Total Station Manual
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Security Guide
Pay attention to the following safety matters when you use the laser ranging free of
prism.
Warning：
Total station fit out laser level 3R/Ⅲa which is recognized by the loge, which is
above:
the verticallocking screw saying：“3A laser product ”.This product belongs to Class 3R
levellaser .According to the following standards IEC 60825-1：2001Class 3R/Ⅲa laser
product can reachfive times of emission limits of the Class 2/Ⅱ in the wavelength
between 400nm-700nm.
Warning ：
Continuous stareinto the laser beam is harmful.
Prevention：
Do not stare at laser beam or point to others. The reflected beams is the
effective signal of the instrument. It’s safety to observe by eyepice.
Warning：
When the laser beam is irradiated reflected by prisms, plane mirrors, surface of
metal and windows,it’s dangerous to look straightinto the reflected beams.
Prevention ：
Don’t stare at the reflected beams. When the laser is switched on (distance
mode), do not obstruct optical path or stand near the prism.Target at a prismwith
total station telescope only.
Warning ：
It’s dangerous to use the Class 3R laser deviceinproperly.
Prevention：
Toavoid 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 raserproducts are used outdoors and in construction (surveying with
No-Prism).
A: Only trained and certified personnels are allowed to install, adjust and operate
the laser equipment.
B: set up appropriate laser warning sign within the operating field
C: To prevent anyone from looking into the laser beam use an optical instrument to
observe.
D: in order to prevent laser damage to persons, the laser beams should be blocked at
the end of the working route, and also should be cut off when people work in the
restricted area (harmfuldistance)where laser beams crossing are harmful.
E: the route of the laser beam must set to be higher or lower than the human eye.
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