Dual Grade Laser with 25% Grade Range
Spectra Precision® GL622N and GL622IR Grade Lasers — Easy-To-Use, Full-Featured Automatic Grade Lasers,
The GL622N and GL622IR Dual Grade Lasers are rugged, automatic self-leveling lasers with grade capability from -25% to + 25% and can be used for a wide variety of grade, excavating and alignment applications by general and speciality contractors. (The GL622IR is used for horizontal alignment only)
The GL622IR model features an invisible infrared laser beam and is a Class 1 laser, the safest laser classification possible. This type of beam is required in special applications where a visible beam is a safety hazard, distracting or otherwise is not permissible.
All lasers come with a radio remote control that provides fully functional capabilities up to 150m (500 feet) from the laser transmitter – even from the cab of a machine. The graphical, menu-driven interface makes the lasers simple and easy to use and can be set to 16 different languages. The ability to operate the laser whilst working away from the laser transmitter can significantly reduce set-up times and increase productivity.
Each laser package includes the advanced HL760 Digital Readout Receiver that can be used at an operating diameter of up to 800m (2,600 feet). The Digital Readout allows the user to get to the on-grade position faster as the distance is displayed to the on-grade position in mm, or inches, fractional inches. Wireless communication between the receiver and the laser allows advanced functionality such as Automatic Grade Matching to be achieved. Automatic Grade Matching basically means that the laser moves to the on-grade position on the receiver and the grade is then calculated – this is generally used when a constant fall is desired but the grade may not be known (renewing existing driveways or matching existing surfaces). The HL760 can be paired with another HL760 turning the second receiver into a remote display that could allow a machine operator to see what the rodman is seeing when dipping for levels.
The GL622N is self-leveling in vertical, allowing more productivity by being able to carry out more tasks such as building axis alignment or setting 90 degrees or aligning anchor bolts. The GL622IR is not self-leveling in the vertical axis. Designed to be used on the toughest jobsites, the GL600 series can withstand a 1m (3 feet) drop.
■Ultimate Control of X/Y Axes
■ Fully automatic up to +/-25% grade on X/Y axes
■ Automatic Axis Features (X Axis – only GL622N/GL622IR)
■ High Precision Axis Alignment (only GL622N/GL622IR)
■ Simplified Grade Match: measures and displays the existing grade over unknown ground
■ Complete PlaneLok: automatically locks on the laser beam to an existing elevation
■ Alignment range for both axes is +/-40°
■ Fully automatic vertical leveling (not GL622IR)
■ Fingerprint function – detects only the laser beam of the paired transmitter Built for Today’s Jobs
■ Withstands a 1 m (3 ft) drop onto concrete
■ Long operating range – 800 m (2.600 ft) diameter
■ Long operating radio range – 150 m (490 ft)
■ Intuitive keypad and graphic display
■ Password secured
■ Mask mode
■ Various power options
■ Automatic temperature compensation
■ Electronic leveling vibration filter