Installation manual

Simrad PI54
32
851-165187 / Rev.A
Physical location
The blister is placed on one of the sides of the hull, and the
distance from the keel is a trade off between a close distance
giving a turbulent flow of water in a narrow passage, and a l arge
distance bringing the transducer higher up and also more
affected by vessel roll. Normally a distance of approximately
1 m is a good compromise.
Observe the horizontal and vertical distances (X and Y) between
the keel and the transducer blister. On a medium sized vessel,
the horizontal distance (X) should be approximately 1 meter.
The vertical distance (Y) must in general be as small as possible.
This is important to prevent the keel from shadowing the
transducer beam in shallow waters.
(A) = Keel
(B) = Transducer blister
(X) = Horizontal distance between keel and blister
(Y) = Vertical distance between the blister surface and the keel