Silva Explorer PRO Compass Instruction Manual

1. Introduction

The Silva Explorer PRO Compass is a traditional baseplate compass designed for outdoor navigation. It incorporates high-end features for accurate and reliable use in various environments, making it suitable for hiking, orienteering, and other outdoor activities. This manual provides detailed instructions for its setup, operation, and maintenance.

2. Product Features

The Explorer PRO Compass is equipped with several features to enhance navigation:

• Slope Card: Integrated for assessing avalanche risk and determining journey difficulty by measuring terrain slope.
• Distance Lanyard: Features four scales (1:24k, 1:25k, 1:50k, 1:62.5) for direct distance measurement on maps. Its soft and bendable design allows for easy placement along routes.
• DryFlex Grip: Provides secure and comfortable handling of the compass.
• Magnetic Declination Adjuster: A built-in mechanism for compensating for the difference between magnetic north and true north.
• Luminous Markings: Enable night-time navigation for up to 4 hours after activation by daylight or a flashlight.
• Magnifying Lens: Integrated into the baseplate for detailed map work.
• Clinometer: Used for measuring slope angles.
• Map Measuring Scales: Includes 1:25k, 1:40k, 1:50k, 1:24k USGS, and GPS scales on the baseplate.
• Ergonomic Baseplate: Features a curved-up back-end for a comfortable fit in the hand and rubber friction feet for stable map work.
• High-Quality Needle: Made from Swedish steel with strong magnetic properties for quick and stable settling.

3. Setup

3.1. Attaching the Lanyard

The compass comes with a lanyard. Attach the lanyard to the designated hole on the compass baseplate. The lanyard features various scales for convenient map distance measurement.

3.2. Adjusting Magnetic Declination

Magnetic declination is the angle between magnetic north (where your compass needle points) and true north (the direction of the North Pole). This angle varies depending on your location. The Explorer PRO has a built-in adjuster:

1. Determine the local magnetic declination for your area. This information can be found on topographic maps or online resources.
2. Use a small tool (e.g., a flat-head screwdriver or the edge of a coin) to turn the declination adjustment screw, typically located on the compass housing.
3. Align the declination scale to match your local declination value. Once set, the compass will automatically compensate for the declination, allowing you to read true north directly.

4. Operating Instructions

4.1. Basic Navigation

To orient yourself and navigate using the compass:

1. Orienting the Map: Place the compass on your map with the direction of travel arrow pointing in the direction you wish to go. Rotate the map and compass together until the compass needle aligns with the orienting lines inside the compass housing, ensuring the red (north) end of the needle points to north on the map.
2. Taking a Bearing: Point the direction of travel arrow towards your destination. Rotate the compass housing until the orienting arrow (or lines) aligns with the north end of the magnetic needle. Read the bearing (azimuth) at the index line.
3. Following a Bearing: Hold the compass level in front of you with the direction of travel arrow pointing away from your body. Rotate your body until the magnetic needle aligns with the orienting arrow in the housing. The direction of travel arrow now points to your destination.

4.2. Using the Slope Card

The included slope card assists in evaluating terrain. By knowing the slope, you can assess potential avalanche risks or estimate the additional distance required for travel over inclined terrain. The card typically provides guidelines for different contour intervals (e.g., 1:24k with 20 ft interval, 1:24k with 40 ft interval).

4.3. Using the Distance Lanyard

The lanyard features four common map scales: 1:24k, 1:25k, 1:50k, and 1:62.5. To measure distance:

1. Identify the scale of your map.
2. Select the corresponding scale on the lanyard.
3. Place the lanyard directly onto your route on the map and read the distance.

4.4. Night Navigation

The compass features luminous markings on the needle and other key points. To activate these markings, expose the compass to daylight or a flashlight for a few minutes. The markings will glow, allowing for navigation in low-light conditions for up to 4 hours.

4.5. Map Measuring Scales and Magnifying Lens

The baseplate includes various map scales (mm, inches, 1:25k, 1:40k, 1:50k, 1:24k USGS, and GPS scales) for precise measurements. The integrated magnifying lens aids in reading fine details on maps.

4.6. Using the Clinometer

The clinometer allows you to measure the angle of a slope. Hold the compass on its side, aligning the baseplate with the slope you wish to measure. Read the angle indicated by the clinometer needle against its scale.

5. Maintenance

Proper care will ensure the longevity and accuracy of your Silva Explorer PRO Compass:

• Cleaning: Wipe the compass with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the plastic.
• Storage: Store the compass in a cool, dry place, away from direct sunlight and strong magnetic fields (e.g., speakers, electronic devices, car dashboards) which can demagnetize the needle.
• Temperature: Avoid exposing the compass to extreme temperatures, as this can affect the liquid inside the capsule and potentially lead to air bubbles.

6. Troubleshooting

• Air Bubbles: Small air bubbles (less than 1/4 inch) are generally acceptable and do not affect accuracy. Larger bubbles may indicate a seal issue or exposure to extreme temperature changes. If a large bubble appears and persists, contact customer support.
• Sluggish or Sticking Needle: This can be caused by magnetic interference. Move away from any electronic devices, metal objects, or power lines. If the issue persists, the needle may be demagnetized or damaged.
• Inaccurate Readings in Southern Hemisphere: This specific model is designed for the Northern Hemisphere. Compasses are typically balanced for use in either the Northern or Southern Hemisphere. Using a Northern Hemisphere compass in the Southern Hemisphere may cause the needle to dip and catch on the baseplate, leading to inaccurate readings. Ensure you have the correct compass type for your geographical region.

7. Specifications

8. Warranty

The Silva Explorer PRO Compass comes with a limited 2-year warranty. Please retain your proof of purchase for any warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact the manufacturer.

9. Support

For further assistance, technical support, or inquiries regarding your Silva Explorer PRO Compass, please contact the manufacturer, Silva, or your authorized retailer. Contact information can typically be found on the product packaging or the official Silva website.