Working Procedure Of Total Stations

By Author: sudarshan singh
Total Articles: 327
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Total Station has four-high-speed servomotors. Their presence provides fast and exact prompting on a reflector, allows to be switched quickly and effectively in various operating modes: search of a reflector, tracking in the simple and robotized modes. The system of automatic prompting and tracking tacheometer with servo-drivers raises productivity of works more than on 50 %. This kind tacheometer has the system including the module of tracking, placed in the module of a telescope, and active reflector RMT. The active reflector (some kinds are issued) necessarily includes an active radiator-diode which radiation is fixed by the module, and does not suppose prompting on other reflectors or reflecting surfaces, glasses and so forth.Carefully take the total station out of the box. The handles on top of the total station have been known to fall off or break so it is best to hold the total station by the handle but also with support from beneath it.Set the total station on top of the tripod and tighten the screw to hold it on. Make sure the vertical and horizontal tangent screw locks are on so the unit does not swing around while ...
... it is adjusted.

Take a look through the optical plummet to see how close the cross-hairs are to the datum. It is sometimes helpful to put your foot near the datum to get a better idea of how much you will need to adjust the total station’s position.Take the two legs that were not stamped into the ground and with your eye to the optical plummet, move the legs to where the cross-hair is just closer to the stationary leg and the bull’s eye bubble level is centered.Once the optical plummet is centered and the total station is close to level, the legs can be stamped into the ground as well. Minor height adjustments of the legs will likely be needed at this time to center the bubble.

The optical plummet cross-hair may be slightly off after this, but this should not be a problem as long as it is only off by a centimeter or so. Then retighten the screw holding the total station in place. Make sure the data logger is connected and that both units are on. Either a new or existing job will need to be used and before each set up, information on the point and instrument height will need to be reset. Instrument height should be measured from the datum to the dot on the side of the total station at the level of the scope. Be sure to use the same units as your survey is being conducted in. When sighting a back sight with known distance and angle, the circle will need to be solved to since when the unit is turned off, the angle resets to zero. Enter the rod height as well to be sure points are recorded at the correct elevation.When operating the range pole, be sure to keep the bubble centered while the point is being shot. When operating the total station, be sure to tell the range pole operator when you are finished shooting a point so he does not have to hold the range pole steady and centered for longer than necessary.

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