User's Manual

67
Warning
When the laser beam emits on prism, mirror,
metal surface, window, it might be dangerous to
look directly at the reflecting light.
Prevention
Do not stare at the direction which the laser
beam is reflected. When the laser is turned on
(under distance measure mode), do not look at
it near the optical path or the prism. It is only
allowed to observe the prism through the
telescope of the total station.
Warning
It is dangerous to make improper use of the Class
IIIa laser equipment.
Prevention
To avoid incurring harm, all the users should take
safety precautions, and must make sure that
everything is under control within the distance
that might bring dangers (according to
IEC60825-1:2001)
There are explanations of some principle points
of related standard as follows:
Class 3R laser product is used in outdoors and
construction site (measuring, defining alignment,
leveling, etc.). The laser equipment can only be
installed, adjusted and operated by those
persons who have taken related training course
and got the authentication.
a. Set related laser warning marks on site.
b. Prevent anyone from looking straight at the
laser beam directly or through optic instrument.
c. To avoid the harm brought by laser, users
should block the laser beam at the end of the
working route. When the laser beam passes
through the restricted area (harmful distance*),
and there are persons taking activities, users