RGK LP-62, Manual

Page: 10 / 12

10
Vertical line accuracy check
Set up the device on a tripod a few meters away from the
wall.
Mark point A on the wall at a height of 3 m from the floor. Us -
ing a plumb line from point A on the floor, mark point B.
Turn on the instrument and align the vertical laser line with
point B. At a height of 3 m from the floor, mark point C on the
laser line.
Measure the distance e from point A to point C. If e> 1 mm,
contact the service center.