Press this Key twice to hold the current H. Angle.
• [INVERS] key
If you want to calculate direction angle, Press
[F5][INVERS] to jump to INVERSE function. Input
SP as Station Point, EP as Back Sight Point
Result angle is set here automatically by pressing
[ENT] at RESULT OF INVERSE screen.
Press [ENT] after aiming back sight point. Aim at the reference point, then press [ENT].
11.3 FREE STATIONING
11.3.1 Stationing by more than 3 known points
4 known points stationing (For example)
Press 3. FREE STATION of the PowerTopoExpress
2 screen, and press [ENT] to view the IH input screen. Input the IH value.
Aim at Point 1.
Press [ENT] to view the KNOWN POINT COORD.SETUP screen.
Press [ENT] to open the PN, X, Y, Z and PH input window and input each.
Then, press [F5] [ACCEPT] to view the MEASURE
screen.