YDK (Yokogawa) CMZ900 Gyro Compass Series

YDK (Yokogawa)

YDK’s (previously Yokogawa) CMZ900 Series of Gyro Compasses offers several models to provide the right features set to the needs of the vessel.  All models have been type-approved to comply with IMO standards resolution & JIS-F9602 Class A standards.

A gyro compass detects the 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 gyro compass consequently indicates a ship’s heading. CMZ900 series has been type approved in accordance with International Maritime Organization (IMO) standards, resolution A.424(XI) as well as JIS-F9602, class A standards.
  • CMZ900-B2 Gyro Compass for small vessels (smooth gyro changes without lag when small vessel changes course)
  • CMZ900-S Gyro Compass (+ Control Box with built-in monitor)- suitable for all merchant vessels, with various types of signal outputs
  • CMZ900 -D Dual Gyro Compass (+ Control Box + Dual AC Adaptor) – Highly reliable dual system,  switch-over controls, multiple signal outputs, & enhanced integration
Viewing enhancement of the system capability, optional instruments are available in order to increase the signal outputs of the gyro compass. Other navigation equipment such as repeater compasses, course recorder are available as a part of the system. MASTER COMPASS (MKM 026) runs on 24 VDC power supply. It is easily adopted to the power supply requirements, and all signal outputs can then be maintained during AC power interruption if 24 VDC is provided. Serial data output IEC 61162-1 or -2 (high-speed transmission) is selective, and contains the ship’s heading and rate of turn (ROT) information.


  • Modular design saves space
  • Master Compass can include in autopilot steering unit
  • Serial data output for heading and ROT output
  • Manual and auto speed correction (900S & 900D)
  • Unique anti-vibration system
  • Small, lightweight container enhances follow-up speed

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