Sperry Marine Compass Navigat 3500

Details

Networked Fiber Optic Gyro Compass & Motion Reference Unit

The Navigat 3500 is a state-of-the-art fiber optic gyro (FOG) compass system and motion reference unit, delivering exceptional accuracy, reliability, and maintenance-free operation for modern vessels. Fully integrated into the CompassNet heading management system, it offers a scalable and networked solution designed for high-performance navigation and mission-critical applications. With its solid-state technology and absence of moving parts, the Navigat 3500 represents the next generation of gyro compass systems, combining maximum precision with minimal lifecycle costs.

Maintenance-free solid-state technology

Based on fiber optic gyro principles with no moving parts, eliminating wear and significantly reducing maintenance requirements over the entire service life.

Highest accuracy and dynamic performance

Provides heading accuracy of up to ≤ 0.15° (secant latitude, RMS) along with precise roll, pitch, rate of turn and heave data, it is ideal for demanding navigation and DP applications.

No north speed error

Unlike mechanical gyro compasses, the FOG technology is not affected by speed or latitude errors, ensuring consistent and reliable heading information, even at high latitudes.

Fast start-up and settling time

Initial settling within approx. 5 minutes and full accuracy achieved shortly after, enabling rapid deployment and operational readiness.

Integrated motion reference unit (MRU)

Delivers comprehensive motion data (roll, pitch, heave, rates), supporting advanced navigation, dynamic positioning and offshore operations.

Networked CompassNet architecture

Seamless integration into CompassNet allows multi-sensor configurations, redundancy setups, and connection with legacy or third-party systems.

Low lifecycle costs

Maintenance-free design and high MTBF of approx. 150,000 hours ensure long service life and reduced operational expenditure.

Compact and easy installation

Small footprint, low weight and reduced cabling requirements enable fast installation and flexible integration in both newbuild and retrofit projects.

Technical informations:

Heading: 0.15 degrees seacant latitude (RMS)
Rate of turn: 0.06 degrees/ minute
Roll and pitch: 0.1 degrees (RMS)
Heave: 0,1m | 10% (whichever is higher)
Settling time: 5 minutes (initial) + 25 minutes (fine)
Range: Heading 0 to 360°; Roll -180° to +180°; Ptch -90° to +90°
Export: Dual use
Mean Time between Failures: 150000 hours
Sensor outputs:11x data output (IEC61162-1/2), 8x Repeater, 1x NAV printer, 8x serial input, 1 x Bi-directional INS IEC 61924-2
Analogue output: 1x +/+ 10V Rate of Turn output | 1x Fluxgate input