Projector
GAS AREA
Zone 0 - 1G
EXPLOSIVE ATMOSPHERE IS PRESENT continuously or for extended periods during normal operation.
Zone 1 - 2G or 1G
EXPLOSIVE ATMOSPHERE IS PRESENT occasionally during normal operation.
Zone 2 - 3G or 2G or 1G
THE EXPLOSIVE ATMOSPHERE IS PRESENT accidentally, in the event of a malfunction or of short duration
DUST AREA
Area 20
EXPLOSIVE ATMOSPHERE IS PRESENT continuously or for extended periods during normal operation.
Area 21
EXPLOSIVE ATMOSPHERE IS PRESENT occasionally during normal operation.
Area 22
THE EXPLOSIVE ATMOSPHERE IS PRESENT accidentally, in the event of a malfunction or of short duration