C. Plath Merkug SE Compass with Square Flange

 

Specifications: • Full spherical construction with internal gimbal system. • Accuracy of indication: less than or equal to 1°. • Lag error: less than or equal to 2°. • Oscillation period: greater than or equal to 4.7 sec. The above values exceed the ISO norm (International Organization of Standards). • Temperature range: -22°F to 158°F. • Vibration resistance exceeds the requirements of the BSH (German Hydrographic Institute). • Seawater resistant, light alloy housing. Super-strong glass dome, insensitive to ultraviolet radiation. • Red dazzle-free illumination. • Concave card with clear 5° graduation. • Glass dome guaranteed for life against cracking, crazing, and yellowing under normal use. • Oscillation-free double bottom compensates volumetric changes. • Full internal gimbal system accommodates all angles of heel without compromising accuracy (all models except VZE.) • Apparent card diameter: 4-3/4" (120mm). • Weight: 4 lbs. 8 oz. • Three year warranty on body. • Lifetime warranty on glass dome. Merkur SE Specs: • For horizontal flush surface mounting. • 3 lubber lines. • Compensation capsule available. • USCG Approved #160.014/9. • Used on most lifeboats.