FlexLine plus, Safety Directions
13
1.6.3 Distancer, Measurements without Reflectors (Non-Prism mode)
General The EDM module built into the product produces a visible laser beam which emerges
from the telescope objective.
The laser product described in this section is classified as laser class 3R in accordance
with:
• IEC 60825-1 (2014-05): “Safety of laser products”
Direct intrabeam viewing may be hazardous (low eye hazard level), in particular for
deliberate ocular exposure. The beam may cause dazzle, flash-blindness and after-
images, particularly under low ambient light conditions. The risk of injury for laser
class 3R products is limited because of:
a) unintentional exposure would rarely reflect worst case conditions of (e.g.) beam
alignment with the pupil, worst case accommodation,
b) inherent safety margin in the maximum permissible exposure to laser radiation
(MPE)
c) natural aversion behaviour for exposure to bright light for the case of visible
radiation.
CAUTION
From a safety perspective, class 3R laser products should be treated as potentially
hazardous.
Precautions:
1) Prevent direct eye exposure to the beam.
2) Do not direct the beam at other people.
CAUTION
Potential hazards are not only related to direct beams but also to reflected beams
aimed at reflecting surfaces such as prisms, windows, mirrors, metallic surfaces, etc.
Precautions:
1) Do not aim at areas that are essentially reflective, such as a mirror, or which could
emit unwanted reflections.
2) Do not look through or beside the optical sight at prisms or reflecting objects when
the laser is switched on, in laser pointer or distance measurement mode. Aiming at
prisms is only permitted when looking through the telescope.
Description Value
Value
(R500) (R500/R1000)
Wavelength 658 nm 658 nm
Maximum average radiant power 4.8 mW 4.8 mW
Pulse duration 400 ps 800 ps
Pulse repetition frequency 320 MHz 100 MHz
Beam divergence 0.2 mrad x 0.3 mrad 0.2 mrad x 0.3 mrad
NOHD (Nominal Ocular Hazard
Distance) @ 0.25 s
46 m 44 m
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