GeoMax Zeta125 Manuel De L'utilisateur page 50

Step Description
5. Measure the height difference between the target and the reference
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 2. to 6. to make sure that the meas-
uring points are correct.
8. If the failure is reproducible, calibrate the laser. Run through the steps
in the next table.
Calibration
Step Description

The calibration has to be done by a qualified authority.

Place the pipe laser on a horizontally aligned base.
1.
Press to select MAIN AXIS.
WAIT is displayed.
2. Wait until SET is displayed.
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