Topcon Marine Instruments GPT-2000 Manuel D’Utilisation

7-12

   7 DATA COLLECTION

The measurement of a place apart from a prism is possible by inputting offset horizontal distance of 
front and back / right and left. 

When measuring coordinates of ground point A

1

:

Set the instrument height / prism height.

When measuring  coordinates  of point A

0

:

Set the instrument height only. 
(Set the prism height to 0 ).

Press the [F3](MEAS) key and press the [F4]key to 
get to the next soft key page.

[F3]
[F4]

Press the [F1](OFSET) key.

[F1]

Press the [F2](DIST.OFFSET) key.

[F2]

Press the [F1](INPUT) key and enter Right and 
Left direction offset value.*1)

[F1]

Enter HD

[F4]

A

1

A

0

oHD sign

Forward HD

RorL HD

Prism height

Prism P

Occ.Point

Instrument height

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