Light Beam Hazard Distance (Hd) - Barco Athena Installation Manual

Safety
To prevent battery explosion
• Danger of explosion if battery is incorrectly installed.
• Replace only with the same or equivalent type recommended by the manufacturer.
• For disposal of used batteries, always consult federal, state, local and provincial hazardous waste disposal
rules and regulations to ensure proper disposal.
Safety Data Sheets for Hazardous Chemicals
For safe handling information on chemical products, consult the Safety Data Sheet (SDS). SDSs are available
upon request via safetydatasheets@barco.com.

2.4 Light beam Hazard Distance (HD)

HD
Light beam Hazard Distance (HD) is the distance from the source at which the intensity or the
energy per surface unit becomes lower than the applicable safety limit. The light beam can thus be
considered as dangerous if the operator is closer from the source than the HD.
Restriction Zone (RZ) based on the HD
The HD is defined from the projection lens surface towards the position of the lowest projected beam where
the irradiance equals the applicable safety limit. The HD depends on the amount of lumens produced by the
projector and the type of lens installed. See next chapter HD in function of the lens Throw Ratio (TR).
To protect untrained users the installation shall comply with the following installation requirements: light output
levels in excess of the limits shall not be permitted at any point less than 2.0 meters (SH Image 2-1) above any
surface upon which persons are assumed to stand or 1 meter (SW Image 2-1) below or in lateral separation
from any place where such persons are assumed to be. See Image 2-1.
RA TH
PR
SH
(A) SIDE VIEW
Image 2-1
A Side view.
B Top view.
RA Restricted Access location (booth area of
projector).
PR Projector.
Based on national requirements, no person is allowed to enter the projected beam within the zone between
the projection lens and the related hazard distance (HD). This shall be physically impossible by creating
sufficient separation height or by placing barriers. The minimum separation height takes into account the
surface upon which persons are assumed to stand.
On Image 2-1 a typical setup is displayed. It must be verified by the installer if these minimum requirements
are met. If required a restricted zone (RZ) in the theater must be established. This can be done by using
physical barrier, like a red rope as illustrated in Image 2-2.
16 R5906790 /04 Athena
RZ
SH
TH
SW
RA
PR
SW
(B) TOP VIEW
TH Theater.
RZ Restriction Zone in the theater.
SH Separation Height. Must be minimum 2 meter.
SWSeparation Width. Must be minimum 1 meter.
SW
RZ
SW