dosatron D3 Series - Page 40

©
DOSATRON INTERNATIONAL S.A.S / 39
©
DOSATRON INTERNATIONAL S.A.S / 40
EN
Equipement
group
Equipment
category
Flammable
substances
Protection
level
Protection,
Faults
I
(Mining)
M1 Methane
Dusts
Very high 2 means of
protection or
2 independent
faults
M2 Methane
Dusts
High 1 mean of
protection
Normal operation
II
(Surface
Industry)
1 Gases,
vapours,
mists, dusts
Very high 2 means of
protection or
2 independent
faults
2 Gases,
vapours,
mists, dusts
High 1 mean of
protection
Ordinary and
frequent failure
3 Gases,
vapours,
mists, dusts
Normal Required level
of protection
Depending upon the nature of the
explosive atmosphere equipment
showing a suitable protection level
shall be used. The following diagram
sums up the appropriate equipment
groups and categories based on the
ATEX type:
User Directive
1999/92/CE
Manufacturer Directive
2014/34/UE
Gas
Atmosphere
Dust
Atmosphere
Zones Marking