FURUNO DS-80 DOPPLER SPEED LOG

Manufacturer Information

Manufacturer: Furuno Electric Co., Ltd.

Country of Origin: Japan

Equipment Type: Doppler Speed Log System

Marine Application: Vessel Speed Measurement, Distance Tracking & Navigation Data Distribution

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Product Introduction

The FURUNO DS-80 Doppler Speed Log is a professional marine navigation sensor designed to provide highly accurate vessel speed and distance information for commercial ships operating worldwide.

Using Doppler sonar technology, the DS-80 measures vessel movement relative to the seabed or water mass and continuously provides speed and distance data to onboard navigation systems.

The DS-80 is widely used onboard:

• Cargo Ships
• Bulk Carriers
• Container Ships
• Oil Tankers
• Chemical Tankers
• LNG/LPG Carriers
• Offshore Support Vessels
• Passenger Ships

The system is recognized for its reliability, precision, and long-term marine performance.

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What Is FURUNO DS-80?

The DS-80 is a Doppler Speed Log system that calculates vessel speed by transmitting acoustic signals toward the seabed or water and measuring frequency changes in the reflected signals.

The system provides:

• Speed Through Water (STW)
• Speed Over Ground (SOG)
• Distance Travelled
• Navigation Data Output
• Motion Information
• Speed Input for Navigation Systems

The DS-80 continuously supplies critical speed information to other bridge systems.

The equipment can interface with:

• ECDIS
• Radar
• AIS
• Autopilot
• Voyage Data Recorder (VDR)
• Integrated Navigation Systems

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Main Features

High Accuracy Speed Measurement

Provides accurate speed data even during changing sea conditions.

Doppler Technology

Uses advanced Doppler signal processing for reliable vessel motion calculation.

Continuous Distance Recording

Tracks total distance travelled by the vessel.

Digital Display

Provides clear real-time speed and distance information.

Multi-System Integration

Supports navigation data sharing with multiple bridge systems.

Marine-Grade Construction

Designed specifically for continuous marine operation.

Reliable Navigation Input

Provides important speed data used by modern navigation systems.

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Main Components

1. Display Unit

Provides speed, distance, alarm, and status information.

2. Processing Unit

Calculates speed data from Doppler signal inputs.

3. Transducer Unit

Mounted below the vessel hull to transmit and receive acoustic signals.

4. Interface Module

Transfers speed information to connected navigation systems.

5. Power Supply Section

Ensures stable operation of the speed log system.

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Applications

The FURUNO DS-80 is commonly used for:

• Ocean Navigation
• Coastal Navigation
• Harbor Operations
• Dynamic Positioning Support
• Voyage Monitoring
• Speed Monitoring
• Distance Tracking
• Navigation Data Distribution

The system plays an important role in safe vessel navigation and maneuvering.

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Importance of Doppler Speed Logs Onboard Ships

Modern vessels rely on accurate speed information for safe navigation.

Without reliable speed data:

• ECDIS Performance May Be Affected
• Autopilot Accuracy May Decrease
• Voyage Monitoring Becomes Less Reliable
• Navigation Calculations May Be Incorrect
• Fuel Efficiency Analysis May Be Reduced

The DS-80 helps ensure accurate navigation and vessel performance monitoring.

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Common Problems & Troubleshooting

No Speed Indication

Possible Causes:

• Transducer Failure
• Signal Processing Error
• Power Supply Problem

Solution:

• Inspect Transducer Condition
• Verify Power Supply
• Check Processing Unit Status

Incorrect Speed Reading

Possible Causes:

• Fouled Transducer
• Signal Reflection Issues
• Calibration Error

Solution:

• Clean Transducer Surface
• Verify Calibration Settings
• Check Sensor Alignment

Distance Counter Error

Possible Causes:

• Software Configuration Problem
• Communication Error
• Sensor Instability

Solution:

• Verify System Settings
• Inspect Communication Lines
• Restart System

Display Failure

Possible Causes:

• Power Supply Fault
• Internal Display Failure
• Processor Issue

Solution:

• Check Power Input
• Verify Fuse Condition
• Inspect Display Unit

Communication Failure

Possible Causes:

• Interface Port Damage
• Wiring Fault
• Incorrect Output Configuration

Solution:

• Check Data Connections
• Verify Output Settings
• Inspect Interface Module

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Maintenance Tips

Marine engineers should regularly inspect:

• Transducer Condition
• Hull Sensor Area
• Cable Connections
• Speed Accuracy
• Alarm History
• Power Supply Voltage
• Communication Interfaces

Proper maintenance improves:

• Measurement Accuracy
• Navigation Safety
• Equipment Reliability
• System Lifespan

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Why Ships Still Use FURUNO DS-80

The DS-80 remains popular in the maritime industry because of:

• Proven Doppler Technology
• Excellent Accuracy
• Reliable Marine Construction
• Easy Integration
• Long Operational Life
• Worldwide Technical Support

Many commercial fleets continue operating DS-80 systems due to their dependable performance and proven reliability.

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Frequently Asked Questions (FAQ)

What is the purpose of the DS-80?

The DS-80 measures vessel speed and distance using Doppler sonar technology.

Can the DS-80 interface with ECDIS?

Yes. Speed data can be transmitted directly to ECDIS and other navigation systems.

Is the DS-80 suitable for commercial vessels?

Yes. It is widely used onboard commercial ships worldwide.

What information does the DS-80 provide?

The system provides speed, distance, and navigation-related motion data.

Do you supply refurbished units?

Yes. SM MARINE SERVICE™ can supply New, Used, Refurbished, and Reconditioned units depending on stock availability.

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Short Product Description

The FURUNO DS-80 Doppler Speed Log is a professional marine speed measurement system designed for accurate vessel speed and distance monitoring. Using Doppler sonar technology, the system provides essential navigation data for ECDIS, AIS, Radar, Autopilot, and VDR systems onboard commercial vessels.

SM MARINE SERVICE™

Marine Automation & Navigation Equipment Supplier

Available Condition

• New Equipment
• Used Equipment
• Refurbished Equipment
• Reconditioned Equipment

Stock Location

• Bangladesh
• China

Services

• Worldwide Shipping
• Technical Support
• Spare Parts Supply
• Marine Equipment Sourcing

Contact Information

SM MARINE SERVICE™

Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh

Mobile / WhatsApp / Viber: +88 01818 929292

Email: info@smmarineservice.com

Website: www.smmarineservice.com

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