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3. SAFETY GUIDE
Interior EDM（Visible Laser）
Warning:
The total station is equipped with an EDM of a laser grade of 3R/Ⅲa. It is verified by the following labels:
On the vertical tangent screw sticks an indication label “CLASS III LASER PRODUCT”. A similar label
is sticked on the opposite side.
This product is classified as Class 3R laser product, which accords to the following standards.
IEC 60825-1：2001 “SAFETY OF THE LASER PRODUCT”.
Class 3R/Ⅲ a laser product: It is harmful to observe laser beam continuously. User should avoid sighting
the laser at the eyes. It can reach 5 times the emitting limit of Class2/ II with a wavelength of
400nm-700nm.
Warning：
Continuously looking straight at the laser beam is harmful.
Prevention:
Do not stare at the laser beam, or point the laser beam to others’ eyes. Reflected laser beam is a valid
measurement to the instrument.
Warning:
When the laser beam is shooting at prism, mirror, metal surface or window, the reflector laser beam is
also harmful to eyes.
Prevention:
Do not stare at the locations with laser reflection. When the reflectorless function is enabled for EDM,
do not stare beside the laser beam or prism. Collimating the prism via the telescope unit is requested only.
Warning:
Incorrect application of Class 3R laser equipment is very dangerous.
Prevention:
To avoid being hurt, you must pay particular attention to the precaution measures and keep it under
control within the distance of possible danger according to standard IEC60825-1:2001.
The following explain the key sections of the Standard:
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