HEDÜ R1 Mode D'emploi page 14

Power On
Pressing this key the unit starts with self-levelling. Both in
horizontal than also in vertical situation.
Example of
horizontal use.
The motorized self-levelling has a working range of 5°.
After finishing self-levelling the laser starts to rotate with 600
r.p.m.
14
Example of vertical use (R2 only)