NEC PV800UL-W, Руководство пользователя, Страница: 19 / 79

Important Information
xviii
• Hazard zone
The below figure describes the radiation zone (hazard zone) of light emitted by the projector that
is classified as Risk Group 3 (RG3) of IEC/EN 62471-5 First edition 2015.
Overhead view
H
a
b
HD
a: Screen / b: Hazard zone
Side view
HD
V
a
b
a: Screen / b: Hazard zone
PV800UL-W/PV800UL-B PV710UL-W/PV710UL-B
Lens
Hazard zone (m)
HD H V
NP15ZL
Wide 1.0 0.25 0.16
Tele 1.5 0.23 0.15
NP43ZL
Wide 0.7 0.26 0.16
Tele 1.4 0.24 0.16
Lens
Hazard zone (m)
HD H V
NP15ZL
Wide 0.9 0.23 0.14
Tele 1.3 0.21 0.13
NP43ZL
Wide 0.7 0.23 0.15
Tele 1.2 0.21 0.13
• About the precautionary zone
By providing a precautionary zone or physical barriers, it is possible to prevent human eyes from
entering the hazard zone.
When the manager of the projector (operator) cannot prevent spectators from entering the hazard
zone such as in public facilities, it is recommended to secure a space of 1 m or more from the haz-
ard zone as “the precautionary zone” for the safety of the spectators. When installing the projector
overhead, it is recommended that the distance between the floor and the hazard zone be at least
3 m in the vertical direction.
In the United States, provide a horizontal distance of 2.5 meters from the hazard zone. When install-
ing the projector overhead, provide a vertical distance of 3 meters from the floor to the hazard zone.