The Best Grade Lasers Available from Spectra Precision. Part I

The Spectra UL633N Grade Laser

Arguably the best grade laser level on the market the Spectra UL633N is the only construction laser allowing total automatic control of all three axes (X/Y/Z). Control of the Z axis is accomplished through the new “fan beam” technology, while control of the X and Y axis utilizes a dual radio connection. Benefiting of all the know-how of Spectra Precision, the UL633N Universal Laser is appropriate for all applications producing an easy, fast and accurate job.

The Universal Laser can provide precise automatic axes alignments to two desired points without positioning the receivers 90 degrees perpendicular. This allows contractors to easily perform dual axis alignments for applications such as grade work on sports fields, parking lots, tennis courts, and driveways. Since the UL633N Universal Laser can work with two receivers simultaneously, contractors can measure an unknown grade value automatically between two elevation points in Grade Match mode.

On job sites where maximum accuracy and stability is required such as airport runways, elevations can be precisely secured using the automatic Dual Axis PlaneLok feature. This capability locks and maintains the laser reference plane to two receivers placed at existing elevation points, eliminating drift or possible errors caused by vibrations or temperature changes. The UL633N Universal Laser is also the first laser where the plumb beam can be changed into a rotating fan beam which can be detected by the SpotFinder SF601.

The UL633N and the Spot Finder offer additional versatility for 90-degree layout applications on concrete pads as well as indoors for wall layout. Activating the SpotLok mode ensures the UL633N locks and holds the plumb beam automatically to the Spot Finder at the desired direction or elevation point offering a precise alignment to avoid rework.

Multiple Applications – the UL633N Universal Laser is the only construction laser that provides the ability to control level, alignment, single/dual grade and even do grade in vertical allowing you to do more work with one tool.
Automatic self-levelling – provides fast, easy set-up for horizontal level, grade or vertical alignment
Automatic Grade Matching – meaning the laser moves to the on-grade position on the receiver automatically by communicating wirelessly with 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)
Grade Range – large, fully compensated grade range from -25% to 25% – keeping the laser levelled no matter what grade you need reducing errors and improving productivity.
Includes – two HL760 advanced digital readout receivers and the SF601 SpotFinder
Anti-Vibration Filter – a laser can be affected by high vibration or strong wind, especially when the laser is mounted on a tall tripod –the UL633N has an anti-vibration filter that can be set according to the conditions allowing work to continue regardless of wind conditions or excessive vibrations.
Temperature compensation & PlaneLok – as temperature fluctuates throughout the working day, the internal components of a laser can expand and contract which can cause some additional error without the user noticing. This is firstly resolved through the automatic temperature check that the laser performs where the internal software calibrates the laser to its optimal performance based on the temperature. Additionally the PlaneLok function can be activated. This keeps the laser beam fixed to a receiver in a set a position eliminating any error that can be caused by fluctuating temperatures, keeping the laser accurate and error free.
Automatic Axis Alignment – A critical factor when working with grade is alignment to the grade hub. If an alignment is off, error can be introduced and exaggerated. The UL633N has an Automatic Axis Alignment function, allowing the user to set-up simply and quickly, maintaining accuracy and eliminating costly errors. The Automatic Axis Alignment function has the added benefit of being able to simultaneously align on two axes not at 90 degrees to each other. This is especially useful when trying to construct envelope set-ups on a concrete pad or when setting a dual grade for a drainage channel intersecting another channel at an angle not at 90 degrees to the main run.
Vertical Grade – The Spectra Precision UL633N vertical grade capabilities are enhanced with the use of the SF601 Spot Finder. This accessory allows automatic alignment of the plumb beam. This provides fast alignment to a manhole on a first day set-up, or to quickly set-out a 90 degree angle. Additionally the Spot Finder can be used to check the grade in pipe on a second day set-up. The beam locks onto the Spot Finder and displays the actual grade on the remote and the laser, saving time and eliminating lengthy manual calculations.
Rugged – Designed to operate on the toughest of jobsites, the UL633N can withstand a 1m (3 ft) drop directly onto concrete or 1.5m (5 ft) pushover on tripod, eliminating costly repairs.
Mask Mode– The UL633N has a virtual masking function that allows the laser beam to be turned off in up to 3 sides, avoiding false reading from glass reflections or interfering with other lasers on the same jobsite.

Many customers who have purchased the UL633N Grade laser claim it may be the best laser they've ever owned. This is due to its speed and versatility on the jobsite allowing you to key in a massive percentage grade, detecting movement avoiding errors, Finding existing grade at the push of a button using Grade Match. The UL633N earns its universal title by functioning as a pipe laser whilst laying Horizontal.