C. PLATH COMPASSES

We service all C. Plath marine compasses. To receive your free estimate, please send us your compass information here.

Capt. Philip Van Horn Weems, an instructor of navigation at the United States Naval Academy, founded this company, originally called The Weems System of Navigation, in 1928. Since shortly after World War II, Weems & Plath ® of Annapolis, MD, has been the exclusive North American distributor of the famous C. Plath line of magnetic compasses and sextants.

C. Plath Compasses was founded by Carl Plath in 1837 in Hamburg, Germany, were it is still located today. The melding of these two names represents the combining of the greatest name in 19th century navigation, Carl Plath, with one of the 20th century giants of navigation, Capt. Weems.

C. Plath Venus Compasses dial assemblies are UNIVERSALLY BALANCED. An ideal choice for the circumnavigator. The Merkur® flush/surface mount models are USCG Approved (No. 160.014/9,10,11). All Plath Compasses come standard with GLASS DOMES.

Key to choosing a compass is its repair ability. Not only are Plath Compasses 100% repairable, they are one of the few manufacturers to use glass domes, which carry a lifetime warranty. As a fully authorized sales and service facility for C. Plath Compasses, Andrews Compass Service provides quick turnaround times for repairs (on hand inventory of parts for all current models). Andrews Compass Service also offers competitive prices on sales of Venus & Merkur® models.

VENUS COMPASS & Specifications for All Models:

Venus 5° Card

Venus 1° Card

5.75" [150mm] Apparent Card

C. Plath Venus for installation in steering columns and decks. Optional cylinder mount accommodates 5" Edson/Yacht Specialties steering columns and consoles.

• 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: less than or equal to 4.7 sec. These values exceed the ISO norm (International Organization of Standards).
• Temperature range; -22ºF to 140ºF. Corresponds with the ISO norm for commercial shipping.
• Vibration resistance exceeds the requirements of the DHI (German Hydrographic Institute).
• Seawater resistant light alloy housing with super-strong glass dome that is insensitive to ultraviolet radiation.
• Red dazzle-free illumination for 12 volt (24V by special request).
• Dished card with choice of 1° or 5° graduation.
• Oscillation-free double bottom compensates volume changes in compass fluid.
• Accuracy at all angles of heel insured by full internal gimballing. Apparent card diameter: 5.75" (150mm).
• Cutout diameter, ɸ 6" (152mm)
• Weight of compass. 6.8 lbs.
• Weight of cylinder: 2.6 lbs.
• Two year warranty on compass body.
• Lifetime warranty on glass dome.

Merkur® COMPASS & Specifications for All Models:

Merkur SE

Merkur SR

Merkur VZR

Merkur VZE

Merkur SR HD

4.72" [120mm] Apparent Card

• 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: -22ºF to 140ºF.
• Vibration resistance exceeds the requirements of the DHI (German Hydrographic Institute).
• Sea water 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 VZF).
• Apparent card diameter: 4.72" (120mm).
• Weight: 3.5 lbs.
• Two year warranty on compass body.
• Lifetime warranty on glass dome.

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