Ambient Illuminance And Visibility Of Laser Line - Hitachi C 12LDH Technical Data And Service Manual

7-5. Ambient Illuminance and Visibility of Laser Line

The visibility of the laser line on the workpiece changes depending on the brightness of the working environment.
Instruct the customer to consider the brightness of the working environment when using the laser marker referring
to the following table.
Illuminance (lux)
Outdoor
Ambient
conditions
(reference)
Indoor
Laser line
(The working environment where the illuminance is 200 luxes or less is dark and difficult to operate the Models
C 12LDH and C 12FDH.)
The laser line is invisible under direct sunlight of fine weather. Prepare a shaded area or relocate to a shaded
area to operate the Models C 12LDH and C 12FDH .
Table 3 Ambient illuminance and visibility of laser line
3000 or more 3000 or more 3000 - 2500
Under direct
Shaded area
sunlight of fine
in fine weather
weather
Near the
window under
fine weather
Invisible Visible
800 - 600
Shaded area
Cloudy
in cloudy
weather
weather
Near the
window under
Indoor under
cloudy
fine weather
weather
Visible Visible
--- 10 ---
300 - 200 150 - 80
Just before the
sunset in
cloudy
weather
Near the window
Indoor under
under cloudy
cloudy weather, just
weather before the
sunset
Visible Glaring
30 or less
Ink line is
invisible.
Glaring