Titan TTS2 Manual page 51

distance, azimuth angle and coordinate of the cylinder by measuring
the surface points of tangency P2 and P3.
The average value of P2 and P3 is the azimuth angle of the
cylinder.
In the menu of "Offset", select "5. Offset (Column)" to enter the
interface of "Offset (Column) –Prism":
After measuring→
If you want to point 'P0', please input its height as zero before
measuring it. If you want to measure "P0'", input the real height
value, then press [Meas] to start measure. After measuring, press
[Enter] to receive the measured data and enter the interface of "Offset
(Column) –L.edge":
Press [Enter] →
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