Raymarine ST60 用户手册

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Chapter 3: Installation
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CAUTION:  
The presence of moisture at the rear of the instrument could cause 
damage either by entering the instrument through the breathing 
hole or by coming into contact with the electrical connectors.
ST60 instruments can be fitted either above or below deck, provided the rear of 
the instrument is sited where it is protected from contact with water.
Each instrument must also be positioned where:
• It is easily read by the helmsman
• It is protected against physical damage
• It is at least 9 in (230 mm) from a compass
• It is at least 20 in (500 mm) from radio receiving equipment
• There is reasonable rear access for installation and servicing
EMC installation guidelines
All Raymarine equipment and accessories are designed to the best industry 
standards for use in the recreational marine environment.
Their design and manufacture conforms to the appropriate Electromagnetic 
Compatibility (EMC) standards, but correct installation is required to ensure that 
performance is not compromised. Although every effort has been taken to ensure 
that they will perform under all conditions, it is important to understand what 
factors could affect the operation of the product.
The guidelines given here describe the conditions for optimum EMC performance, 
but it is recognized that it may not be possible to meet all of these conditions in all 
situations. To ensure the best possible conditions for EMC performance within the 
constraints imposed by any location, always ensure the maximum separation 
possible between different items of electrical equipment.
For 
optimum
 EMC performance, it is recommended that 
wherever possible
:
• Raymarine equipment and cables connected to it are:
• At least 3 ft (1 m) from any equipment transmitting or cables carrying 
radio signals e.g. VHF radios, cables and antennas. In the case of SSB 
radios, the distance should be increased to 7 ft (2 m).
• More than 7 ft (2 m) from the path of a radar beam. A radar beam can nor-
mally be assumed to spread 20 degrees above and below the radiating 
element.
• The equipment is supplied from a separate battery from that used for engine 
start. Voltage drops below 10 V in the power supply to our products, and 
starter motor transients, can cause the equipment to reset. This will not dam-