User's Manual

5
measurement signal.
Warnings:
It’s dangerous to use Class 3R Laser instrument improperly.
Precautions:
In order to avoid causing damage, the proper precautions
should be taken for you and control well the distance (in
accordance with the standard “IEC60825-1:2001”) that may
occur hazards.
The following is the main part of the explanation of the IEC
Standard Publication:
Class 3R Laser Products are used in outdoors and on
building site (with non-prism measurements).
The personnel who is specially trained, qualified and
authenticated are allowed to stall, adjust and operate these laser
instruments.
b. Set up corresponding laser warning signs in the use of
area range.
c. Prevent anyone from looking directly into laser beams or
watching the laser beams with optical device.
d. In order to prevent laser damage to people , the laser
beams should blocked at the end of the working route. In the
limited area (★Hazardous distances) where the laser beams
through ,the laser beams should be terminated when there are
some activities.
e. the route which laser beans through must be set higher or
lower than the sight of people.
f. When the instrument not in use, please make it
safekeeping and storied. Unauthorized person should not use it.
g. To prevent exposure to laser beam accidentally, such as
mirrors, metal surfaces, windows, be careful as the flat surface
of the mirror and concave mirror.