Calibrating The Instrument - Sokkia SET 550 Setup And Operation

Calibrating the Instrument

Calibrating the Instrument
Calibration must be completed before coordinates can
Calibration must be completed before coordinates can
be obtained
be obtained
3 possible calibrations:
3 possible calibrations:
Backsight by angle: must know instrument coordinates and
Backsight by angle: must know instrument coordinates and
have a landmark/target at a known azimuth
have a landmark/target at a known azimuth
Backsight by coordinate: must know instrument
Backsight by coordinate: must know instrument
coordinates and have mirror target set on a position of
coordinates and have mirror target set on a position of
known coordinates
known coordinates
Resection (triangulation): must have 3 or more mirror
Resection (triangulation): must have 3 or more mirror
targets established at known 3D coordinates
targets established at known 3D coordinates