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Enter the ‘Offset (dist2)—distance’ page through the offset menu.
Firstly, enter the offset distance (OSD). If the directions of
‘P1-A0’ and ‘P0-P1’ are the same, the distance is positive, otherwise it is negative.
Press ‘ENT’ or the soft key ‘Enter’ to save settings and enter the page of
‘Offset(dist2)-begin’. To measure the point, you must aim at P0 as shown above.
After the measurement, press ‘ENT’ to end the dialog and enter the page of
‘Offset(dist2)—End.’
After the measurement, press ‘ENT’ and the instrument will now display the
coordinate of the measured point.
◆
If you need the coordinate of ‘A0’, you should set the height of Prism to
zero.
◆
If you need the coordinate of ‘A1’, you should set the height of Prism to the
real height.
8.4.
Plane Offset Mode
Sometimes we wish to obtain the coordinate of some points where we
cannot measure distance directly. Fortunately, we can measure the distances of
other points and all these points are in a plane. At this time the plane offset
measurement can be used.
Firstly, you can measure any three points (P1, P2, P3) to define the measured
plane. Then, you can aim at the measuring point P0, and the instrument will
calculate and display the coordinate of intersection of the defined plane and the
collimation axis. i.e. the coordinate of P0.
Mention that the target height under this mode must be zero.
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