Connect the power cable. North Star 10 kW, 25 kW

Ideally, the compass should draw less than 100 mA. (If this is not possible, power the compass using a separate 12 V source.)

12.12 Connect the power cable

The power cable to the radar processor is NOT supplied for either the 6000i or 6100i system or the

8000i system. Power must be supplied through a fuse/breaker element located at the power source end of the power cable.

Check the system specifications section for the recommended DC input voltage.

The power cable and fuse requirements are shown in the table.

Scanner

2 kW

4 kW

6 kW

10 kW

25 kW

Fuse/Circuit breaker rating

Maximum length of power cable

5 A

10 A

10 A

15 A

15 A

33 ft (10 m)

26 ft (8 m)

26 ft (8 m)

26 ft (8 m)

26 ft (8 m)

Power cable size

14 AWG

14 AWG

14 AWG

12 AWG

12 AWG

Typically the fuse /breaker would be located in a fuse/breaker box with the fuses/breakers for other devices.

The radar processor must have it's own exclusive fuse/circuit breaker. The fuse/circuit breaker should be labeled appropriately.

To connect the power cable to the radar processor, you must:

1. Strip away approximately 0.4" (10 mm) of the shielding at the end of the power cable, and then identify the positive wire and the negative wire.

2. Unscrew the small holding screw from the positive power cable input connector (identified by the + sign) on the radar processor.

3. Insert the bare ends of the positive wire into the positive power cable input connector to make a connection.

4. Tighten the small holding screw to hold the positive wire in place. Gently pull on the positive wire to ensure that it is secured.

5. Repeat this process to connect the negative wire to the negative power cable input connector (identified by the – sign).

12.13 Connect the ground wire

The radar processor has a Chassis Earth connection stud located on the far right hand side of the unit.

The Chassis Earth is DC isolated from power (–ve) to eliminate the risk of galvanic corrosion.

If you are installing the radar processor on a vessel with a metal hull, connect the radar processor

Chassis Earth to the hull at the closest possible location, using 12 AWG wire (or thicker):

Northstar 25 kW Radar Installation Manual 37