Product Description

GL720 Grade Laser

Trimble’s innovative technology ensures higher accuracy than ever before over a variety of machine control and general construction applications. Plus, unique features help reduce beam drift errors and speed up setup and grade changing to optimise worker and machine productivity. The Spectra Precision Laser GL700 Series from Trimble has four robust models, so you can select the right laser transmitter for the right application. Each model in the GL700 Series is designed to be simple to set up and use.

The Spectra Precision GL720 is easy to use and provides long range, high accuracy dual grade capability. With a grade range of ±10% in the X-axis and -0.5 to +25% in the Y-axis, combined with a 900m (3,000 feet) operating range no job is too small for this laser. The GL720 is ideal for general construction and machine control grade applications.

Features & Benefits

     • Active Temperature Compensation
Accurate, stable results regardless of temperature changes
     • Protective Lens Hood
Ensures laser performance in inclement weather
     • Manual Alignment Sights
Allows fast, easy setup
     • High-Powered Visible Beam
For fast setup and excellent performance in high dust conditions.
     • Selectable Rotation Speeds
300, 600, and 900 rpm.
     • Intuiative, Simple Controls
Makes the GL700 series easy to use and learn
     • Field Calibration
Makes it simple to check and adjust the calibration in the field either at the transmitter or via the remote
     • Long Battery Life
Flexible power options, battery life indicator, and a wireless operated sleep mode that saves battery during breaks
     • Fully Sealed, Rugged Aluminium Housing
With weather-resistant control panel, allows you to work in all weather and work conditions. Built-in non-slip carrying handle
     • Grade Reverse
Mirrors the grade setting with the push of a button
     • Automatic Self-Levelling
Over the entire grade range, simplifies setup and ensures repeatable accuracy
     • Spectra Precision Lasers
Proven performance and quality… supported by the industry’s leading service centers
     • Automatic Off Grade Sensor
Prevents incorrect grading … and wasted man and machine hours
     • Large Alpha/Numeric Displays
Transmitter display is visible from ground even on 3 m (10 ft) tripods… no ladder needed

Specifications

Grade Range Accuracy
     • Axis Grade Range X: -10 to +10%
     • Self-Levelling: self levels to 10%
     • Grade Resolution: 0.001%
     • Servo Deadband Accuracy: 4.6 arc seconds

Laser Classification
     • CDRH II (IECI)

Range/Radius
     • Laser – 450 m (1500 ft) with Spectra Precision Lasers machine-mounted receivers

Mounting Threads
     • 5/8” x 11” on all models
     • 3 1/2” X 8” Mounting Adapter optional

Waterproof & Housing
     • Waterproof Aluminum Housing

Dimensions
     • Weight 8.5 kg (18.8 lbs)
     • Height 29.8 cm (11.75 in)
     • Width 25.4 cm (10.0 in)
     • Depth 19.7 cm (7.75 in)

HL700 Laser Receiver

The Spectra Precision® HL700 Laserometer, a highly versatile laser receiver for basic and advanced leveling and aligning applications, is designed for general, concrete and site preparation contractors. The HL700 Laser Receiver is an easy-to-use tool that accurately measures elevations across the site, and is ideal for use with any rotating transmitter.

The HL700 Laser Receiver 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. 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.

The Laserometer 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 HL700 offers a 3-year “No Excuses” warranty.

The HL700 can be used as either a hand-held or rod mounted receiver for a wide range of applications.

Features & Benefits

• Digital readout of elevation – not only will high or low arrows be displayed, but the exact distance from grade will be numerically displayed, which eliminates the need to get “on-grade” to make measurements Large 12.7 cm (5 inch) reception height acquires the beam quickly and makes it easy to stay in the beam
• Anti-strobe sensor stops construction strobe lights from setting off the receiver, and makes it easier to identify true laser beam signals Simultaneous elevation LED’s signal in low light levels and over a longer range for easier reading in poor light conditions
• New CAPTURE function remotely captures and retains a measurement when the display is difficult to see Multiple deadband setting allows adaptation to meet all your job site requirements
• Dust and weatherproof housing withstands a drop of up to 3 m (10 ft) onto concrete for reduced downtime
• Two clamp positions for cut/fill or excavation. Excavation mode puts more reception height and elevation information above grade for higher utilisation in digging and staking applications

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 80 m (260 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 (HL750), 520 nm … 780 nm (HL750U)
• 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)

GL720-AU-K – GL720 Grade Laser with HL700 receiver, recharge kit, 12V cable & case