Raymarine ST50 plus Specifications download pdf (Page 22)

ST50 PLUS RADAR Operation and Installation Handbook

Section 2. Installation

If for some reason, NMEA 0183 data is not available from any Navaids

on the vessel, the radar can accept and operate in full function with the

Seatalk format.

2.4.2.2 Installing the XX Heading Sensor

The sensor should be placed in a location on the vessel where

magnetic interference is minimal and where it will remain undisturbed.

The optimum subject to minimum (pitch and roll) such as on a deck

close to the waterline. Flying bridge installations are not recommended.

On steel vessels however, the sensor may need to be mounted above

the deck enclosure on a mast and between one meter and three

meters from the main structure in order to minimize magnetic

disturbances.

Locate a suitable installation area, resonably free from magnetic

interference. Keep away from magnetic devices using coils,

transformers or other types of permanent and electrical magnets.

Examples: generators, motors, radio or radar receivers and

transmitters, loudspeakersand magnetic compasses etc. Minimum

mounting distances are shown below.

Minimum Mounting Distances

Radios, RDF, Depth Recorders etc.

3ft

meter)

Power Cables carrying mofe than 0.5 Amp.

3ft

meter)

Radar Magnetrons

9 ft (3 meters)

Ships Engines

3 ft

meter)

2. Each compass is accurately compensated at the factory, so the

more carefully you locate the sensor, the less compensation will

be required for heading errors introduced by the installation. Even

though the sensor is internally gimbaled, it should be mounted as

close to horizontal as possible. The sensor must never be

mounted on its side or upside down; i.e., the cable plate of the

sensor should be facing upwards. After selecting the best

possible location for the sensor, ensure that there is enough cable

provided for the installation.

Fig. 2-13

3. Before mounting the sensor, carefully align the arrow on the

sensor’s top parallel with the keel line of the boat. The arrow point

must be facing forward.

Fig. 2-14

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Raymarine ST50 plus Specifications Page 22

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