NAVIGAT 2500 Gyro Compass


NAVIGAT 2500 Gyro Compass

Fiber Optic Gyro Compass Solution

Long term reliable operation for lower cost.

Our unique low drift, fast settling networked fiber optic gyro compass provide operators with a highly reliable heading sensor in a highly competitive priced compass system package. Maintenance free strap-down FOG technology forgoes the need for moving parts or expensive configuration. Delivering our longest running system endurance to date at a MTBF of 150,000 hrs, wherever you are heading, you can be confident Sperry Marine will get you there safely, reliably and cost effectively.

Key Features:

  • DNV-GL and BV MED type approved heading (standard and high speed craft)  and rate of turn sensor
  • No moving parts
  • Fast start up for flexible operation patterns
  • Very high reliability for improved operational safety and availability
  • Fully integrated in Heading Management System CompassNet
  • Scalable system with open platform to integrate existing sensors
  • Small size and low weight provide easy and flexible installation options

Key Benefits:

  • Maintenance-free FOG sensor
  • No export restrictions, immediate availability
  • Highly competitive price point and fast return on investment
  • Very low total cost of ownership
  • 5 year warranty included
  • Turn on and go
  • Upgrade path to digitalization

Recommended for following vessel segments:

Container, Tanker, Bulker, Ferries, Fishing, Police and Patrol Boats, Workboats, HSC

Proven Reliability, Low Maintenance

The NAVIGAT 2500 fiber optic gyro compass system is maintenance free (MF) meaning regular maintenance or calibration is not required. The fiber optic gyro compass has no moving parts and does not rely on inertial resistance to any movement. NAVIGAT 2500 is based on long proven technology applied to harsh environments and hence, the most reliable and affordable alternative to the mechanical gyro compass. In addition, the NAVIGAT 2500 does not fall under any export restriction and is available for immediate delivery and installation. It is the perfect fit for all vessels operating on tight schedules requiring high reliable heading sensors with minimal service effort at a highly competitive price point.


NAVIGAT 2500 CompassNet Specifications

NAVIGAT 2500 Gyro Compass

The NAVIGAT 2500 fiber optic gyro compass model has a clear advantage over spinning mass gyro compass models as it has no moving parts, no maintenance during service life, no north speed error, a short settling time and output for roll and pitch.

Safety is increased as a result of the high dynamic accuracy associated with the lack of north speed error. This is particularly valuable for high-speed craft at high latitudes during frequent maneuvers.

NAVIGAT 2500 CompassNet specifications:

  • Sensor performance:

Heading                          ≤ 0.7 deg secant latitude RMS
Rate of Turn                   ≤ 0.06 deg/ min
Roll/Pitch angle            ≤ 0.5 deg RMS

  • FOG technology with High Mean Time Between Failure (MTBF) of 150,000 hrs and long lifetime
  • Power supply: 24 VDC main and back-up
  • Common user interface device NAVITWIN V to setup entire compass system
  • 12 sensor data outputs, configurable to user needs, incl. Printer output functionality
  • 8 repeater ports providing serial sensor data and power supply for heading repeaters
  • One analogue rate-of-turn output
  • One bi-directional INS compliant interface acc. IEC 62924-2
  • Fluxgate or serial input for connection of magnetic compass
  • 8 serial inputs for GNSS, Speed Log, Rudder Angle, Set Heading
  • All required alarm interfaces, serial and dry contact
  • DNV-GL and BV MED type approved Heading Sensor (standard and high speed application) and Rate of Turn Indicator System (acc. ISO 8728, 16328, 20672)

Fiber Optic Gyro Compass System

NAVIGAT 2500 Gyro Compass


The highly reliable Fiber Optic Gyro Compass (FOG) provides a compact AHRS (Attitude and Heading Reference System) that offers simplicity of use and reliability with a very fast return of investment.

Standard Features

NAVIGAT 2500 CompassNet features include the provision of heading, rate of turn and roll and pitch data, with an initial settling time of 5 minutes and fine settling within a maximum of additional 25 minutes. The FOG sensor’s solid state nature is unaffected to speed / latitude error and integrated with CompassNet provides 12 serial interfaces for heading repeaters plus 6 serial interfaces for heading receivers and analogue outputs.

The NAVIGAT 2500 is fully integrated with Sperry Marine’s redundant CompassNet Heading Management System. The open platform approach, that allows integration of up to four heading sensors, provides the option to integrate legacy products like NAVIGAT 2200, NAVIGAT 3000 or NAVIGAT X MK1 in combination with NAVIGAT 2500. In addition, it is possible to integrate third party heading sensors with standard serial NMEA-0183 interface.

Easy Onboard Installation

The NAVIGAT 2500 is a small size and low weight unit and its standard installation tray provides for easy and flexible onboard installation. Due to the network approach of NAVIGAT 2500 CompassNet, the system installation time can be reduced up to 50% in comparison to legacy configurations or third party systems and in addition saves up to 80% of wiring. Following the full integration approach, the system will be set up through one common user interface device, the NAVITWIN V CDU, which reduces the commissioning effort further.

Compass Systems