Endress+Hauser promag 30 Ex-Dokumentation Zu Den Betriebsanleitungen Seite 13

XA 007D/06/a3/09.99
No. 50094461
CV 5.0
promag 30
Ex documentation
for the operating manuals BA 008D and BA 039D
according to Directive 94/9/EC (ATEX) and
Certificates of Conformity according to Directive 76/117 EWG
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
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
or by dust/air mixtures, can exist some of the time.
(1) (21)
Instruments of this category are for use in areas where ignitable
atmospheres caused by a mixture of air and gases, vapours or mists
3G 3D
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 refer to "Associated electrical equipment"
Type of protection
o Oil encapsulated
p
Purged
q Sand encapsulated
d
Explosion proof
e Increased safety
Explosion groups
Gases and vapours
(examples)
- Ammonia
- Acetone, aircraft fuel, benzene, crude oil,
diesel oil, ethane, ethanoic acid, ether, gasolines,
heating oil, hexane, methane, propane
- Ethylene, isoprene, town gas
- Acetylene, carbon disulphide, hydrogen
Ignition temperature
Maximum surface temperature
450 °C
300 °C
200 °C
135 °C
100 °C
85 °C
Endress
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as an example:
atmosphere.
Definition
i Intrinsically safety (ia, ib)
Non-flammable equipment
n
m Cast encapsulated
s Special protection
Minimum
IEC
ignition EN
energy [mJ]
--
IIA
0.18 IIA
0.06
IIB
0.02
IIC
IEC / EN
842 °F T1
572 °F T2
392 °F T3
275 °F T4
212 °F T5
185 °F T6
+
Hauser
en
II 2G E Ex ia IIC T6