Lars Thrane LT-500 AHRS

Lars Thrane

Lars Thrane LT-500 AHRS (Attitude Heading Reference System) unit is a maritime navigation heading sensor / electronic compass from Lars Thrane A/S. The LT-500 AHRS unit is designed for the leisure as well as the professional maritime markets. The LT-500 unit meets all standards and certification requirements needed for worldwide maritime navigation equipment.

The LT-500 AHRS unit is a small, compact, and very advanced unit with 11 precision sensors. With the use of sensor-fusion and Kalman filtering, the LT-500 AHRS unit outputs: true heading 1,magnetic heading, deviation, variation 1, roll, pitch, air pressure, and temperature real-time, with high precision and resolution.  The LT-500 AHRS is easy to mount with a single cable supporting NMEA 0183, NMEA 2000, and power. Without compromising the high performance, the LT-500 AHRS may be installed in any orientation. The LT-500 AHRS has a built-in user interface (display and buttons) for installation and service.

Navigation output from the LT-500 AHRS is available in the user interface. The LT-500 AHRS supports automatic leveling (pitch and roll), used during the installation. To compensate for deviation the LT-500 AHRS must perform a figure 8-pattern calibration. Use the LT-Service Tool for optional configuration of the LT-500 AHRS. The LT-Service Tool is a PC program, which may run on any Windows PC.

 

More than 40 years of experience have been put into the design and construction of the advanced LT-500 AHRS, with an exceptional performance and specification level.

 

Key Features

  • 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

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