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The NAC-2 Autopilot Computer is the brains behind your autopilot system. NAC-2 contains the control algorithms developed to helm a yacht across a broad range of weather conditions and sea-states, alongside the electronics needed to operate a hydraulic or mechanical drive unit, while also interfacing with other components including heading sensors and rudder feedback units. The NAC-2 was designed for boats up to 10 metres (33 feet) in length and is suitable for low-current hydraulic drives, mechanical drives, or solenoid valves with a current rating of 8 Amps continuous (12 Amps peak).
The Precision-9 Compass
The Precision-9 Compass supplies heading and rate-of-turn information to Simrad, B&G and Lowrance autopilot, radar and navigation systems. Based on reliable solid-state sensor technology, this compact compass offers easy installation aboard any vessel.
- Heading, Rate Of Turn (ROT), roll, and pitch output over NMEA 2000®
- Heading and ROT calculated using sensor data from 9 axes of rotation and motion
- Accurate and reliable solid-state sensor technology
- Heading accuracy of ±2° after calibration
- Easily adjustable mounting bracket allows bulkhead or up-mast installation
- IPX7 waterproof. Best in class.
- Simple installation with a single NMEA 2000® connection
Mechanical/Environmental
Operating temperature -25°C to +55°C (13°F to 131°F) Protection Splashproof, IPx5 Weight 0.6 kg (1.3 lbs) Overall Dimensions Width: 7.1 in \ 180 mm Height: 2.2 in \ 57 mm Electrical
Power supply 9-31.2 V DC Load 140 mA + drive unit load Performance Drive: 8 A cont., 16 A for 1 s Interfaces
Network 1xMicroC (NMEA2000) Feedback Variable voltage/resistive 0-5V Drive output To PUMP-1 or HELM-1 Power supply 9-31.2 V DC Solenoid 12/24V DC, common, load range 10mA to 10A, off current <1mA Clutch 12/24V DC, min 10mA, max 3A Precision 9
Dimensions: H: 36 mm (1.42”), W & D: 119 mm (4.69”) Weight: Module:|165 g (5.8 oz), Bracket:|130 g (4.6 oz) Supply and interface: 8-16 V via NMEA 2000 Power consumption: 0.4 W NMEA 2000 Load Equivalence No. (LEN): 1 NMEA 2000 ports (input/output): 1 Calibration: Automatic (User Prompted) Repeatability: ± 1.0° (or better) Roll/Pitch range: ± 45° Heading accuracy: ± 2° after calibration Dynamic performance: with random excitation of ± 10° at max 1 Hz:|Heading error <2°: with heading step input of 90° at a rate of 10°/s: |Heading error 10 sec. after turn <2° Environmental protection: IPx7 Compass safe distance: 0.5 m (1.7’) Temperature range operation: -25 to +65°C (-13 to +149°F) Temperature range Storage: -30 to +70°C (-22 to +158°F)
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