LT-1000 NRU

The LT-1000 Navigation Reference Unit (NRU) is a maritime heading sensor with built-in GNSS/GPS receiver from Lars Thrane A/S. The LT-1000 NRU is designed for the leisure as well as the professional maritime markets. The LT-1000 unit meets all standards and certification requirements needed for worldwide maritime navigation equipment.

PERFORMANCE

The LT-1000 NRU is a small, compact, and very advanced unit with 12 precision sensors (magnetometers, gyros, accelerometers, barometer, thermometer, and GNSS/GPS receiver). With the use of sensor-fusion and Kalman filtering, the LT-1000 NRU outputs: true heading, roll, pitch, position, ground speed, course over ground, air pressure, and temperature in real-time, with high precision and resolution. The LT-1000 NRU includes advanced technologies such as :

• Kalman filtering.
• Calculation of magnetic variation based on the World Magnetic Model (WMM).
• Compensation of soft and hard iron (deviation).
• Built-in magnetometer calibration algorithm.
• Receive and track multiple satellite systems (GPS, GPS & GLONASS, or GPS & BeiDou).
• Support for Satellite-Based Augmentation System (SBAS): EGNOS, WAAS and MSAS.

The LT-1000 NRU makes use of the latest technology within GNSS/GPS receivers, with market leading acquisition and tracking performance.

The LT-1000 NRU is designed and built for the demanding and rough environment at sea and with an operational temperature range from -40?C to +55?C (-40?F to +131?F).

INSTALLATION & NAVIGATION

The LT-1000 Navigation Reference Unit is easy to mount on a 1” pole (optional installation: roof mount) with a single cable supporting NMEA 0183, NMEA 2000, and power. The built-in magnetometer calibration algorithm will quickly compensate for heading deviation, and the LT-1000 NRU will output reliable navigation data. An external PC installation and service software is available for optional configuration and maintenance of the LT-1000 NRU.

More than 40 years of experience have been put into the design and construction of the advanced LT-1000 NRU, with an exceptional performance and specification level.

Key Features :

• Navigation Reference Unit with 12 precision sensors.
• True heading, magnetic heading, deviation, variation, roll, pitch, UTC time and date, position, satellite information, ground speed, course over ground, air pressure and temperature.
• 72-ch. GNSS (GPS/GLONASS/BeiDou) satellite receiver with SBAS corrHection.
• Standard (figure 8-pattern) and Adaptive deviation calibration algorithm.
• Simultaneously NMEA 0183 and NMEA 2000.
• Configurable NMEA 0183 sentences (enable/disable, talker ID, output rate).
• Easy configurable NMEA 2000 termination resistor (open or terminated).
• Easy configurable NMEA 0183 data rate (4800 or 38400 baud).
• Each unit is factory calibrated and functional tested over temperature prior to shipment.
• Worldwide maritime certification.

Specifications :

• Certification & standards: CE, IEC 60945, IEC 60950, EN 300440-2, FCC, IC, RCM, RoHS, NMEA 0183, NMEA 2000.
• Dimensions, with pole mount: 151.4 x 81.65 x 128.0 mm (5.96 x 3.21 x 5.04 in.).
• Weight, with pole mount: 240 g (0.53 lbs).
• Temperature (ambient), operational: -40°C to +55°C (-40°F to +131°F).
• Temperature (ambient), storage: -40°C to +85°C (-40°F to +185°F).
• Waterproof: IP46 / Humidity: 95% non-condensing @ 40°C..
• Communication Interface: 8-pin female connector for NMEA 0183, NMEA 2000 and power.
• Input power: 9-40 VDC.
• Power consumption: < 1W.
• Load Equivalent Number (LEN) : 2.
• Compass safe distance: 0.3 m (1 ft).

In The Box :

• LT-1000 NRU.
• Pole & Roof Mount.
• 10m Cable Multi 8-pin Simple-Cut (M).
• Screw-in Conn. NMEA 2000 Micro-C (M).
• Quick Installation Guide.
• Safety Instructions Sheet.
• Unit Test Sheet.

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