YOKOGAWA GYROCOMPASS CMZ-900

DEVICE: GYROCOMPASS

BRAND: YOKOGAWA / YDK

TYPE: CMZ-900

About CMZ-900 Gyrocompass

General

The CMZ-900 gyrocompass determines true north using a high-speed spinning rotor, suspended without friction and influenced by gravity and Earth’s rotation. This enables accurate heading indication for ships. The CMZ-900 series is type-approved in compliance with International Maritime Organization (IMO) standards.

Key Features

1. Space-saving modular design – Master compass can be integrated into the autopilot steering stand.

2. Manual speed error correction for enhanced precision.

3. Backup capability via an external heading sensor.

4. High-speed serial data output (IEC 61162-2).

5. Advanced anti-vibration mechanism with high-viscosity oil for superior shock absorption.

6. Lightweight container for faster follow-up speed and smooth heading changes.

7. Low maintenance, extended service intervals – Titanium capsule and electrodes ensure purity and long life.

8. Quick restart – Preset restart time from 1 to 99 hours.

Main Functions

• Dual power supply: 24V DC and/or 100–220V AC

• Multiple heading outputs: Serial (3 circuits), Stepper (1 circuit), Repeater compasses (3 circuits)

• Analog heading, quadrant, and ROT outputs

• External heading sensor input for redundancy

• Manual speed error correction

Power Supply

• 24V DC (20–30V DC) and/or 100V, 110V, 115V, or 220V AC, 50/60Hz single-phase

• MKR027 AC adapter required for AC operation

Signal Specifications

• Serial interface: IEC 61162-1

• Baud rate: 4800 bps

• Supported output formats: HDT (True Heading), THS, HDG, HDM, HRC

Performance

• Settling time: Within 5 hours (usable accuracy in ~2 hours)

• Accuracy:

  • Static: ±0.25° × sec (latitude)

  • Dynamic: ±0.75° × sec (latitude)

• Follow-up accuracy: ≤0.1°

• Max follow-up speed: 30°/s

Environmental Specifications

• Roll & pitch: ±40°

• Vibration resistance:

  • 0–8.3Hz: ≤3mm P-P

  • 8.3–25Hz: ≤0.35mm P-P

  • 25–50Hz: ≤0.1mm P-P

• Temperature range:

  • Master compass: -15°C to +55°C (storage), -10°C to +50°C (operation)

  • Bearing repeater: -25°C to +70°C

• EMC compliance: IEC 60945 (4th edition)

We supply the CMZ-900 Gyrocompass and all related spare parts worldwide and provide service at all ports across Turkey.