SLT12 User Manual
5
Prevention:
To avoid injury, each user must carry safety prevention measures and operate the instrument within the safety
scope according to standard IEC60825-1: 2001).
The following is the explanation of the main part of the standard:
Class 3R level laser products are used outdoors and in construction (surveying with No-Prism).
A: Only trained and certified persons are allowed to install, adjust and operate the laser equipment.
B: Set up appropriate laser warning signs within the operating field
C: To prevent anyone from looking into the laser beam use an optical instrument to observe.
D: To prevent laser damage to persons, the laser beams should be blocked at the end of the working route, and
should be cut off when people work in the restricted area (harmful distance) where laser beams crossing are
harmful.
E: The route of the laser beam must be set to be higher or lower than the human eye.
F: Properly store and safe keep the laser products when they are not in use, unauthenticated personnel are not
allowed to use them.
G: Do not point laser beams at surfaces such as plane mirrors, metal surfaces, or windows, especially the surface
of plane mirrors and concave mirrors.
Harmful Distance is the maximum distance from the starting point of the laser beams to where people are right
safe. The built-in harmful distance of the Class 3R/Ⅲa laser is 1000m(3300ft) and the laser intensity will reduce
to that of Class 1 products (which does not harm eyes) if people are out of this range.
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