To determine the degree of uniformity and magnitudedeviations of the constructed elements of the structures are traditionally used levels and plumb bobs. At the heart of the work of both devices is the principle of gravitational gravitation, inducing a rope with a sink to be located strictly vertically, and an air bubble pointing to the middle of the scale to show a strictly horizontal position. However, such a familiar and seemingly reliable instrument still gives some error. Thus, the bubble level, even the best, according to the passport data, has a maximum deviation of 5 mm for every 10 m, but in reality the situation is somewhat worse.
In addition, in some cases it is not enough simplydesignate certain lines along which a building or structure will be erected. Builders need an instrument that makes it possible to visualize the position of planes in space.
Working with the laser level is much easier.This device creates visible lines, displayed on the walls, and if necessary, then on the floor or ceiling, which is quite easy to make the markings. Some samples are equipped with several optical prisms, which makes it possible to see the corresponding number of vertical, horizontal or inclined levels simultaneously.
Before using the level, you shouldin detail to familiarize with the instruction on its operation. By the way they display marks, they are divided into linear, point and combined. The rotational module included in the design makes it possible to rotate the "head" around the axis, and thus it is possible to represent the entire plane and the places of its intersection with other surfaces.
Problems solved with the help of beam marking,they indicate the lines of communication, the location of partitions, water and sewer pipes, allow to check the verticality or horizontality of the already assembled elements of the structure, especially in the process of multi-storey construction. Originally they were designed for indoor work.
This raises the question of how to usea level in the street or an open construction site, with bright daylight, which makes it difficult to visually fix the mark of the laser beam. To solve this problem, special radiation receivers are used, which are part of the device design. Before they were invented, the external use of this equipment was limited to a point variant, the light lines were poorly visible.
There are also features in how to uselevel, depending on the type of its body. They are flat and round. Each type has its advantages and disadvantages. Round levels have a swivel base, and are also often equipped with a function for measuring angles, but flat ones can be positioned close to the wall.
Self-leveling function and other useful optionsthey make working with plane builders very simple, for the operation of this technique does not require special skills, any builder will quickly figure out how to use the level.