Yokogawa Gyro — Compass Cmz 700 User Manual

The mercury float chamber has a small viewing window. The manual states: "Check the bubble daily. If the bubble is larger than 10mm, the mercury has leaked. If the bubble is absent, the chamber is over-pressurized." Users often skip this because it requires opening the master compass door. Don’t.

: Capable of switching to external heading sensors to maintain signals to repeaters in the event of a gyro failure. yokogawa gyro compass cmz 700 user manual

The rain drummed a relentless, rhythmic beat against the wheelhouse windows of the MV Solstice . Outside, the North Sea was a churning mass of slate-grey water and white foam, the horizon completely obliterated by the squall. Inside, Chief Officer Elias Thorne was fighting a losing battle with the vessel's aging navigation suite. The mercury float chamber has a small viewing window

Elias quickly scanned the diagrams. He knew the startup sequence: Power On -> Check for initial rotation -> Wait for the 'Ready' light. He had done it a thousand times. But the book reminded him of the nuances he had forgotten. If the bubble is absent, the chamber is over-pressurized