The compass consist of a transparent plastic mainly rectangular base with a rounded edge against the hand, a magnifying lens, and a circular dial assembly with a liquid damped compass needle. The compass is non-radio active, magnetic, unmounted, and suitable for field conditions.
Suunto A-30
6400/360 NH Metric
Suunto item: SS023318000
NSN code: 6605-58-001-3374
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Physical specifications
Produet dimenslons:
114x56x10 mm
Net welght:
32 g
Package dimensions:
73x22x180 mm
Gross weight:
73 g
Operational temperature range:
-30° C to +60° C. The compass will form a temporary vacuum bubble at about -20˚C.
Water proofness:
Waterproof to all practical water depths as there is no cavity that can leak water in.
Storage temperature range:
-30° C to +60° C
Compass baseplate specification
Baseplate:
Three straight edges and one rounded side that fits the hand in a good way, transparent, made from impact and scratch resistant PMMA
Magnifying lens:
Yes
Rulers and scales:
cm, 1:25 000 km, 1:50 000 km rulers, with the 1:50 000 km and cm rulers working together as a Roamer.
Compass needle/card and protractor specifications
Protractor diameter:
48 mm
Primary direction scale:
On top of rotating protractor alligned with outer edge, MILS (Mil-radians) scale 0-6400' clockwise with 100' resolution and a number every 40'. Diameter: 45 mm.
Secondary direction scale:
On bottom of rotating capsule visible from above, DEGREES scale 0-360° clockwise with 2° resolution and a number ever 20°. Diameter: 32 mm.
Magnetic balancing:
Northern hemisphere with much of southern hemisphere covered as well.
Needle design:
Red for north and black for south. The needle has a luminescent area in the north end. The center of the needle is transparent and the damping shape of the needle is also transparent. The hub of the needle features a NdFeB ring shaped magnet.
Needle length:
32 mm
Needle movement damping method:
Non-freezing transparent liquid filled compass capsule.
Compass capsule:
Hermetically sealed transparent PMMA capsule, diameter 35 mm.
Orienting arrow:
Red and black colored with luminescent dots next to it, located at the bottom of the rotating capsule.
Declination corection:
Fixed scale at the bottom of the rotating capsule going full 360˚ with 0 at the orienting arrow. The scale has a two degrees resolution and is marked with a number every 20˚.
Protractor index:
White line on black background under protractor scale.
Luminescent features
Luminescent material:
SrAl2O4
Compass Needle:
Area on the north end of the compass needle.
Orienting arrow:
Two dots, one on each side of the north end of the orienting indicator.
Protractor:
Not luminescent
Protractor index:
Not luminescent
Direction of travel:
Luminescent dot on the center line close to the edge furthest away from the user.
Attachment
Lanyard:
1,22 m black IR non-reflective lanyard
User guide
On line:
Yes