Topcon GPT-2005 Manuel D’Utilisation

4-11

   4 DISTANCE MEASUREMENT

Measuring will be taken for the place where direct measuring can not be done, for example distance or 
coordinate 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 offset 
measurement to determine the measured plane. Collimate the measuring target point (P0) then the 
instrument calculates and displays coordinate and distance value of cross point between collimation 
axis and of the plane.

●

When setting the coordinate value for the occupied station, refer to Section 5.1 “Setting Coordinate 
Values of Occupied Point”.

Press the [F4](P1

↓

) key from distance measuring 

mode to get the function on page 2.

[F4]

Press the [F1](OFSET)  key.

[F1]

Press the [F3](PLANE OFFSET)  key.

[F3]

Press the [F3](NP/P) key to change to the non-
prism mode.

[F3]

Collimate  first point P1, and press the [F1](MEAS) 
key.
N-time measuring will start.
After measuring, the display will show the second 
point measurement.

Collimate 

P1

[F1]

 

2

3

Target heights of P1 to P3 is set to zero automatically.

Edge

↓

↓

↓