1. Introduction
Thank you for choosing the Firecore 3-Line Green Laser Level HV-3G. This high-precision laser level is designed for accurate horizontal and vertical alignment tasks in both indoor and outdoor environments. Featuring a bright green laser, auto-correction, and multiple operating modes, it provides reliable performance for various construction and measurement applications. Please read this manual carefully before use to ensure safe and optimal operation.
2. Safety Information
Laser Safety: This product is a Class 2 laser device with an output of less than 1mW. Direct exposure to the laser beam can cause eye injury. Always wear the provided laser goggles when operating the device. Do not stare directly into the laser beam or point it at others.
- Do not disassemble the device. Repairs should only be performed by authorized service personnel.
- Keep the device out of reach of children.
- Use only specified batteries.
- Avoid operating the device in explosive atmospheres.
3. Package Contents
Verify that all items are present in the package:
- Firecore HV-3G Laser Level Unit
- AAA Dry Batteries (4 pieces)
- Laser Receiver
- Receiver Base
- Laser Goggles
- Dedicated Strap
- Laser Target
- Japanese Instruction Manual (this document)
- Dedicated Aluminum Case
Image: All included accessories for the Firecore HV-3G Laser Level, neatly organized in its dedicated aluminum case.
4. Key Features
- High Precision 3-Line Green Laser: Projects two vertical lines and one horizontal line with high accuracy and thin beams. The 520nm direct green laser diode unit offers excellent visibility indoors and reduces eye strain during prolonged use. This design minimizes measurement errors for precise alignment.
- Durable and Robust Design: Built to withstand demanding construction environments with IP54 dustproof and waterproof rating. It is also designed to be shock-resistant, cold-resistant, and heat-resistant. The stable aluminum aviation base has passed a 1-meter drop test, ensuring reliability on the job site.
- Dual Power Options & Extended Operation: Operates for approximately 12 hours continuously when using 4 AAA alkaline dry batteries. This provides flexibility and extended working time.
- Line Fixing Mode & Automatic Correction: Features a magnetic damping system for stable operation. The line fixing mode allows for projecting laser lines at an angle, useful for tasks like stair installation or pipework. In automatic correction mode, the laser lines will flash if the device is tilted beyond ±3°, indicating it is out of range.
- Pulse Mode for Outdoor Use: Switch to pulse mode for enhanced visibility outdoors. When used with a dedicated laser receiver (Firecore FD10G, sold separately), the detection range extends up to 50-60 meters, making it highly practical for outdoor work.
Image: The Firecore HV-3G Laser Level projecting bright green horizontal and vertical lines for precise alignment.
Image: The Firecore HV-3G Laser Level covered in water droplets, illustrating its IP54 dustproof and waterproof capabilities for reliable use in challenging conditions.
5. Setup
5.1 Battery Installation
- Open the battery compartment cover located on the side of the laser level.
- Insert the 4 AAA alkaline dry batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Image: The Firecore HV-3G Laser Level displaying its battery compartment, illustrating the use of 4 AAA batteries for power.
5.2 Initial Placement
Place the laser level on a stable, level surface or mount it on a tripod. Ensure the device is within ±3° of level for automatic self-leveling to function correctly.
6. Operating Instructions
6.1 Power On/Off
To power on the device, slide the main switch to the "ON" position. The laser lines will activate. To power off, slide the switch to the "OFF" position.
6.2 Automatic Correction Mode
When the device is powered on and placed on a surface within ±3° of level, it will automatically self-level, and the laser lines will become steady. If the device is tilted beyond ±3°, the laser lines will flash to indicate it is out of range. Adjust the device's position until the lines become steady.
Image: The Firecore HV-3G Laser Level showing its auto-correction feature, where laser lines flash if the device is tilted beyond 3 degrees.
6.3 Line Fixing Mode (Manual Mode)
To use the device for projecting angled lines (e.g., for stairs or handrails), activate the line fixing mode. In this mode, the self-leveling function is deactivated, allowing you to lock the laser lines at any desired angle. Refer to the device's control panel for specific button presses to engage this mode.
Image: The Firecore HV-3G Laser Level operating in line fixing mode, projecting stable angled lines for specialized tasks.
6.4 Pulse Mode (with Receiver)
For outdoor applications or when working in bright conditions, switch the laser level to pulse mode. This mode allows the laser receiver to detect the beam over longer distances (up to 50-60 meters). The dedicated Firecore FD10G receiver (sold separately) is required for this function. Follow the receiver's instructions for detection.
7. Maintenance
- Keep the laser level clean and dry. Use a soft, damp cloth to wipe the exterior. Do not use harsh chemicals or abrasive cleaners.
- Clean the laser windows regularly with a soft, lint-free cloth to ensure clear beam projection.
- When not in use for extended periods, remove the batteries to prevent leakage and store the device in its dedicated aluminum case in a cool, dry place.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged durations.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Firecore |
| Model Number | HV-3G |
| Laser Type | Green Laser (520nm Direct Diode) |
| Laser Lines | 3 Lines (2 Vertical, 1 Horizontal) |
| Auto-Correction Range | ±3° |
| Laser Safety Class | Class 2, Output < 1mW |
| Power Source | 4 x AAA Alkaline Dry Batteries |
| Continuous Operation Time | Approx. 12 hours (with 4 AAA batteries) |
| Dustproof/Waterproof Rating | IP54 |
| Pulse Mode Range (with receiver) | 50-60 meters (with optional Firecore FD10G receiver) |
| Material | Plastic, Aviation Aluminum |
| Item Weight | 1 Kilogram |
| Package Dimensions | 25.7 x 20.3 x 20 cm |
9. Troubleshooting
- Laser lines are flashing: This indicates the device is tilted beyond its ±3° auto-correction range. Adjust the device's position until the lines become steady.
- No laser lines: Check if the device is powered on and if the batteries are correctly installed and have sufficient charge.
- Lines are dim or not visible outdoors: Ensure the device is in pulse mode and use a dedicated laser receiver for outdoor visibility.
10. Warranty and Support
For warranty information and customer support, please refer to the contact details provided with your purchase or visit the official Firecore website. Keep your purchase receipt as proof of purchase for warranty claims.
