NiteVu Night Lighting Systems
Most compass models are available with Ritchie's exclusive NiteVu night lighting. Each provides the optimum illumination of the dial and lubber lines without hindering important night vision. All NiteVu lighting systems come standard for 12-volt operation. Other voltages are available on special order.
The compass dome allows the compass dial to rotate smoothly through heel, pitch and yaw motions. The dome also provides clear and accurate magnification of the dial. Our domes are made exclusively for Ritchie using a heavy-duty, optically clear polymer. It is formulated to prevent sun crazing and will stay stable throughout extreme temperature ranges.
Bezels & O-Rings
Sealing the entire compass assembly is critical to prevent fluid leakage. The Ritchie O-Ring is a custom blend compound that is non reactive with dampening fluid. Bezels are formed from high strength plastics, aluminum or machined bronze.
All Ritchie Compasses are engineered to operate normally without bottoming out due to pitch and roll. An internal gimbaling system often provides this important function. Ritchie gimbals cradle the dial assembly within an axis system bisecting the compass bowl. These ultra-light weight aluminum gimbals and pans are held in place with spring loaded brass pins. A brass counter balance keeps the entire system level.
Compass Bowls & Housings
Bowls and housings provide maximum protection and support for the internal compass components. They are made from brass, or high-strength glass reinforced polymers.
Deviation occurs when something on board your boat such as: masses of iron, engines, electric motors, electronics with speaker magnets, batteries, electronic instruments, tachometers with magnets, engine controls, steering wheels, and electric appliances; draw the compass magnets away from their attraction to the earth's magnetic field.
All Ritchie compasses that are intended for use on boats that could have deviation problems, have built-in compensators. These compensators are non-interactive magnets that are balanced and optimally spaced for accurate correction. Compensation instructions are included.
Fluid Baffle & Roller Diaphragm
The steady performance of the Ritchie compass is enhanced by a baffle and roller diaphragm. Baffles reduce turbulence in the dampening fluid. Diaphragms allow the fluid to expand or contract with changes in temperature or pressure without forming bubbles.