Contents

IMPORTANT NOTICES
SAFETY INSTRUCTIONS
TABLE OF CONTENTS
FOREWORD
SYSTEM CONFIGURATION
EQUIPMENT LIST
1. INSTALLATION
- 1.1 Installation Considerations
  - 1.1.1 General considerations
- 1.2 Platform Mount
  - 1.2.1 Required tools
  - 1.2.2 How to mount the Antenna Unit
- 1.3 Pole Mount
  - 1.3.1 Installation notices
  - 1.3.2 Required tools
  - 1.3.3 How to assemble the pole kit
  - 1.3.4 How to mount the Antenna Unit
- 1.4 Antenna Mounting Base (option)
  - 1.4.1 Installation notices
  - 1.4.2 Required tools
  - 1.4.3 How to mount the Antenna Unit
- 1.5 Bird Deterrents (Option)
- 1.6 Snow Cover Kit (Option)
- 1.7 Wiring
  - 1.7.1 How to secure and protect cable connectors
  - 1.7.2 How to protect unused connector of display unit
2. OPERATIONAL OVERVIEW
- 2.1 How to Turn the Power On/Off
- 2.2 How to Access the SCX-21 Settings
  - 2.2.1 GP-39 Controls
  - 2.2.2 How to operate the menu
  - 2.2.3 How to change the GP-39 operation mode
- 2.3 Display Modes
  - 2.3.1 [Satellite monitor] display mode
  - 2.3.2 [Heading] display mode
  - 2.3.3 [3-Axis Speed] display mode
  - 2.3.4 [ROT] user display
  - 2.3.5 [Attitude] user display
  - 2.3.6 How to setup the user displays
- 2.4 How to View System Information and Conduct Diagnostic Tests
  - 2.4.1 Viewing system information
  - 2.4.2 Conducting a simple diagnostic test
  - 2.4.3 Conducting an advanced diagnostic test
3. INITIAL SETTINGS
- 3.1 How to Set the Ship Dimensions
- 3.2 Satellite Settings
  - 3.2.1 How to ignore satellites
  - 3.2.2 How to setup SBAS
  - 3.2.3 How to set an elevation mask
  - 3.2.4 How to set a time limit for dead reckoning
- 3.3 How to Apply Offsets
  - 3.3.1 Data Smoothing (Damping)
- 3.4 How to Setup Data Output
  - 3.4.1 Setting up a data port for output
  - 3.4.2 How to setup the SCX-21 as a data relay
- 3.5 Wiring Information between SCX-21 and GP-39
4. MAINTENANCE
- 4.1 Preventative Maintenance
- 4.2 Fuse Replacement
- 4.3 Troubleshooting
- 4.4 GP-39 Related Errors and Remedies
APPENDIX 1 MENU TREE
APPENDIX 2 GEODETIC CHART CODES
APPENDIX 3 WHAT IS SBAS?
SPECIFICATIONS
1
- 1.1
- 1.2
  - 1.2.1
  - 1.2.2
- 1.3
  - 1.3.1
  - 1.3.2
  - 1.3.3
  - 1.3.4
- 1.4 ()
  - 1.4.1
  - 1.4.2
  - 1.4.3
- 1.5 ()
- 1.6 ()
- 1.7
2
3
- 3.1
- 3.2
- 3.3
1
2 SBAS
PACKING LISTS
INTERCONNECTION DIAGRAM

Furuno SCX-21 Operator's Manual

Pages 88

Year 2019

Language(s)

of 88

Furuno SCX-21 Compass Specification

The Furuno SCX-21 Compass is a precision navigational instrument designed to deliver exceptional accuracy and performance for maritime operations. This compact and robust device utilizes advanced satellite compass technology, providing reliable heading, pitch, roll, and heave data essential for modern navigation and vessel operation. The SCX-21's design incorporates multiple antennas to ensure superior accuracy and stability, making it highly resistant to interference and environmental factors. The device features a high-speed update rate, allowing for rapid response and real-time data processing, which is crucial for dynamic marine environments.

The SCX-21's connectivity options include NMEA 0183 and NMEA 2000 interfaces, ensuring seamless integration with a wide range of marine electronics and navigation systems. Its user-friendly setup and configuration process enable quick installation and operation, reducing downtime and enhancing usability. The compass is built to withstand harsh marine conditions, featuring a rugged housing that ensures reliable performance even in extreme weather.

In terms of accuracy, the SCX-21 provides precise heading data with an accuracy of ±0.5 degrees, and its multi-GNSS capability supports GPS, Galileo, GLONASS, and QZSS, ensuring reliable performance in diverse geographical locations. The device's heave, pitch, and roll measurements are highly accurate, offering stability and reliability for various marine applications, including autopilot systems, radar overlay, and AIS. With its cutting-edge technology and robust design, the Furuno SCX-21 Compass is an ideal solution for professional mariners seeking enhanced navigational precision and operational efficiency.

Furuno SCX-21 Compass F.A.Q.

How do I calibrate the Furuno SCX-21 Compass?

To calibrate the Furuno SCX-21 Compass, access the calibration menu through the display unit. Follow the on-screen instructions to perform a slow 360-degree turn in a calm and open area. Ensure there are no large metallic objects nearby during calibration.

What is the procedure for updating the firmware on the SCX-21?

To update the firmware, download the latest version from the Furuno official website. Connect the SCX-21 to a computer using the appropriate interface and run the firmware update tool provided by Furuno. Follow the instructions carefully to complete the update.

How can I troubleshoot signal loss on the SCX-21?

First, check all cable connections for any signs of wear or damage. Ensure the antenna has a clear view of the sky and is not obstructed by any structures. If signal loss persists, perform a system reset and check for firmware updates.

What maintenance is required for the Furuno SCX-21 Compass?

Regularly inspect the antenna and mounting hardware for any signs of corrosion or physical damage. Clean the antenna with a soft cloth to remove any dirt or salt deposits. Check the cabling for wear and ensure secure connections.

How do I integrate the SCX-21 with other navigation systems?

Connect the SCX-21 to other systems via NMEA 2000 or NMEA 0183 interfaces. Refer to the integration guide provided in the user manual for detailed wiring diagrams and configuration settings.

What should I do if the SCX-21 displays incorrect heading data?

Ensure the compass is properly calibrated and mounted away from magnetic interference. Verify that the latest firmware is installed. If the problem persists, contact Furuno support for further assistance.

Can the SCX-21 be used in extreme weather conditions?

The SCX-21 is designed to operate in various weather conditions. However, ensure that the unit is securely mounted and protected from direct impact. Regular maintenance checks are recommended to ensure optimal performance.

How do I perform a factory reset on the SCX-21?

To perform a factory reset, access the system settings menu on the display unit. Select the reset option and confirm your choice. Note that this will erase all custom settings and return the device to its original configuration.

What are the common error codes for the SCX-21 and their meanings?

Refer to the user manual for a comprehensive list of error codes. Common codes include 'E101' for communication errors and 'E202' for calibration failures. Each code is accompanied by troubleshooting steps.

Is it necessary to update the SCX-21 software regularly?

Yes, regularly updating the software ensures that the SCX-21 operates with the latest features and bug fixes. Always download updates from the official Furuno website and follow the installation instructions carefully.