3.
Measure the height difference between the reference and the tar-
get point. Write down the value.
4.
Move the laser beam to the target point.
5.
Measure the height difference between the target and the refer-
ence point. Write down the value.
6.
Subtract the values for the two height differences.
Over a distance 60 m, the result must be less than 3 mm.
7.
If the value is larger, repeat step
to make sure that the
measuring points are correct.
8.
If the failure is reproducible, calibrate the laser. Run through the
steps in the next table.
Calibration
☞
The calibration has to be done by a qualified authority.
☞
Place the pipe laser on a horizontally aligned base.
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