Barco Balder GP7, User Manual

Page: 49 / 54

601 – 0443 /03 Balder 49
6.3 High Brightness Precautions
Restriction Zone (RZ) based on the HD (Hazard Distance).
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)", page 8 .
To protect untrained end users (as cinema visitors) the installation shall comply with the following installation
requirements: Operators shall control access to the beam within the hazard distance or install the product at
the height that will prevent spectators
’ eyes from being in the hazard distance. Radiation levels in excess of
the limits will not be permitted at any point less than 2.0 meter (SH) above any surface upon which persons
other than operators, performers, or employees are permitted to stand or less than 1.0 meter (SH) lateral
separation from any place where such persons are permitted to be. In non-cinema environments where
unrestrained behavior is reasonably foreseeable, the minimum separation height should be greater than or
equal to 3.0 meter to prevent potential exposure, for example by an individual sitting on another individual
’ s
shoulders, within the HD.
These values are minimum values and are based on the guidance provided in IEC 62471-5:2015 section
6.6.5.
The end user must understand the risk and apply protective measures based upon the hazard distance as
indicated on the label and in the user information. Installation method, barriers, detection system or other
applicable control measure shall prevent hazardous eye access to the radiation within the hazard distance.
For example, projectors that have a HD greater than 1 m and emit light into an uncontrolled area where
persons may be present should be positioned in accordance with
“ the fixed projector installation ” parameters,
resulting in a HD that does not extend into the audience area unless the beam is at least 2.0 meter above the
floor level. In non-cinema environments where unrestrained behavior is reasonably foreseeable, the minimum
separation height should be greater than or equal to 3.0 meter to prevent potential exposure, for example by
an individual sitting on another individual
’ s shoulders, within the HD. For example, a sufficiently large
separation height may be achieved by mounting the image projector on the ceiling or through the use of
physical barriers.
For applications installed in the USA market the above limits for cinema like environments do not apply. The
relevant minimum separation height is 2.5m (8,2 ft) by the FDA CDRH. Non cinema like environments require
2.5 meter (8.2 ft) separation height and 1.0 meter (3.3 ft) separation width for areas where restrained behavior
is to be expected. All other areas require 3.0 (9.9 ft) separation height.
RA
TH
PR
RZ
HD
SW
1
m
SW
SW
SW
HD
EXIT
SH
RA
PR
TH
RZ
SH
(B) TOP VIEW (A) SIDE VIEW
Image 6-1
A Side View
B Top View
RA Restricted Area
PR Projector
TH Theater
RZ Restriction Zone in the theater
SH Separation Height
SW Separation Width
Regarding the SH Distance: For Cinema applications, the distance must be >2m. For Concert
applications, the distance must be >3m.
Risk Group 3 Safety