Instruction manual

14. COORDINATE MEASUREMENT

3. Press [OK] to set the input values. <Coord.

measurement> is displayed.

& Horizontal angle settings

Azimuth (set both horizontal and azimuth angles to the same value)/H.ang (input both horizontal

and azimuth angles)/None (input azimuth angle only)/0 SET (horizontal angle set to 0°)

The coordinate values of the target can be found by measuring the target based on the settings of the

instrument station and backsight station.

The coordinate values of the target are calculated using the following formulae.

N1 Coordinate = N0 + S x sinZ x cosAz

E1 Coordinate = E0 + S x sinZ x sinAz

Z1 Coordinate = Z0 + S x cosZ + ih - th

N0: Station point N coordinate S: Slope distance ih: Instrument height

E0: Station point E coordinate Z: Zenith angle th: Target height

Z0: Station point Z coordinate Az: Direction angle

"Null" coordinates will not be included in calculations. "Null" is not the same as zero.

14.3

3-D Coordinate Measurement