User manual

Operation TPS1200 87
Vertical and horizontal angles and the distance are measured to the centre of the
prism. The lock mode enables the instrument to follow a moving prism.
)
As with all other instrument errors, the collimation error of the automatic target recog-
nition must be redetermined periodically. Refer to "4 Check & Adjust" about checking
and adjusting instruments.
)
When a measurement is triggered while the prism is still moving, distance and angle
measurements may not be made for the same position and wrong coordinates may
be calculated.
)
If the prism location is changed too quickly, the target may be lost. Make sure that
the speed does not exceed the figure given in the technical data.