General
Info: INTERIOR LASERS are used to layout suspended ceilings
and walls. A visible beam guides the alignment of track although
hand-held detectors can be used in very bright work environments.
The
laser beam can be slowed and stopped and (with some models) set
to scan back-forth between two points. Many models have a plumb
beam as well as a rotating plane of light. The plumb beam can be
used to transfer a point from the floor to ceiling, but also can
be used for 90— layout.
When
the plumb beam runs parallel to the floor, the rotating plane which
is always locked at 90— can be used for perpendicular layout. By
placing the laser over a beginning point and moving the plumb beam
to another point on the layout line, the 90— rotating laser plane
provides a perpendicular line to the original layout line.
Some
INTERIOR LASERS allow the operator to grab the laser head to rotate
manually. Many of the new models, though, have the laser head inside
a glass lighthouse so a remote control or buttons on the instrument
panel are used to adjust the movement of the laser beam (and plumb
beam to align in the horizontal mode). INTERIOR LASERS come with
a wall mount but can also be mounted on a tripod or set directly
on the floor.
Because
the beam can be stopped and presents a possible safety hazard if
focused in the eye, laser
placards and operator
cards are required on the jobsite (see OSHA
regulations).
Laser
Enhancement Glasses can be worn to "enhance" the visibility
of the laser line. Current models use rechargeable or alkaline
batteries and 110AC is no longer needed on the jobsite.
