GPT-3000 SERIES - FLT Geosystems

4 DISTANCE MEASUREMENT4.7.3 Plane Offset MeasurementMeasuring will be taken for the place where direct measuring can not be done, for example distance orcoordinate measuring for a edge of a plane.Three random prism points (P1, P2, P3) on a plane will be measured at first in the plane offsetmeasurement to determine the measured plane. Collimate the measuring target point (P0) then theinstrument calculates and displays coordinate and distance value of cross point between collimationaxis and of the plane.EdgePPP3P2Target heights of P1 to P3 is set to zero automatically.● When setting the coordinate value for the occupied station, refer to Section 5.1 “Setting CoordinateValues of Occupied Point”.Example: Non-prism measurementOperating procedure Operation Display1 Press the [F4](P1↓) key from distance measuring [F4] HR: 120°30'40"mode to get the function on page 2.HD: 123.456 mVD: 5.678 mMEAS MODE NP/P P1↓OFSET S.O S/A P2↓2 Press the [F1](OFSET) key. [F1]3 Press the [F3](PLANE OFFSET) key. [F3]OFFSET 1/2F1:ANG.OFFSETF2:DIST.OFFSETF3:PLANE OFFSET P↓PLANEN001#:SD:mMEAS --- NP/P ---4 Press the [F3](NP/P) key to change to the nonprismmode.[F3]PLANENN001#:PSD:mMEAS --- NP/P ---5 Collimate first point P1, and press the [F1](MEAS)key.N-time measuring will start.After measuring, the display will show the secondpoint measurement.CollimateP1[F1]PLANEN001#:SD* [n] Measuring...NP4-11