Completing a station establishment setup where the height of the setup point has not been determined

If the height of the total station has not been established at the end of the station establishment process, the software prompts you to either enter a known height for the setup point or to measure a height from a known benchmark location defined as a 1D or 3D point.

This occurs when:

• setting up at an arbitrary location and the reference backsight control points measured were all 2D control points that do not contain an elevation value.

• setting up on a known point and the known point and reference backsight control points selected were all defined as 2D control points.

The benchmark point is measured in the same way as any other control point. It is used in combination with the target height and instrument height to determine the setup point elevation.