Marine Device : GYROCOMPASS, SUPPORTING LIQUID, INSULATING FLUID, MERCURY
Manufacturer : C-PLATH
Type / Model : NAVIGAT X MK1, NAVIGAT X MK2
Supporting Liquid for NAVIGAT X MK1 Gyrocompass
Overview
This specially formulated supporting fluid is required for the gyrosphere containment system of the NAVIGAT X MK1 gyrocompass. It ensures correct buoyancy, damping and electrical conduction within the gyrosphere container, thereby maintaining accurate heading output and system stability.
Key Features
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Compatible with NAVIGAT X MK1 (and MK2) gyrocompass models.
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Allows correct “floating” of the gyrosphere by means of buoyancy in the fluid environment.
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Critical for ensuring correct damping of sphere oscillations and maintaining the required north‐seeking behavior in the gyro system.
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Supplied in matched volume (as part of overhaul or maintenance kits) and requires correct handling, filling, and sealing as per service manual.
Installation & Maintenance Notes
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The container must be filled until excess fluid exits from the valve neck as per manual instructions.
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At temperatures below 0 °C, the supporting fluid may freeze; the system must not be operated under such conditions unless approved.
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Maintenance intervals (including fluid replacement) typically align with the manufacturer’s scheduled service (often every 18 months for these units).
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Always use fluid that meets the exact specification for the unit—using incorrect fluid may damage system bearings or affect calibration.
Why It Matters
The supporting fluid is not just a filler—it is a functional part of the gyrocompass system. Proper fluid ensures the gyrosphere remains correctly suspended and damped, thus preserving heading accuracy, response under ship motions, and overall reliability. Failure to maintain correct fluid condition can result in drift, increased settling time, or heading errors.
