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Gyrocompass

Gyrocompass System Descriptions

A gyrocompass detects the direction of true north by means of a fast-spinning rotor, which is suspended with no friction and is influenced by gravity and rotation of the Earth. A gyrocompass consequently indicates a ship's heading. The ship's heading is transmitted to repeater compasses and other ship's equipment after the signal format is converted to serial data or to stepper or analog signals depending on what type of format the equipment requires.

There are three models in the CMZ900 series:

CMZ900B: Single-unit model, suitable for small vessels

CMZ900S: Single-unit model, suitable for all types of merchant vessels

CMZ900D: Dual-unit model for extra reliability

System Configuration of CMZ900B

System Configuration of CMZ900B


Explanation of Units (Basic configuration): CMZ900B type

1) Master Compass MKM026

The master compass consists of a control unit, container unit, and anti-vibration mechanism.

A gyrosphere, the key component of north seeking, is suspended in the container unit.

2) C.Operation Unit MKR040 (Optional)

The C.Operation unit receives the ship's speed and position data, and then corrects the speed error of the ship's heading signal.

3) AC Adapter MKR027 (Optional)

Since the master compass works on DC power, an AC adapter is used when AC power is supplied.

Thus, a two-way power supply can be easily achieved if needed.

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System Configuration of CMZ900S

System Configuration of CMZ900S


Explanation of Units (Basic configuration): CMZ900S type

1) Master Compass MKM026

The master compass consists of a control unit, container unit, and anti-vibration mechanism.

A gyrosphere, the key component of north seeking, is suspended in the container unit.

2) Control Box MKC326

The control box consists of a power supply unit, control unit, and computing unit engaged in speed error correction of the ship's heading signal.

The control box amplifies heading signals coming from the master compass.

The amplified heading signals are distributed to repeater compasses and other ship's equipment depending on what type of format the equipment requires.

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System Configuration of CMZ900D

System Configuration of CMZ900D


Explanation of units (Basic configuration): CMZ900D type

1) Master Compass MKM026

The master compass consists of a control unit, container unit and anti vibration mechanism.

A gyrosphere, key component of north seeking, is suspended in the container unit.

2) Control Box MKC327

The control box receives heading signals from the two master compasses.

By means of a switch function, the selected master compass transmits the heading signals to repeater compasses and other types of ship equipment, and the heading of all repeater compasses will align with the selected master compass heading with just the push of a button.

3) Dual AC Adapter MKS066

The dual AC adapter is capable of simultaneous AC supply to two master compasses. Two way, AC and DC power supply for each master compass can be easily achieved if needed.

 

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