The LAX-50 crossed line laser is designed for use on construction sites and was per-
fectly adjusted when it left our factory. As with any precision instrument, however,
its calibration must be regularly checked. The unit should be checked before start-
ing any new tasks, particularly when the unit has been exposed to strong vibra-
tions. After an impact, the unit should be checked throughout its whole self-levell-
ling range.
Checking the calibration
You must create a reference to perform this test.
Fasten a plumbline near to the wall.
The laser unit should now be set up in front of this reference mark
(distance Y) and the vertical laser line compared with it.
The discrepancy between the centre of the laser line and the reference mark
should be no greater than 1 mm over a length of 2 m.
Vertical check
D1
D2
D3
360° scale
The vertical laser line indicates the angular displacement of the laser
unit and the laser line on the 360° scale of the base unit.
Tip:
It’s necessary to center the unit by using the
vial!
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