Rotation Speed; Using The Laser Chalk Line - GeoMax ZEL400HV Gebrauchsanweisung

Move the laser so that the beam is over the reference point on the ground,
keeping the arrow and index aligned.
Align the beam projecting from the top of the head to your second refer-
ence point with key (16) or (17) on the laser or with the ZDR300. (This
beam is 90°, or square, to the other vertical plane beam.)
4. Start the head rotation using keys (14) or (15) to change speed or use the
chalk line.
It is important to check while you're using the laser that it has not been moved
and that your setting is still accurate.

2.6 Rotation Speed

Your laser is equipped with a visible laser diode.
It may be necessary to adjust the rotation speed according to the ambient light
conditions using keys (14) and (15). The laser beam is more visible in slow
motion. It is possible to stop the rotation and point the beam manually to view
the beam over long distances.

2.7 Using the Laser Chalk Line

Ideal for viewing at short distances. To use the laser chalk line feature, hold
the head and lift the handle (4a) on the laser head upwards so that the beam
comes out the laser line aperture (4). This gives a precise and stable laser line
Basic Operation ZEL400HV | 11