2
leveling).
a) Only those persons who are trained with related course
and authenticated are allowed to install, adjust, and
operate this kind of laser instrument.
b) Stand related warning symbols in the scale of use.
c) Prevent any person to look straight at or use optical
instrument to observe the laser beam.
d) To prevent the harm caused by laser, block the laser
beam at the end of the working route. When the laser
beam exceeds the limit area (harmful distance*) and
when there are motivating persons, stopping the laser
beam is a must.
e) The optical path of the laser should be set higher or
lower than the line of sight.
f) When the laser instrument is not in use, take care of it
properly. The person who is not authenticated is not
allowed to use.
g) Prevent the laser beam from irradiating plane mirror,
metal surface, window, etc., especially beware of the
surface of plane mirror and concave mirror.
* Harmful distance means the maximum distance
between the start point and the point which the laser is
weakened to a degree that doesn’t harm people.
The internal EDM instrument equipped with a Class 3R/III
a Laser has a harmful distance of 1000m (3300ft).
Beyond this distance, the laser intensity is weakened to
Class I (Looking straight at the laser beam causes no
harm to the eyes.)
LASER PLUMMET
The laser plummet built into the product produces a
visible red laser beam which emerges from the bottom of
the product. The product is a Class 2/
Ⅱ
Laser Product.
Class 2 Laser Product is in accordance with:
IEC 60825-1:1993 "Safety of Laser Products"
EN 60825-1:1994 + A
Ⅱ
:1996: "Safety of Laser
Products".
Class
Ⅱ
Laser Product is in accordance with:
FD121CFR ch.1$ 1040:1998 (U.S. Health and Human
Services Secretary, Federal rules code)
Class 2 Laser Products:
Do not stare into the beam or direct it unnecessarily at
other persons. Eye protection is normally afforded by
aversion responses including the blink reflex.
