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Spectra Precision Laser GL622 Dual Grade Laser
Easy-To-Use, Full Featured Automatic Grade Laser
The GL622 is a dual slope grade laser. This rugged, automatic self-leveling laser has a grade capability of ± 25% and can be used in a wide variety of grading, excavating and alignment applications by general and specialty contractors. An intuitive keypad and graphic display mae all grade and alignment functions easy to use and greatly reduces setup time and increases productivity.
The GL622 includes the RC602 full-function radio remote control which offers advanced automatic features like Grade Match, PlaneLok and Automatic Axis Alignment. The remote as well as the transmitters have an intuitive graphic display which is back-lit for ease of viewing. Contractors can do everything with the remote control that they can do at the laser keypad, up to 330 feet away—even from the cab of a machine. The ability to make grade changes remotely can significantly reduce setup time and speed operations.
Each laser package also includes the advanced HL750 Laserometer that provides a digital readout of elevation and can be used at an operating diameter of up to 2,600 feet. Wireless communication between the HL750 Laserometer and the transmitters provide automatic Grade Matching which allows measurement of unknown grade values between two points. For applications that require maximum stability and accuracy, PlaneLok is available in both the horizontal and vertical planes. PlaneLok automatically locks the beam on the receiver and keeps it on grade. This reduces typical environmental factors that may induce an error. In addition, the HL750 Laserometer can communicate with another HL750 for long-range wireless remote display and monitoring.
The GL622 Grade Lasers self-plumb in the vertical position to allow an even wider range of applications such as such as anchor bolt installation, form, tilt up, and curtain wall plumbing. With its rugged design, the GL622 Grade Lasers can survive a drop of up to 3-feet on concrete. The laser also features IP67 moisture and dust sealing to handle the tough construction environment.
The GL622 Grade Lasers retains all well accept functions of the GL500 series lasers with additional advanced features and benefits offering much more versatilities. |
| Spectra Precision GL622 Laser Package INCLUDES |
- GL622 Dual Grade Laser Transmitter
- RC602 Remote Control
- HL750 Laser Receiver
- Clamp for Receiver C70
- Worldwide Charger
- NiMH Rechargeable Battery Pack
- Carrying Case
- Operating Manual
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| Spectra Precision GL622 Key FEATURES and BENEFITS |
- GL622 is a dual grade laser with a compensated grade range of
-25% to +25%. Vertical and horizontal setups are also compensated
- Quick setups with the 2-way radio remote control
- Simplifies level, grade and vertical allignment setups
- Long operating range 2600-foot diameter
- Intuitive keypad and graphic display
- Password secured
- Automatic temperature compensation
- Electronic Leveling Vibration Filter dampens vibrations typically experienced on tall tripods, in high winds, or on high vibration jobsites
- Very rugged with low service costs; takes a 3-foot drop on concrete
- Mask mode eliminates interference with other crews on the jobsite
- Radio communication between the laser and HL750 Laserometer allow advanced features and remote display capabilities
- Grade Match displays the existing grade over unknown ground and eliminates time consuming and error prone calculations, time spent searching for grade plans, and over excavating
- PlaneLok automatically locks on to an existing elevation or vertical alignment point which eliminates all drift or possibility of error due to improper calibration or weather
- 5 Year “No Cost” Warranty
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| Spectra GL622 Laser General Construction APPLICATIONS |
- Leveling concrete forms, footers and Pads
- Precision placement of concrete for critical specification surfaces over long distance and with laser controlled screeds (Automatic PlaneLok)
- Drift free general construction vertical allignment and plumb for plus form, tilt up and curtain wall plumbing (Automatic PlaneLok)
- General construction vertical alignment and plumb such as anchor bolt and form alignment
- “Over the top” sewer and storm drain pipe installations
- Sports fields, driveways, ramps and drainage
- General construction grading and excavating
- Steep slope road embankments and ditch banks
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| Spectra Precision HL750 Laser Receiver APPLICATIONS |
- Trenching
- Remote grade checking with cable free remote display
- Wireless monitoring of foundations and steel erections
- Risk free monitoring of tilt up wall position
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| GL622 Laser Package Component COMPARISION CHART |
| Model |
Receiver |
Receiver Accessories
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Remote |
| GL622 |
HL750 |
C70 Rod Adapter |
RC602 |
| GL622-1 |
(2) x HL750 |
(2) x C70 Rod Adapter |
RC602 |
| GL622-14 |
CR600 |
C50 Rod Adapter and
C51 Magnetic Mount |
RC602 |
| GL622-DR |
HL750
DR400
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C70 Rod Adapter |
RC602 |
All part numbers include laser transmitter, case and
NiMH rechargeable battery pack and charger |
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| GL622 SPECIFICATIONS |
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| Spectra Precision GL622 Advantage vs GL422N |
- Larger grade range (+/-25%) without pre-tilting offers more versatility at different jobsites
- Larger self-leveling range (+/-14°) offers easier and quicker setups
- NiMH-battery pack that can be recharged externally using an universal world wide charger and alkaline batteries for backup – more flexibility, no downtime caused by power loss
- Variable rotation speed from 300 to 900 rpm meets all jobsite requirements
- Y- or X- Axis PlaneLok eliminates all drift or possibility of error due to improper calibration or weather
- Y- or X- Axis Automatic Grade Match - Quickly, accurately, and AUTOMATICALLY finds and displays the existing grade over unknown ground
- Y- or X- Axis Automatic Axis Alignment for higher accuracy
- Large, intuitive, graphic display and additional grade indication varieties – easier to use, more flexibility
- GL622 has Perpendicular Plumb beam for 90 degree layout in Vertical
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| Spectra Precision GL622 vs Spectra GL422N Feature Comparison Chart |
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| Model |
GL622 |
GL422N |
| Laser Beam |
650nm, <5 mW, class 3A/3R |
635 nm, <5 mW, class 3A/3R |
| Grade Range |
Y/X-Axis: +/-25% |
Y/X-Axis:-10 to +15%
(pre-tilt required above 9%) |
| Level Accuracy |
10 arc sec (1/16 in @ 100 ft) |
10 arc sec (1/16 in @ 100 ft) |
| Grade Accuracy |
+/- 3 mm @ 30 m (1/8 in @ 100 ft) |
+/- 3 mm @ 30 m (1/8 in @ 100 ft) |
| Operating Range (radius) |
1300 ft / 2600 Diameter |
1300 ft / 2600 Diameter |
| Radio Remote Control Range |
330 feet |
330 feet |
| Grade Reverse |
Y/X (both axes) |
Y/X (both axes) |
| Auto Axis Align |
Y- or X-axis selectable |
No |
| Auto Grade Match |
Y- or X-axis selectable |
Y axis only |
| Auto PlaneLok |
Y- or X-axis selectable |
Y axis only |
| Vertical Operation |
Auto + PlaneLok |
Auto & PlaneLok |
| Electronic Mask Mode |
Yes |
Yes |
| Variable Rotation Speed |
300, 600, 900 rpm |
300, 600 rpm |
| Battery life (NiMH/alkaline) |
35 hours / 40 hours Alkaline |
35 hours / 50 hours Alkaline |
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