Product Description

GL422N Grade Laser

The automatic, self-levelling Spectra Precision® GL422N dual grade lasers is the most rugged, cost-effective lasers that do three jobs—level, grade, and vertical alignment. Even in harsh job site conditions, the GL422N delivers consistently reliable and accurate performance, enabling you to work faster and smarter.

The rugged GL422N lasers can withstand drops of up to one metre (three feet) onto concrete and tripod tip-overs up to 1.5 metres (five feet). This strength, combined with full weatherproofing and dust proofing, reduces downtime and lowers repair costs over the life of the product.

Each GL412N and GL422N laser system now includes the advanced HL760 Digital Readout (DRO) receiver that provides automatic Grade Match, PlaneLok and Fingerprint function.

Grade Match measures and displays the existing grade over unknown ground. As a consequence it eliminates time consuming and error prone calculations
PlaneLok automatically locks on to an existing horizontal elevation or vertical alignment point which eliminates all drift or possibility of error due to improper calibration or weather.

The unique “Fingerprint” function only accepts the beam from the laser it is paired with.

The CR600 receiver is also an option when a machine mounted display elevation is required.

Features & Benefits

     • Menu driven user interface reduces learning time and eliminates complex button pressing to activate advance features
     • RC402N radio remote control allows control of all laser functions from up to 330feet (or 100 metres
     • Maintains performance even in rainy, dusty and other harsh job site and weather conditions – IP66 environmental rating
     • Durable design reduces downtime due to drops and tripod tip-overs
     • Automatic Grade Match eliminates time consuming and error prone calculation
     • Mask mode eliminates interference with other crews on the job site
     • Comes with choice of CR600 or HL760 receivers so you can choose the best option to suit your application

Specifications

     • Levelling accuracy: ± 1.5 mm/30 m, 1/16“ @ 100 ft, 10 arc seconds
     • Operating diameter: appr. 800 m (2600 feet)
     • Grade range: -10% to +15% (Dual Axes GL422N)
     • Rotation: 300, 600 rpm
     • Laser type: red diode laser 650 nm
     • Laser class : Class 2
     • Self-levelling range: ± 5° (±9%)
     • Levelling indicators: LCD indications and LED flashes
     • Radio range (HL760): up to 100 m (330 ft)
     • Power source: 10.000 mAh NiMH battery pack
     • Battery life: 35 hours NiMH; 50 hours alkaline
     • Operating temperature: -20°C to 50°C (-4°F to 122°F)
     • Storage temperature: -20°C to 70°C (-4°F to 158°F)
     • Tripod attachments: 5/8 x 11 horizontally and vertically
     • Dust and waterproof: Yes – IP66
     • Weight: 3.1 kg (6.8 lbs)
     • Low voltage indication: LCD battery indicator
     • Low voltage disconnection: Unit shuts off
     • Warranty: 5 Years

HL760 Laser Receiver

The HL760 features a digital readout of elevation that provides a numeric display of ± 5 cm (± 2 inches). The readout is displayed on the large front and rear LCD’s and shows exactly how far the elevation is from on-grade for fast and easy cut/fill readings. Accurate measurements can be made without moving the rod clamp, saving time and increasing productivity. Selectable units of measure can be displayed meeting your application – mm, cm, ft, in or fractional inches.

A 12.7 cm (5 inch) reception height, more than double the industry standard, allows quick acquisition of the laser beam. An anti-strobe sensor prevents false readings from site strobe lights.

Radio communication allows working with another HL760U or HL760 for long range remote display and monitoring capability. A new function termed “Fingerprinting” links the receiver with a particular laser. Once the receiver is paired with the laser transmitter, the receiver has the ability to filter out other lasers that strike the receiver and only accept the laser that it is paired with. The HL760U also provides grade matching and PlaneLok capabilities with the 400 series lasers.

The Digital Readout Receiver is designed to survive the tough construction site conditions; it is totally waterproof and can withstand a drop of 3 metres (10 feet) onto concrete. The HL760 offers a 3-year “No Excuses” warranty.

Features & Benefits

• Fingerprint function filters out other lasers that strike the receiver and only accept the laser that it is paired with
• No need to go “on-grade” to measure: saves considerable time
• Reduces rework by allowing remote monitoring
• Increases reliability, accuracy and durability

Specifications

• Working Radius: 1 m – 460 m (3 ft – 1500 ft)
(Laser dependent):
• Laser Detection Height: 127.0 mm (5“)
• Numeric Readout Height: 102.0 mm (4“)
• Internal Radio: Full 2-way communication, operation and security lock with paired device
• Radio Working Radius: Up to 220 m (720 ft), depending on orientation, conditions and paired device
• Accuracy (Deadband):
– Ultra Fine 0.5 mm 0.02 in 1/32 in
– Super Fine 1.0 mm 0.05 in 1/16 in
– Fine 2.0 mm 0.10 in 1/8 in
– Medium 5.0 mm 0.20 in 1/4 in
– Coarse 10.0 mm 0.50 in 1/2 in
– Calibration 0.1 mm 0.01 in 1/64 in
• Reception Angle: ± 45° minimum
• Detectable Spectrum: 610 nm … 780 nm (HL760), 520 nm … 780 nm (HL760U)
• Beeper Volumes: Loud = 110 dBA, Medium = 95 dBA, Low = 65 dBA
• LED Grade Indicators: Front, Green on-grade, Red Hi, Blue Low
• Power Supply: 2 x 1.5 Volt “AA” batteries
• Battery Life: 60+ hours
• Automatic Shut Off: Selectable, 30 min, 24 h, Off
• Environmental: Waterproof, Dustproof to IP67
• Weight without clamp: 371 g (13.1 oz.)
• Dimensions without clamp: 168.0 x 76.0 x 36.0 mm (6.6” x 3.0” x 1.4”)
• Operating Temperature: -20°C…+60°C (-4°F… +140°F)
• Storage Temperature: -40°C…+70°C (-40°F…+158°F)

 

GL422N-K – GL422N Grade Laser with HL760 receiver, RC402N remote, recharge kit & case