Epson 100" EpiqVision Ultra LS500 4000-Lumen Pixel-Shift 4K UHD 3LCD Laser Projector TV System with 100" Screen (White Projector) - Manual (Page 163)

163
Symbol Approved Standards Description
IEC60417
No.5031
Direct current
To indicate on the rating plate that the
equipment is suitable for direct current only;
to identify relevant terminals.
IEC60417
No.5172
Class II equipment
To identify equipment meeting the safety
requirements specified for Class II equipment
according to IEC 61140.
ISO 3864 General prohibition
To identify actions or operations that are
prohibited.
ISO 3864 Contact prohibition
To indicate injury that could occur due to
touching a specific part of the equipment.
— Never look into the projector lens while the
projector is on.
— To indicate that the marked item don’t place
anything on projector.
ISO3864
IEC60825-1
Caution, laser radiation
To indicate the equipment has a laser
radiation part.
ISO 3864 Disassembly prohibition
To indicate a risk of injury, such as electric
shock, if the equipment is disassembled.