Raymarine Radar Scanner Manuel Du Propriétaire

Page de 66
34
Pathfinder Radar Scanners
2.3 System connections
DC power connection
Power is supplied to the scanner via the display unit; the power cable 
is supplied with the display unit, refer to your display unit Owner’s 
Handbook 
for details on connecting power. However, you should be 
aware of the following.
The DC system should be either:
Negative grounded, with the negative battery terminal connected 
to the ship’s ground.
Floating, with neither battery terminal connected to the ship’s 
ground.
CAUTION:
This radar is not intended for use on “positive” ground vessels.
The power cable Earth screen connections must be connected to 
the ship’s ground.
Grounding the radar system
It is important that an effective RF ground is connected to the radar 
system. You must ground the radar by connecting the drain wire 
(screen) of the Power/NMEA Input cable to the nearest ground point 
of the ship’s RF ground system. Refer to your display unit Owner’s 
Handbook 
for details. 
Note: Use only this ground connection.
Power Connections
The power connection to the radar should be made at either the output 
of the battery isolator switch, or at a DC power distribution panel. 
Raytheon recommends that power is fed directly to the radar via its 
own dedicated cable system and MUST be protected by a thermal 
circuit breaker or fuse, fitted close to the power connection. Refer to 
the table below for isolator switch, circuit breaker or fuse value 
ratings. Check all terminal connections are clean.
154_4.book  Page 34  Wednesday, October 25, 2000  3:02 PM