Common Mistakes to Avoid When Using an Auto Level

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An auto level is a very easy survey instrument to work with and provides the user with extremely accurate results. However, as with all instruments, there are certain mistakes one can make that will influence the accuracy of the measurements it takes. In this article, we will discuss the principles of an automatic level as well as explain what to avoid when doing auto-level survey calculations.

What Are the Working Principles of Automatic Level?

The simplest way to explain the workings of an auto level is that it makes use of a compensator mechanism. This mechanism has a combination of fixed prisms and one moving prism. The moving prism is suspended on a pendulum. The pendulum is what provides a horizontal reference. The compensator is what ensures that the ray of light shining through the centre of the reticule is horizontal and exact. If the compensator is not set up correctly then the auto level will not be accurate.

What to Avoid When Doing Auto Level Survey Calculation

While simple to avoid, there are some mistakes one should watch out for when using an auto level. These mistakes include:

Set-Up: It is important to always check that your auto level is correctly set up. This should be done every time before taking a measurement. While this might seem tedious, it will ensure that no mistakes are made and inaccuracies can be avoided. Remember to check that the tripod is level and has been fastened securely.
Compensator Calibration: The compensator is probably one of the most important aspects of an auto level. It is, therefore, extremely important to ensure that it has been calibrated correctly before using the auto level. If this is not done, the compensator will not be able to maintain a level line of sight which will result in inaccuracies.
Levelling Rod: An easy mistake to make is using the wrong levelling rod. If the wrong rod is utilised or the rod is not correctly calibrated, then measurements can be inaccurate.
Temperature Changes: While one might not realise it, temperature fluctuations can have an impact on an auto level. It is important to allow the auto level to acclimatise to the new environment and temperatures before taking measurements. If this is not done, readings and measurements could lack accuracy.
Maintenance: As with all things in life, it is important to maintain an auto level. Ensure that the auto level is always clean. It is also important to always ensure that the auto level is dry before storing it. It is advisable to inspect the instrument before and after use to prevent and detect damage.

Where to Find an Auto Level

Afgen stocks a variety of auto levels that are all of the highest quality and accuracy. The three auto-level brands we stock are Kolida, Pentax, and Topcon. Depending on your specific requirements, we at Afgen will be able to guide and assist you when deciding between these three brands.