The Yokogawa CMZ 700 series (including the 700B, 700S, and 700D models) is a versatile gyrocompass system designed to provide reliable heading data for various vessel types 1. Key System Components The system configuration depends on your specific model: Master Compass (MKM 022) The core unit containing the gyrosphere. Control Box (MKC 320/321):
Used in "S" (Single) and "D" (Dual) models to manage multiple inputs and outputs. Operation Unit (MKR 024)
The interface used to check headings, manage alarms, and enter maintenance codes. i.trade-cloud.com.cn 2. Operation Basics Startup Time: The system typically takes about
to reach full accuracy, though it becomes operational for basic navigation in roughly Setting Input: Ship’s Speed: Can be entered manually or automatically via serial signal.
Necessary for error correction; can be set manually or via GPS/serial input. Switching Gyros (Dual Model): Go to product viewer dialog for this item. unit, press and hold the designated gyro select button for 3–4 seconds to switch between Master Compass No. 1 and No. 2. 3. Maintenance and Service
Routine care is critical for the CMZ 700’s lifespan. Detailed procedures are often found in technical supplements like the CMZ 700 Service Manual CMZ700 Series Gyrocompass Manual | PDF - Scribd
Here’s a review of the Yokogawa Gyro Compass CMZ 700 User Manual from a lifestyle and entertainment perspective — focusing on readability, practical usability, and how it fits into a modern onboard or leisure maritime lifestyle.
35-30N for 35°30’ North). Critical: The manual warns that a 1° error in latitude input creates a 0.5° heading error at high speeds.The Yokogawa Gyro Compass CMZ 700 is a masterpiece of electromechanical design. It will provide decades of true north heading data—provided it is treated with respect. The Yokogawa Gyro Compass CMZ 700 user manual is not a dusty binder to be ignored; it is the operational key to the device. From the correct startup sequence to advanced latitude error calibration, every answer lies within those pages.
Whether you are a Chief Mate preparing for an inspection, a Second Engineer tasked with annual maintenance, or a cadet learning the bridge, your first step with the CMZ 700 should always be the same: Read the manual.
Call to Action: If you are currently operating a CMZ 700 without the latest manual revision, stop navigation until you locate the official document or download a verified copy from a marine service provider.
Disclaimer: This article is for informational purposes. Always refer to the official Yokogawa CMZ 700 user manual provided by the manufacturer for specific operational instructions and safety warnings.
Yokogawa Gyro Compass CMZ-700 User Manual: A Comprehensive Guide
The Yokogawa Gyro Compass CMZ-700 is a highly advanced and reliable navigation instrument designed for use on ships, vessels, and other marine craft. As a precision gyro compass, it provides accurate directional information, essential for safe and efficient navigation. This user manual aims to provide a detailed understanding of the CMZ-700's operation, installation, and maintenance, ensuring that users can maximize its capabilities and performance.
Introduction
The CMZ-700 is a state-of-the-art gyro compass that utilizes advanced technology to provide precise directional data. Its high-accuracy sensor and sophisticated algorithm enable the compass to maintain a stable and reliable output, even in challenging environmental conditions. The CMZ-700 is designed to meet the stringent requirements of the International Maritime Organization (IMO) and the International Convention for the Safety of Life at Sea (SOLAS).
System Components
The CMZ-700 consists of the following components:
Installation and Setup
Before installing the CMZ-700, ensure that the vessel's magnetic compass is properly compensated and that the vessel's steel structure does not interfere with the gyro compass's operation.
