Suunto A-30 NH USGS Compass
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Product Information
Full details
The Suunto A-30 NH USGS compass is designed for hikers, orienteers, and outdoor enthusiasts who need a reliable navigation tool, especially in low-visibility conditions. Its key benefit is accurate, dependable guidance without the need for batteries. A potential caveat is that it uses imperial scales, which may require conversion for users accustomed to metric systems.
All features
| Model Part Number | SS012100013 |
|---|---|
| Brand | Suunto |
Extended Product Information
FAQs
What does 'USGS' in the product name signify?
USGS typically refers to the United States Geological Survey, indicating that this compass's scales and markings are aligned with standards commonly used on USGS maps, which often employ imperial units.
How do I use the magnifying glass?
The magnifying glass is integrated into the transparent baseplate. Hold the compass close to the map and position the magnifier over the area you need to examine for a closer view of fine details.
Is this compass waterproof?
The compass is protected against water ingress and is considered water-resistant, suitable for use in rain or humid conditions. However, it is not designed for prolonged submersion.
How do I correct for magnetic declination?
The A-30 NH USGS features a fixed scale for declination correction. Consult your map or local magnetic declination data, and adjust the bezel or use the designated correction method for your model to align the compass needle with true north.
What is the warranty period for this compass?
While specific warranty details can vary, Suunto typically offers a warranty on their navigational instruments. It is recommended to check the product documentation or contact Suunto customer support for precise warranty information.
Can I use this compass with metric maps?
You can use it with metric maps, but you will need to perform manual conversions between the compass's imperial scales and the map's metric units for distance and scale.
What is the lifespan of the luminous markings?
Luminous markings typically retain their glow-enhancing properties for several years with proper care. Their brightness depends on exposure to light. Recharge them in daylight or under a strong artificial light source for best performance.
Troubleshooting
Compass needle is not settling or is erratic.
Ensure the compass is held flat and level. Check that the liquid-filled capsule is intact and not leaking. Strong local magnetic interference (e.g., near metal objects or electronics) can also cause erratic behavior; move to a different location to test.
Readability is poor in low light.
Ensure the luminous markings have been exposed to light (natural or artificial) to 'charge'. Keep the compass lens clean. If visibility is extremely poor, consider using the magnifying glass to read map details if available.
Declination setting is confusing.
Refer to the compass manual for specific instructions on setting the fixed declination. Ensure you are using the correct local magnetic declination value for your area, which can be found from official geological surveys or online resources.
Carrying cord broke or detached.
The cord is designed to be detachable. Reattach it through the designated hole on the baseplate. If the cord itself is damaged, a suitable replacement cord can be used.
Pros and Cons
Pros
- Highly accurate and reliable for navigation.
- Operates without batteries, ensuring function in any condition.
- Luminous markings enhance visibility in low light.
- Integrated magnifier simplifies detailed map work.
- Robust build quality designed for outdoor use.
- Fixed declination scale for easy adjustments.
Cons
- Uses imperial scales, which may be less convenient for users accustomed to metric.
- Lacks advanced features found in GPS devices.
- Requires user knowledge of map and compass navigation.
- Plastic bezel may be susceptible to scratching over time.
Setup, Compatibility & Care
Setup:
- Familiarize Yourself: Understand the markings on the compass dial and baseplate.
- Declination Adjustment: If necessary for your region, set the fixed declination scale according to local magnetic declination values. Consult local authorities or online resources for current declination.
- Carrying Cord: Attach the removable carrying cord for easy access during use.
Compatibility:
The Suunto A-30 NH USGS is designed for use with topographic maps that utilize imperial scales. It is compatible with most standard orienteering and hiking maps.
Care:
- Cleaning: Wipe the compass with a soft, damp cloth. Avoid using solvents or abrasive cleaners, as they can damage the plastic parts and markings.
- Storage: Store the compass in a cool, dry place, away from direct sunlight and strong magnetic fields. Ensure the needle is not stuck against the capsule stops.
- Handling: Avoid dropping the compass or subjecting it to strong impacts. While durable, extreme shocks can affect the needle bearing.