The Spectra Precision GL622N Dual Grade Laser (Model: GL622N) is a versatile, high-performance tool designed for construction professionals and contractors handling leveling, grading, and alignment tasks. With automatic grade matching, anti-vibration filtering, and dual-axis self-leveling, it simplifies complex jobs, increases productivity, and ensures exceptional accuracy on-site.
Key Features:
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Automatic Grade Matching: The laser communicates wirelessly with the receiver to automatically align to the desired grade, ensuring precision even when the slope is unknown.
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Anti-Vibration Filter: Maintains accuracy during high vibrations or strong winds, allowing work to continue uninterrupted.
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Dual-Axis Grade Capability: Adjusts grades from -25% to +25% on both axes, ideal for steep slopes and drainage installations.
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Self-Leveling in Vertical Mode: Enables 90-degree layouts, building axis alignment, and anchor bolt setups for increased productivity.
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Mask Mode: Virtual masking allows the laser beam to be turned off on up to three sides, preventing interference from reflections or other lasers.
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PlaneLok Technology: Locks the laser to a specific plane, eliminating drift for precise results.
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Rugged and Reliable: Withstands a 1-meter drop onto concrete and 1.5-meter pushover on a tripod, ensuring durability in tough job site conditions.
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Quick Setup and High Range: Covers a 2600 ft (800 m) diameter range for faster, more efficient alignment and grading.
Specifications:
GL622N:
- Leveling Accuracy: ± 0.5 mm/10 m (1/16" @ 100 ft)
- Grade Accuracy: ± 1.0 mm/10 m (1/8" @ 100 ft)
- Grade Temperature Drift Sensitivity: ± 0.3 mm/10 m/°C (1/16" @ 310 ft/°F)
- Grade Range: ± 25% both axes
- Rotation Speed: 0–900 RPM
- Laser Type: 639 nm, Class 2
- Power Source: NiMH battery pack with 35-hour battery life
- Operating Temperature: -20°C to 50°C (-4°F to 122°F)
- Dust/Waterproof Rating: IP67
HL760 Receiver:
- Reception Height: 127 mm (5 in.)
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Six On-Grade Sensitivities:
- Ultra-Fine: 0.5 mm (~1/32 in.)
- Fine: 2 mm (~1/8 in.)
- Coarse: 10 mm (~1/2 in.)
- Power Source: 2 AA batteries with 60+ hours of continuous operation
- Operating Temperature: -20°C to 50°C (-4°F to 122°F)
Included Accessories:
- GL622N Transmitter
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HL760 Receiver with C70 Rod Clamp
- RC602N Remote Control
- NiMH Battery Pack and Charger
- Protective Carrying Case
- Instruction Manual
Frequently Asked Questions (FAQ)
Q1: How does automatic grade matching work?
The laser communicates with the receiver to align to the on-grade position automatically, calculating the required grade for you.
Q2: What is the battery life of the GL622N?
The NiMH battery pack provides up to 35 hours of operation on a full charge.
Q3: Can it operate in extreme weather?
Yes, it operates in temperatures ranging from -20°C to 50°C (-4°F to 122°F) and is rated IP67 dust and waterproof.
Q4: What is Mask Mode?
Mask Mode allows the laser beam to be turned off on up to three sides, preventing interference from glass reflections or nearby lasers.
Q5: Can it handle steep slopes?
Yes, it adjusts grades from -25% to +25% on both axes, making it ideal for drainage and steep slope projects.
Q6: What type of maintenance is required?
The GL622N is rugged and low-maintenance. Regular cleaning of the laser aperture and ensuring the battery pack is charged are the primary requirements.
Q7: Can the GL622N be used in heavy vibration conditions?
Yes, the anti-vibration filter maintains accuracy even in high-vibration environments or strong winds, ensuring consistent performance.
