Leica TS13 User Manual page 48

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48
As with all other instrument errors, the collimation error of the automatic aim-
ing must be redetermined periodically. Refer to "5 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 coordinates
may vary.
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.
Operation