holding depends on the compass being free from
magnetic interference.
As this compas s has no moving card, it is not necessary for the compass to be
mounted low in the vessel. This is usually a place of high magnetic interference
and should be avoided. However, a position of severe roll such as the top of a
mast should also be avoided.
The compass need not b e mounted in a weatherproof position. The compass
can be mounted on top of a flat surface, on a bulkhead or from the deck head.
Check other side of bulkhead for materials, which may cause magnetic
interference.
Interference from any iron or steel can cause malfunction of the compass unit.
To prevent this occurring a minimum distance of 1 meter(3 feet) should be kept
from any steel or other ferromagnetic materials. This includes speakers and
radios with internal speakers.
Fasten the compass bracket with non-magnetic screws. The compass must be
mounted in a near vertical position.
Desktop mounting
To ensure the signal of sailing directions is accuracy, please choose a locat-
ion where vibration and shock are minimal.
only suitable for fiberglass or wooden vessel.
Installed in the surface of platform
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