If your vessel operates in or around Southampton Port, having a dependable compass system is essential. The YDK Yokogawa CMZ900 Gyro Compass delivers true north detection with unmatched accuracy and speed. Moreover, its models are designed for different ship types, ensuring the right fit for every vessel.

Previously known as Yokogawa, YDK created the CMZ900 series to serve both small and large ships. The compasses are fully IMO-compliant and meet JIS-F9602 Class A standards, making them ideal for international waters.
What Does the Gyro Compass Do?
Unlike magnetic compasses, a gyro compass uses a fast-spinning rotor. Because it reacts to Earth’s rotation and gravity, it points to true north — not magnetic north. As a result, it gives more accurate readings, which helps ships stay on course.
CMZ900 Series Overview :
The series includes three main models:
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CMZ900-B2: Designed for small vessels, it adjusts quickly to course changes.
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CMZ900-S: Built for merchant ships, it includes a control box and a built-in monitor.
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CMZ900-D: Offers a dual gyro system, giving ships extra reliability and multiple signal outputs.
Each model has a modular, compact design, making installation simple. Additionally, the compass integrates easily with other navigation systems.
Power Backup and Output Options :
The MASTER COMPASS (MKM 026) runs on 24 VDC power. If there’s a power outage, it continues to function without interruption. This ensures navigation data remains active when it’s needed most.
Moreover, the CMZ900 series supports IEC 61162-1 or -2 serial outputs, offering fast transmission of ship heading and Rate of Turn (ROT) data. This feature enhances compatibility with autopilot and other marine systems.
Key Features of the CMZ900 Series :
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Compact and space-saving design
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Seamless integration with autopilot systems
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High-speed serial output for heading and ROT
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Manual and automatic speed correction
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Advanced anti-vibration technology
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Lightweight build with fast response time
Clearly, the YDK CMZ900 is a smart choice for any vessel navigating complex ports like Southampton.
FAQs About the YDK CMZ900 Compass:
1. What is the YDK CMZ900 Gyro Compass?
It is a marine navigation device that shows true north using gyroscopic motion.
2. Why is it better than a magnetic compass?
Because it isn’t affected by magnetic fields, it gives more accurate direction.
3. Which model fits small vessels best?
The CMZ900-B2 is ideal for smaller boats due to its quick reaction to movement.
4. Can merchant ships use the CMZ900-S?
Yes, it is specially made for commercial use with advanced display and outputs.
5. What makes the CMZ900-D different?
It has a dual gyro system and backup controls for extra safety.
6. Is this compass IMO approved?
Absolutely. It complies with IMO standards and JIS Class A certifications.
7. Does it work during power loss?
Yes. With a 24 VDC power source, it stays active during outages.
8. Can I link it to autopilot?
Yes, it integrates smoothly with autopilot and repeater systems.
9. What kind of data does it output?
It gives heading and Rate of Turn (ROT) data using fast serial output.
10. Is this compass used in Southampton Port?
Yes, it’s a popular choice for ships entering and leaving Southampton.

