PLS PLS5 User Manual

Checking Cal ibr ation
11
METHOD 3 (both PLS
5
and PLS
3
) Exact Check of Plumb
Accuracy. This requires significant vertical height (mini-
mum 10’-0”) and the ability to mark at that height. Place
the unit with the #2 down beam exactly centered on both
axes over a cross mark. See Fig. 10. At the surface
above, mark both axes of #3 up beam. Rotate the laser
180˚ and place the #2 down beam exactly centered on the
same mark. The #3 up beam should be exactly over the
first mark.
If there is a difference between mark #1 and mark #2,
the error of the plumb beam is one half that difference.
MAR K
DIST ANCE
FIG. 10

PLS PLS5 Specifications

General

Brand	PLS
Model	PLS5
Category	Laser Level
Language	English