Endress+Hauser PROline promass 80 Documentation Technique page 21

XA041D/06/a3/10.03
50098477
FM+SGML 6.0
PROline promass 80
II2GD and II1/2GD
Ex documentation
for the BA 057D and BA 058D operating instructions
according to Directive 94/9/EC (ATEX)
Instrument groups
applies to instruments used in underground mining operations, as well as
I their above ground operations, which can be endangered by mine gas
and/or flammable dusts.
applies to instruments used in the remaining areas which can be
II
endangered by a potentially explosive atmosphere.
Instrument category
Instruments of this category are for use in areas where ignitable
1G 1D
atmospheres caused by a mixture of air and gases, vapours or mists
or by dust/air mixtures, can exist all of the time or for long periods of
(0) (20)
time or else frequently.
Instruments of this category are for use in areas where ignitable
2G 2D
atmospheres caused by a mixture of air and gases, vapours or mists
(1) (21)
or by dust/air mixtures, can exist some of the time.
Instruments of this category are for use in areas where ignitable
3G 3D atmospheres caused by a mixture of air and gases, vapours or mists
or by dust/air mixtures, are not likely to exist. However, if they do
(2) (22)
occur then in all probability, only seldom or for short periods of time.
(The figures in brackets refer to IEC)
Built according to European norm = E
Explosion protected electrical equipment = Ex
Ex protection labelling in square brackets refers to "Associated electrical equipment"
Type of protection
o
Oil encapsulated
p Pressurized apparatus
q Powder filling
d Flameproof enclosure
e Increased safety
Explosion groups
Gases and vapours
(examples)
- Ammonia
- Acetone, aircraft fuel, benzene, crude oil,
diesel oil, ethane, ethanoic acid, ether, gaso-
lines, heating oil, hexane, methane, propane
- Ethylene, isoprene, town gas
- Acetylene, carbon disulphide, hydrogen
Temperature class
Maximum surface temperature
450 °C
300 °C
200 °C
135 °C
100 °C
85 °C
as an example: 0
Definition
i Intrinsic safety (ia, ib)
n Non-incendive equipment
m Encapsulation
s Special protection
Minimum
EN
ignition
IEC
energy [mJ]
--
IIA
0,18 IIA
0,06
IIB
0,02
IIC
EN / IEC
842 °F T1
572 °F T2
392 °F T3
275 °F T4
212 °F T5
185 °F T6
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II 2G E Ex ia IIC T6