Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications download pdf (Page 67)

Installation

20220760L 65

6.5 Transducers

Follow carefully the instructions that come with the speed/temp.

and depth transducers.

Mounting Guidelines

Depth Transducers

• The main source of the vessel generated noise is the propeller.

• The deeper the transducer projects the lower the risk of

aerated water.

• On displacement hulls place the transducer 1/3 aft along

waterline.

• Avoid locations near the keel or bow due to aeration.

• Mount the transducer on the side of the hull where the

propeller is moving downward.

• On sailboats mount forward of the fin keel, with minimum

dead rise.

• On planing vessels mount aft near the keel to insure water

contact at high speed.

• On I/O’s mount close to the engine.

• On inboards mount well ahead of the propeller.

• On higher speed vessels (+27 knots) mount in known good

locations.

• Do not mount near water discharge or behind struts or fittings,

which will create turbulence.

• For dead rise greater than 10 degrees a fairing is

recommended.

Speed Transducer

• On sailboats the sensor should be mounted close to the

centerline and 12 to 24” ahead of the keel.

• On displacement vessels the paddlewheel should be mounted

well aft so the sensor is always in contact with the water.

• Do not position the paddlewheel directly ahead of a depth

transducer.

• Do not locate the speed sensor behind struts or thru-hull

fittings.

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Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications Page 67