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Buying a Rotary Laser Level

November 9th, 2007 · No Comments

A laser Level uses a light beam to determine the even Levels of surfaces. These tools are used by skilled workers such as carpenters, masons, brick layers, concrete workers, and other building contractors. This enables a single worker to determine the correct alignment, saving both time and labor. A rotary laser levels work by shining a grid-like pattern on the surface to be checked, this is useful for laying down floor panels and tiles, also installing wall fixtures, studs, switches, and lighting implements. They are also used for wallpapering, stenciling, wainscoting. Rotary laser levels are extensively used by plumbers to layout pipes and shower fixings, whereas electricians use it to fit light fixings on the ceiling of a room. Other useful applications of rotary laser levels include floor to ceiling point transfer, door, window, and skylight alignment, trim and mill installation, and grade determination.

Features and working of a rotary laser level

A rotary laser level works by shining a rotating laser beam that is detected by a sensor. This sensor is receptive to a certain frequency of laser light. The receiving sensor notifies the operator about the location of the detected beam of light; whether it is high, low, or exactly in the center. Standard features include Dual beams (level and plumb), short and long chalk line “point and shoot” sweep modes, and LED mode indicator. The rotary laser level tool is designed for uncomplicated use. These devices can rotate the laser beam across the complete 360 degree circle, offering excellent accuracy. The maximum rotating speed is around 600 revolutions per minute. It has a fully automatic leveling system with out-of-level shut off. This reduces the overall set up time and increases accuracy. A built-in anti-drift system alerts the user if the ‘height of instrument’ is accidentally altered. Specialized rotary head and weather proof designs make these devices ideal for indoor as well as outdoor use. Modern rotary laser levelers do not require manual leveling. Wireless remote control system gives the operator the flexibility of single handedly controlling the device over long distances. A digital laser detector can detect the laser beam even whilst at a distance or in sunny conditions. A sturdy tripod is essential as it enables the tool to be firmly placed on the ground. A foldable tripod stands increases flexibility and portability. The wavelength of the laser light is approximately 650 to 700 nanometers (NM). These tools offer excellent precision, which is measured around ±3mm at a distance of 30m.

What to look for in a rotary laser level:

Since the intensity of the laser light is strong it has the potential to cause damage to the human eye if shine directly on it; thus all laser levels have to meet the specifications laid down by the Occupational Safety and Health Administration (OSHA). This is a US based organization governing the safety parameters for most power tools.

A person using a laser level would also be performing other tasks, which is why an intrinsic adaptor is need to keep the operators hand free whilst the device is at work. Better visibility and added protection is provided with laser enhancing glasses. An automatic leveling system reduces the total setup duration. Some laser levels have a magnet at the base. Since a magnet has a uniformly smooth surface, this ensures that the tool is placed evenly on the surface so that the laser is level. When the tool is mounted on a tripod, three bubble vials indicate the base levels. These vials usually have a protective shield that shut out the sun to making it easy to read. An automatic out-of-level sensor shuts down the tool, therefore eliminating any chance of taking a wrong reading. A lower power indicator notifies the user that the batteries in the device have run out of power.

Rotary laser levels usually have a vibration reduction feature, which prevents the loss of accurate measurements due to misalignment. Rubber grips are essential as they keep the tool in place whilst in use.

Some reputed manufacturers of rotary laser level tools include CST/Berger, and DeWalt.

Source: Toologics.com


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