Over time, the internal sphere requires replacement or refurbishment based on running hours (typically every 3 to 5 years of continuous operation). 5. Troubleshooting and Alarm Codes
The user manual for this device is essential for both operators and technicians. It provides critical information on everything from daily operation to complex troubleshooting, ensuring the compass is used safely and effectively. This article will walk you through the key sections you can expect to find in the official Yokogawa CMZ-700 documentation.
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Once the underlying cause is resolved (e.g., restoring a lost GPS signal feed), press the button to clear the fault from the system memory. Technical Specifications Summary
Turn the switch on the CMZ-700 Control Unit to the ON position. yokogawa gyro compass cmz 700 user manual
When the CMZ-700 encounters an error, it sounds an audible alarm and displays a specific code on the Display Unit. Alarm Code Description Probable Cause Action Required Power Supply Failure Main AC or backup DC voltage drop. Check fuses and input voltage thresholds. E-02 Gyro Overheat Cooling fan failure or high ambient room temperature.
Clean the master compass ventilation paths; verify fan operation. Follow-up Error The servo motor cannot track the sphere's movement.
To reduce settling time, manually enter the ship's approximate current heading via the control panel to "slew" the gyro close to true north.
: Capable of switching to external heading sensors to maintain signals to repeaters in the event of a gyro failure. Over time, the internal sphere requires replacement or
The user manual covers the operation, maintenance, and technical specifications for three primary models: CMZ700B (Basic), CMZ700S (Single), and CMZ700D (Dual).
Note: Avoid turning off the gyro compass during short port stays, as restarting it requires waiting for the 4-hour settling time again. 4. Understanding Error Corrections
: Achieves a follow-up speed of 30°/s , significantly improved from previous models to accommodate sharp-turning, high-speed vessels.
It also covers all signal connections, including ship's speed (200 P/nm or IEC61162), latitude (IEC61162), and external heading sensors. It provides critical information on everything from daily
: The "IM 80B10M-12E" 9th Edition manual for the dual system is a more extensive 202-page document available on Scribd . Service & Maintenance Manuals :
Regular maintenance prevents unexpected breakdowns at sea. Only qualified technician personnel should open the Master Compass casing. Daily Inspections
Inspect the Master Compass for signs of fluid leakage or unusual vibration.