Raymarine ST30 Specifications download pdf (Page 17)

ST30 Bidata Operation and Installation Handbook

2.4 Installation

The depth and speed transducers are supplied with detailed installation

and maintenance instructions. These instructions, together with following

notes, should be read thoroughly before attempting to install the

transducers.

Speed transducer (through hull)

For accurate speed readings, locate the speed transducer in the shaded

''clear flow' areas as shown.

D587

The transducer should also be:

• ahead of propellers (10% W.L. length minimum)

• at least 150mm (6in) from the keel (with sailing yachts siting should be

forward of the keel)

• near the centreline of the vessel

• clear of other through hull fittings or projections

• have sufficient clearance inside the hull to allow the nut to be fitted

• have 100mm (4in) clearance above the through hull fitting for

withdrawal

Note:

The speed transducer can, if required, be shortened. However, new

1/8in spade connectors must be crimped to the shortened cable.

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Raymarine ST30 Specifications Page 17