1. Introduction
This manual provides detailed instructions for the proper use, setup, maintenance, and troubleshooting of your AOFAR Military Compass AF-M2-B. Designed for geological exploration, hunting, and hiking, this multifunctional lensatic compass offers high precision and durability. Please read this manual thoroughly before using the compass to ensure optimal performance and longevity.
2. Product Overview
2.1. Components and Features
The AOFAR Military Compass AF-M2-B is engineered with several key components to provide accurate navigation and measurement capabilities.
Figure 2.1: The AOFAR Military Compass AF-M2-B in its open position, revealing the compass dial, sighting wire, and mirror. The robust green casing is visible, indicating its military-grade design.
Figure 2.2: A detailed diagram highlighting the various components of the AF-M2-B compass. Key parts include the short diopter, magnetic declination regulator, magnetic needle brake, grow-in-the-dark circle for low-light visibility, aiming line, hinge, round water level, long water level, and long diopter, all essential for precise navigation.
2.2. Key Features
- Durable and Compact: Constructed from durable ABS material, featuring a needle lock mechanism to secure the compass assembly during transport, preventing damage and ensuring longevity.
- High Precision: Equipped with a magnetic declination adjuster for simple compensated bearings. The vertical angle clinometer scale provides measurements in 1-degree increments, with a full range of 90 degrees.
- Multifunctional Design: Designed to be waterproof and shakeproof, ensuring reliability in various environmental conditions. Features include a compass bubble level for accurate leveling, a clinometer level for vertical angle measurements, a sighting mirror with a lubber line and sighting hole for precise aiming, an induction dampened needle for quick and stable readings, and adjustable sighting points.
- Versatile Applications: Ideal for a wide range of outdoor and professional activities, including camping, hiking, adventure sports, positioning, and mapping. It is particularly well-suited for geologists, surveyors, mining engineers, civil engineers, environmental engineers, and foresters.
- Fluorescence: Features glow-in-the-dark elements for visibility in low-light conditions.
3. Setup
The AOFAR Military Compass AF-M2-B is designed for ease of use. Follow these steps for initial setup and preparation for use.
3.1. Unpacking and Initial Inspection
- Carefully remove the compass from its packaging.
- Inspect the compass for any visible damage.
- Ensure all included components (Bag, Wrist Lanyard, Manual) are present.
3.2. Opening and Preparing the Compass
To prepare the compass for use, follow the sequence shown below:
Figure 3.1: This illustration demonstrates the three steps to open the AOFAR Military Compass. Begin with the compass fully closed (01), then partially open it (02), and finally extend it to its full operational position (03), revealing the internal components ready for navigation.
- Step 1 (Closed): The compass is in its compact, closed state, protecting the internal mechanisms.
- Step 2 (Partially Open): Gently lift the cover to partially open the compass.
- Step 3 (Fully Open): Continue opening until the sighting mirror and dial are fully exposed and the compass is ready for use. Ensure the needle lock is disengaged if present.
3.3. Attaching the Wrist Lanyard
Attach the provided wrist lanyard to the designated loop on the compass. This helps prevent accidental drops and loss during outdoor activities.
4. Operating Instructions
The AOFAR Military Compass AF-M2-B is a versatile tool. Understanding its functions is crucial for accurate navigation.
4.1. Basic Compass Use (Taking a Bearing)
- Hold Level: Hold the compass level to allow the magnetic needle to swing freely. Use the bubble levels (round and long) to ensure proper leveling.
- Orient Yourself: Rotate the compass until the North (N) on the dial aligns with the magnetic North indicated by the needle.
- Sight Target: Use the sighting mirror, sighting hole, and sighting wire (lubber line) to aim at your desired target.
- Read Bearing: Read the bearing (azimuth) from the compass dial at the lubber line. This is the direction to your target in degrees.
4.2. Using the Magnetic Declination Adjuster
Magnetic declination is the angle between magnetic North and true North. For precise navigation, especially when using maps, adjusting for declination is important.
- Locate the magnetic declination regulator (refer to Figure 2.2).
- Using a small tool (e.g., a small screwdriver or the provided wrench if applicable), adjust the regulator to compensate for the local magnetic declination. Information on local declination can be found on topographic maps or online resources.
4.3. Using the Clinometer (Vertical Angle Measurement)
The clinometer measures vertical angles, useful for determining slopes or heights.
- Hold the compass on its side, aligning the base with the object whose vertical angle you wish to measure.
- Ensure the clinometer level is centered.
- Read the vertical angle from the clinometer scale. The compass features a wrench for the inclinometer, as shown in Figure 4.1.
Figure 4.1: This image displays a Camouflage Conversion Chart and specifically highlights the wrench used for the inclinometer, which is essential for adjusting and using the clinometer function of the compass.
4.4. Using Fluorescent Features
The compass features "grow-in-the-dark" elements on the dial and needle for improved visibility in low-light conditions. Expose the compass to light before use in dark environments to charge these fluorescent markings.
5. Maintenance
Proper care and maintenance will extend the life and accuracy of your AOFAR Military Compass AF-M2-B.
- Cleaning: Wipe the compass with a soft, damp cloth to remove dirt and debris. Avoid abrasive cleaners or solvents that could damage the finish or internal components.
- Storage: Store the compass in its pouch in a cool, dry place away from strong magnetic fields (e.g., magnets, electronic devices, large metal objects) when not in use.
- Protection: Always engage the needle lock (if applicable) when transporting the compass to protect the delicate needle assembly.
- Avoid Extreme Temperatures: Do not expose the compass to extreme hot or cold temperatures for prolonged periods, as this can affect its accuracy and material integrity.
6. Troubleshooting
If you encounter issues with your AOFAR Military Compass AF-M2-B, refer to the table below for common problems and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Needle not settling / erratic readings | Close proximity to magnetic objects (e.g., phone, keys, metal structures) | Move away from all magnetic interference. Ensure the needle lock is disengaged. |
| Bubble level not centered | Compass not held level | Adjust your grip and position until the bubble is centered, indicating a level surface. |
| Difficulty reading in low light | Fluorescent markings not charged | Expose the compass to a light source (natural or artificial) for a few minutes to charge the glow-in-the-dark features. |
| Compass appears sluggish or sticky | Dust or debris inside, or extreme temperature exposure | Ensure the compass is clean. Allow it to return to moderate temperatures if exposed to extremes. If the issue persists, contact customer support. |
7. Specifications
Below are the technical specifications for the AOFAR Military Compass AF-M2-B:
| Feature | Detail |
|---|---|
| Model Name | AF-M2-B |
| Brand | AOFAR |
| Material | Durable ABS Plastic |
| Color | Camouflage |
| Item Dimensions (LxWxH) | 3.1 x 1.8 x 4.3 inches |
| Package Dimensions (LxWxH) | 4.45 x 3.27 x 1.81 inches |
| Package Weight | 0.15 Kilograms |
| Special Features | Waterproof, Shakeproof, Fluorescent, Lensatic, Magnetic Declination Adjuster, Clinometer, Bubble Levels |
| Included Components | Compass, Pouch, Wrist Lanyard, Manual |
8. Warranty and Customer Support
AOFAR stands behind the quality of its products.
8.1. Warranty Information
The AOFAR Military Compass AF-M2-B comes with a TWO YEARS LIMITED WARRANTY from the date of purchase. This warranty covers manufacturing defects and ensures the product performs as intended under normal use. Please retain your proof of purchase for warranty claims.
8.2. Customer Support
For any questions, technical assistance, or warranty claims, please contact AOFAR customer support. We provide lifetime customer support to ensure your satisfaction.
AOFAR Customer Service:
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