Laser levels – Self-level laser, rotary laser level, laser transit

What is a Laser Level?

A laser level is a control tool used in the test and measurement industry. This highly precise instrument projects a fixed red or green beam of light to create a straight and level reference point. The laser level is frequently employed in construction, surveying, and other industrial fields where accurate alignment is crucial.

What is a Self-Level Laser Level?

A self-level laser is an advanced version of the standard laser level. This tool automatically adjusts itself to create a level line within a certain range. Even when placed on a slightly uneven surface, the self-level laser will self-correct to ensure that the projected beam is perfectly level. This feature greatly enhances the tool's accuracy and reliability, making it a preferred choice in many industrial environments.

Self-level lasers are critical for many building, plumbing, and general levelling tasks where the ability to automatically find and maintain a level within a set range is advantageous. A manual laser level necessitates the user level the unit themselves by adjusting the thumb screws or consulting bubble vials.

How do self-leveling lasers work? Originally, they self-leveled thanks to pendulum plumb bobs, with a floating platform leveled by wire suspended compensators. More commonly, a pendulum or gimbal technique is used: the pendulum free-floats, using gravity and the help of magnets. Electronic self-level laser tools employ pendulums, but instead of floating, the pendulum has an electronic sensor that directs the pendulum’s movement.

What Does a Laser Level Do?

A laser level serves a multitude of functions in the test and measurement industry. Its primary function is to provide a straight, level line for aligning objects or marking out positions. This is especially useful in construction tasks such as laying out floor tiles, hanging pictures, or installing cabinets. The rotary laser level, another type of laser level, can project a 360-degree horizontal or vertical beam, making it perfect for layout and leveling applications across larger areas.

How to Use a Laser Level?

Using a laser level begins with setting up the tool on a stable surface or tripod. For self-leveling laser levels, allow a few seconds for the tool to auto-adjust. Once the laser level is stable, it will project a level beam onto the desired surface. You can then use this reference line to complete your task with precision and accuracy.

1. Place the level laser on your surface and level it using the manual bubble-level method.
2. Turn on the laser. Mark the surface and reposition to verify your marks before working. Using a self-leveling tool? Just mark and double-check your measurement.
3. Choose a location to measure from – preferably stable, dry, and safe.
4. Verify the stability of your setup.

How to Choose the Right Laser Level?

When selecting a laser level, consider your specific needs. If you require a tool for simple tasks such as hanging pictures, a basic laser level will suffice. However, for larger projects like installing cabinets or working on construction sites, a self-leveling laser level or rotary laser level might be more suitable. Always consider factors such as range, accuracy, and battery life when choosing the right laser level for your needs.

What is a Rotary Laser Level?

A rotary laser level emits a rotating beam of light that creates a horizontal or vertical line over a significant distance. This type of laser level is ideal for outdoor projects such as landscaping, construction, and site grading. For long distances or work in broad daylight, a laser receiver or detector can help to verify measurement. Rotary laser levels generally provide horizontal self-leveling capabilities, finding a true level line by themselves. Some rotary levels also offer grading – the ability to measure and provide a reference for grades, ideal for water drainage uses.

What is a Laser Transit Level?

A laser transit level is a hybrid between a telescope and a laser level that commonly sits on a tripod. Laser transits provide a highly accurate level line and can also measure angles. This type of laser level is typically used in construction and surveying where precise measurements are required. Located on top of the tool, the telescope moves 360° degrees on a horizonal plane and 45° in each direction. Transit levels differ from traditional builder’s levels due to the critical functionality of moving vertically – allowing users to measure object positions and angles with ease, compared to a horizontally-locked in builder’s level.

How are Rotary and Transit Laser Levels Used?

Both rotary and transit laser levels are used in a variety of ways. Rotary laser levels are commonly used in large outdoor projects where a 360-degree level line is needed. On the other hand, transit laser levels are used for tasks that require precise angle measurements, such as building a staircase or setting a grade for drainage. Both types are invaluable tools in the construction and surveying industries.