Operation
The CMZ-700 provides a range of functions and features to support navigation:
Maintenance and Troubleshooting
Regular maintenance is essential to ensure the CMZ-700 operates accurately and reliably:
Technical Specifications
The CMZ-700 has the following technical specifications:
Conclusion
The Yokogawa Gyro Compass CMZ-700 is a highly advanced and reliable navigation instrument, designed to provide accurate directional information for safe and efficient navigation. By following the guidelines outlined in this user manual, users can ensure optimal performance, safe operation, and effective maintenance of the CMZ-700. Regular checks and maintenance will ensure the CMZ-700 continues to provide precise directional data, supporting safe and efficient navigation. yokogawa gyro compass cmz 700 user manual
Appendices
Revision History
Yokogawa CMZ 700 series is a high-performance gyrocompass system designed for diverse vessel types, offering three main configurations: (Single), and Связь и Радионавигация System Configurations CMZ700B (Basic):
A compact version where the master compass drives repeaters directly without a separate control box. CMZ700S (Single):
A versatile setup with a control box and multiple I/O options suitable for any vessel tonnage. CMZ700D (Dual):
A dual gyrocompass system designed for high-reliability requirements. Key Specifications & Performance Settling Time: Reaches the meridian within (operational within 2 hours). Static heading accuracy of Follow-up Speed: Improved to
, making it effective for small, high-speed turning vessels. Power Supply: Standard operation on , with options for AC mains (100V–230V) via an adapter. Environmental Tolerance: Rated for temperatures from negative 10 raised to the composed with power C positive 55 raised to the composed with power C and roll/pitch angles up to plus or minus 40 raised to the composed with power Core Features Anti-Vibration Design:
Uses a unique system with viscous oil, universal joints, and bellows dampers to decouple the unit from ship vibrations and shocks. Automatic Error Correction:
Features automatic speed-error correction based on GPS latitude and ship speed signals. External Sensor Backup:
Can automatically synchronize and backup all repeater systems using an external heading signal (e.g., GPS compass). Restart Timer: Includes a programmable restart timer (1 to 99 hours). Связь и Радионавигация Maintenance & Troubleshooting User Interface: The operation unit includes a digital heading display, a FAIL indicator lamp that blinks during alarms, and a Command display for error codes. Error Codes: Common diagnostic codes include (ROM failure), (Backup battery failure), and (Follow-up failure). Maintenance Mode:
Technicians can access hidden functions (Code 30) to perform simulated signal tests, reset gyrosphere runtime, or correct installation errors. Gyrosphere Handling:
Only authorized personnel should perform internal maintenance; the gyrosphere must be removed with care on a flat surface after allowing it to cool for at least 60 minutes.
You can find the full user and service manuals for the Yokogawa CMZ 700 series gyrocompass (including the The Yokogawa CMZ 700 series (including the 700B,
models) through several online documentation platforms. These manuals cover everything from technical specifications and installation to maintenance and operation codes. Available Manuals and Documentation
Comprehensive User Manual (PDF): A primary 84-page manual for the CMZ700 Series is available on Scribd. It includes block diagrams, system configurations, and essential navigation heading information
Specific Guide: Detailed instructions for the Single (S) model, including installation and hot/cold start procedures, can be found at ManualsLib.
CMZ700D Dual Gyrocompass Manual: The "IM 80B10M-12E" 9th Edition manual for the dual system is a more extensive 202-page document available on Scribd. Service & Maintenance Manuals:
Maintenance Mode Guide: Lists specific codes (30-39) for simulated signals and resetting gyrosphere runtime.
Gyro Sphere Service: Instructions for overhauling and cleaning the mercury-filled gyrosphere are available via Scribd's overhaul guide. Key Sections of the Manual
These documents typically include the following chapters to ensure safe and accurate operation:
Operation: Startup/stoppage, dimmer control, and manual alignment.
Command Codes: Call-up codes for external heading input, speed/latitude settings for error correction, and software version display.
Maintenance: Daily/regular inspection checklists, error code lists, and backup memory initialization.
Safety: Precautions for handling mercury and high-voltage terminals during installation. CMZ700 Series Gyrocompass Manual | PDF - Scribd
The Yokogawa CMZ-700 is a distributed-processing gyro compass system widely used on commercial vessels, from tankers and bulk carriers to container ships. It is the successor to the popular CMZ-500 series and is known for its reliability and integration capabilities.
Unlike older gyro systems that relied on large, spinning balls and complex mechanical transmission systems, the CMZ-700 utilizes a "Distributed Processing System." This means the gyro sensors (usually located in the compass room) communicate digitally with the repeaters and other bridge equipment. Pre-start check: Ensure the master compass is not
The Yokogawa manual scares some users with its strictness, but for good reason. The CMZ 700 is a mechanical gyro; it needs care.
| Interval | Action | User Manual Reference | | :--- | :--- | :--- | | Daily | Check heading against a magnetic or celestial reference. Log any deviation. | Page 4-2 | | Monthly | Clean air filter on the master compass housing. | Page 4-5 | | Yearly | Replace the mercury vapor lamp (inside the optical detector). | Page 5-1 | | 5 Years | Factory service for gyro sphere bearing and mercury refill. | Appendix B |
