Gyrocompass
CMZ900S
This type is suitable for all kinds of merchant vessels. Various types of signal outputs are available.

CMZ900S Gyrocompass
Features
- The system configuration can easily be adapted to each vessel's specifications.
- IEC 61162-2 high-speed code is available for the heading and rate of turn (ROT) outputs.
- A unique anti-vibration system enhanced by the velocity damping effect of high viscous oil, provides superior damping of vibration and decoupling of shock at sea.
- A small and lightweight container enhances the follow up speed. The gyrocompass changes smoothly and does not lag when a small vessel rapidly changes course.
- A space-saving design: the master compass and the control box can be installed on the autopilot stand.
- Automatic speed error correction is possible if both the ship's speed signal from the speed log and the latitude signal from a GPS or some other positioning device is available. Further, the latitude can be estimated from the ship's speed and the gyrocompass reading if the positioning device signal is absent.
- An external heading signal from an instrument such as a magnetic compass or a GPS compass can be passed to repeater compasses and other ship equipment for back-up purposes.
- As a standard function, a built-in monitor detects deviations between the master compass and external sensor heading readings.
- The restart time can be preset from 1 to 99 hours.
Specifications
| Settling Time and Accuracy |
Settling time | Within 5 hours (Operational state is reached in about 2 hours) |
|
| Accuracy | Static: ±0.25 deg.x sec (Latitude) Dynamic: ±0.75 deg.x sec (Latitude) |
||
| Follow up accuracy | 0.1 deg. or less | ||
| Max. follow up speed | 30 deg./s | ||
Environmental |
Permissible angle | ±40 deg.(Roll), ±40 deg. (Pitch) | |
| Ambient temperature | -10 deg.C to +55 deg.C | ||
| Power Supply | Main | 100V/110V/115V/220V AC 50/60Hz single-phase 24V DC (For back up power) |
|
| Alarm | 24 V DC | ||
| Signal Inputs | Automatic speed error correction |
Latitude: IEC61162-1 (NMEA0183) | 1 circuit |
Ship's speed: 200 P/nm or IEC61162-1 |
1 circuit | ||
| External heading | IEC61162-1 (NMEA0183) | 1 circuit | |
| Signal Outputs | Heading data for repeater compasses | 8 circuits | |
| Heading data for steppers | 4 circuits | ||
| Serial data | IEC61162-1 | 1 circuit | |
| IEC61162-1/-2 selective | 2 circuits | ||
| Analog heading data | Heading signal | 1 circuit | |
| Quadrant signal | 1 circuit | ||
| Turn rate signal | 3 circuits | ||
| Gyro. running (Close contact when running) | 1 circuit | ||
| Alarms (Open contact when abnormal) |
System failure | 1 circuit | |
| Master compass failure | 1 circuit | ||
| No voltage | 1 circuit | ||
| Heading deviation signal (Close contact when excessive) | 1 circuit | ||