How to check the level for accuracy
How to check the level for accuracy
Buying in the building store level, you needbe sure that his testimony is correct and accurate. Since the purchase, there are 14 days for the return of the goods. During this time, you can check the accuracy level with simple instruments.
In order for the repair work, in the processwhich used the building level, were not in vain, before use, the device should be checked for accuracy. You can do this in 2 ways: checking vertically and horizontally.
Verification by vertical
In order to obtain an ideal vertical,You need to screw in the wall surface and attach a thread to it with a load at the end. The length of the thread should be slightly larger than the length of the building level, which will be tested. Thus, an ideally vertical line is obtained, it is also a thread. Next, you need to make 2 control points for the measurement. To do this, screw in the 2 self-tapping screws in such a way that the thread slightly touches the screws of the screws. In this process, it is extremely important that the plumb line slides over the surface of the screw head and does not deviate. On this depends the accuracy of future indications of the level. When the screws are exposed, the thread with the load can be removed. Now the level must be attached to the screws of the screws and pay attention to the bubble. It should be exactly in the middle of the marks - the boundaries set at the factory. If the bubble is clearly in the center of these marks, it means that the level is set correctly and shows the ideal vertical. If the bubble is displaced in one direction or the other, then, unfortunately, the level is not suitable for further work. In repair and construction it can not be used. Such goods with a saved check can be replaced in the store.Horizontal check
This verification method will requirehydro level and 2 sheets of paper. The hydro level is a very simple, cheap and very useful device in construction. It consists of 2 plastic vessels with labels and connecting pipes. To create the ideal horizontal, it is necessary to fill the water level with water in such a way that in each vessel the liquid is at an average elevation. Then 2 sheets of paper should be attached to the wall with adhesive tape at a distance from each other smaller than the length of the level. With the help of an adhesive tape or helper, the first flask should be fixed on a piece of paper and note the water level. After this, the same procedure should be followed with the second flask. When the risks are identified, the hydro level can be removed. These 2 risks are reference points for checking the construction level. By attaching the device clearly to the marks, the bubble in the window should be exactly in the middle of the marks. Only in this case the level can be considered serviceable. If the bubble deviates to the side - the level can not be used, since its readings will not be correct.
