User`s manual

the centre of the target on the TD-S.
Adjust the bottom thumbwheel on the TD-S until the beam is precisely
on the TD-M target.
Check the set-up by rotating the TD-units together to 9 o’clock, 12
o’clock and 3 o’clock. The beams should stay centered on the opposite
targets at all three positions.
The set-up is now complete and the OL2R procedure can be followed.
Note. Now it is very important that you do not move the brackets. You will
now start measuring the movement between them!
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