Bushnell Prime 1800 Hunting Laser Rangefinder 6x24mm Instruction Manual

1. Introduction

This manual provides detailed instructions for the proper use and maintenance of your Bushnell Prime 1800 Hunting Laser Rangefinder. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.

Image: The Bushnell Prime 1800 Laser Rangefinder, a compact black device with objective and ocular lenses visible.

The Bushnell Prime 1800 is a high-performance laser rangefinder designed for hunting and outdoor activities. It features a 6x magnification, a maximum ranging capability of 1800 yards, and advanced technologies such as ActivSync Display, Angle Range Compensation (ARC), Brush Mode, and Bullseye Mode.

2. Setup

2.1 Battery Installation

The Bushnell Prime 1800 uses one CR2 3-volt lithium battery. To install the battery:

1. Locate the battery compartment cap on the side of the rangefinder.
2. Unscrew the cap counter-clockwise.
3. Insert a new CR2 battery with the positive (+) terminal facing inward.
4. Replace the cap and screw it clockwise until secure. Do not overtighten.

2.2 Initial Power On

Press the Power/Fire button once to activate the display. The reticle and ranging data will appear in the viewfinder.

2.3 Diopter Adjustment

To ensure a clear view of the display and target:

1. Look through the eyepiece.
2. Rotate the eyepiece diopter ring (located near the ocular lens) until the display text and reticle appear sharp and in focus.

Image: Diagram showing the various components of the Bushnell Prime 1800, including the Mode button, Power/Fire button, Fast Focus Eyepiece, Extra-Large Laser Aperture Window, Tripod Mount, Ambi Lanyard Holes, and Metal Threaded Battery Door.

3. Operating Modes

The Prime 1800 offers several modes to optimize ranging for different scenarios. Press the Mode button to cycle through the available modes.

3.1 Basic Ranging

With the unit powered on, aim the reticle at your target and press the Power/Fire button. The distance to the target will be displayed instantly.

3.2 ActivSync Display

The ActivSync Display automatically adjusts the reticle and ranging data color for optimal visibility. It displays in black against bright backgrounds and red against dark backgrounds, ensuring clear readability in varying light conditions.

Image: A split image demonstrating the ActivSync display. On the left, a deer in bright conditions shows black ranging data. On the right, the same deer in dark conditions shows red ranging data.

3.3 Angle Range Compensation (ARC) / Bow Mode

ARC provides true horizontal distance to the target, compensating for uphill or downhill angles. This is crucial for accurate shot placement, especially in archery. When in Bow Mode, the compensated distance is displayed.

Image: A diagram illustrating Angle Range Compensation (ARC) in Bow Mode. It shows a hunter in a tree stand ranging a deer, displaying both the line-of-sight distance (32 yards) and the true horizontal distance (23 yards) after angle compensation.

3.4 Brush Mode

In Brush Mode, the rangefinder ignores foreground objects like brush, tree branches, and tall grass, and provides the distance to the background target. This is useful in heavily wooded areas.

3.5 Bullseye Mode

Bullseye Mode is designed for close-range ranging of small targets. It acquires the distance of the closest object in the group, making it ideal for ranging small game or targets without interference from background objects.

Image: An icon representing Bullseye Mode, depicting a target with a bullseye at its center.

3.6 Scan Mode

Press and hold the Power/Fire button and pan across multiple targets. The rangefinder will continuously update the distance, providing real-time readings. This mode updates 4 times per second for fast ranging.

Image: An icon representing Scan Mode, indicating continuous ranging at 4x per second.

3.7 Rifle Mode

Rifle Mode provides ballistic information relevant to rifle shooting, including holdover/holdunder values. Refer to the on-screen display for specific data.

3.8 Unit of Measure Selection

To switch between Yards (Y) and Meters (M):

1. With the unit powered on, press and hold the Mode button for approximately 3 seconds.
2. The current unit of measure will flash. Press the Mode button again to toggle between Yards and Meters.
3. Release the Mode button to save your selection.

4. Maintenance

4.1 Cleaning

To clean the rangefinder, gently wipe the exterior with a soft, clean cloth. For lenses, use a lens cleaning cloth and lens cleaning solution specifically designed for optics. Avoid abrasive materials or harsh chemicals.

4.2 Storage

Store the rangefinder in a cool, dry place when not in use. Remove the battery if storing for extended periods to prevent leakage.

4.3 EXO Barrier Technology

The Prime 1800 features EXO Barrier coating on the exterior lens surfaces. This coating repels water, oil, fog, dust, and debris, ensuring a clear view even in challenging weather conditions. While durable, avoid scratching the lens surfaces.

Image: A circular diagram illustrating the effectiveness of EXO Barrier. One half shows a lens surface without EXO Barrier covered in water droplets, while the other half shows a clear lens surface with EXO Barrier, superimposed over an image of an elk.

5. Troubleshooting

• No Display: Ensure the battery is correctly installed and fully charged. Replace the battery if necessary.
• Unclear Display: Adjust the diopter ring until the display is sharp.
• Cannot Range Target: Ensure the target is within the minimum and maximum ranging distances. Make sure there are no obstructions between the rangefinder and the target. In some conditions (e.g., heavy fog, rain, or very dark targets), ranging performance may be reduced.
• Inaccurate Readings: Ensure you are using the correct operating mode for your target and environment (e.g., Brush Mode for dense foliage, ARC for angled shots).

6. Specifications

Image: Top-down view of the Bushnell Prime 1800, highlighting the all-glass objective lens and its size.

7. Warranty and Support

7.1 Warranty Information

The Bushnell Prime 1800 Laser Rangefinder comes with a Lifetime Warranty. This warranty covers defects in materials and workmanship. For specific details regarding warranty claims and coverage, please refer to the official Bushnell website or contact customer support.

7.2 Customer Support

For technical assistance, troubleshooting, or warranty service, please visit the official Bushnell website at www.bushnell.com or contact their customer service department directly.