Choosing the right transit for surveying depends on the location and the user’s experience. There are two types: non-electronic and electronic. Inspect the exterior before purchasing and consider magnification for large sites. Non-electronic transits are easier to use, while electronic ones require experience and software updates.
The surveyor’s best transit depends on the type of location the tool will be used in, which can range from a small work site to areas multi-acre in size. Choosing a tool also requires consideration of your experience in correctly adjusting and setting the transit for the most accurate results. Additionally, there are two main types of transit for surveyors: non-electronic and electronic.
A surveyor’s transit allows you to measure angles and determine straight lines through a section of land to determine property lines or elevation features of the land. The first step in selecting the best transit for surveyors is to inspect the exterior of the instrument. The exterior surface should be free of dents or debris, indicating a drop or blow to the body of the instrument. Even a lightly damaged Transit can be significantly out of specification, causing repeated failures while attempting to determine accurate angles.
Small construction sites do not require a high magnification type of transit as the viewing area is extremely limited. You can choose a relatively inexpensive Transit with low magnification as it will still offer the same accuracy as a more powerful and expensive model. The selling party or company should ensure rigorous calibration before providing you with transit.
Large construction sites, such as golf course construction areas, require the highest possible magnification for viewing distant objects. You will find that there are a great variety of magnification values, which increase in price as the value increases. Most transit buyers will confer with a tooling specialist to determine the most cost-effective choice for the individual project.
Non-electronic transits have simple viewing optics with horizontal and vertical crosshairs to orient the transit’s position. You must be able to set the transit precisely for accurate readings. The instrument body should be leveled with its leveling screws, by moving the transit level bubble to its center position while the unit stands on a sturdy tripod.
Electronic transits are significantly more difficult to use, incorporating a small computer and screen to show angle measurements. You can choose this type of transit if you are an experienced surveyor. Apprentice surveyors should probably use non-electronic or manual transits to avoid unnecessary and time-consuming errors due to the complicated calibration of an electronic transit.
Non-electronic transits tend to replace mechanical parts easily if damaged over time. Electronic transits, on the other hand, may have software updates for their computer parts. Older electronic transits may not work properly if the software expires or is no longer updated by the manufacturer. Purchasing a surveyor electronic transit therefore requires research into the age of the model and its expected shelf life.
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