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Set the equipment at 1/3 between two staffs. The distance between two staffs should be
40m-60m. It also need to meet the following conditions:
A. Station 1: 0.2 x D < DIST_A1 < 0.4 X D
B. Station 2: 0.2 x D < DIST_B2 < 0.4 X D
2) Näbauer Method
Set the equipment outside the staff, a is about 15m-20m. The conditions for distance
should same as Förstner method.
It will display the i angle, the corrective stadia as the checking result on the screen.
5.2 Dual-axis Adjust
After leveling the equipment precisely, the tilt value should near to zero. Otherwise it will
cause the error.
