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APPENDIX 3
IECEx Certification
A3.0 The IECEx Certification Scheme
IECEx is a global certification scheme for
explosion protected products which aims to
harmonise international certification standards.
For additional information about the IECEx
certification scheme and to view the BEKA
associate certificates, please visit www.iecex.com
A3.1 IECEx Certificate of Conformity for use in
an explosive gas atmospheres
The BA444DF-F fieldbus indicator has been issued
with an IECEx Certificate of Conformity number
IECEx ITS 06.0012 which specifies the following
certification codes and marking:
Ex ia IIC T4 Ga
FISCO Field Device Ex ia IIC T4
Ta = -40ºC to 70
º
C
When connected to a certified IECEx system the
BA444DF-F may be installed in:
Zone 0
explosive gas air mixture
continuously present.
Zone 1
explosive gas air mixture
likely to occur in normal
operation.
Zone 2
explosive gas air mixture not
likely to occur, and if it does will
only exist for a short time.
Be used with gases in groups:
Group A propane
Group B ethylene
Group C hydrogen
Having a temperature classification of:
T1
450ºC
T2
300ºC
T3
200ºC
T4
135ºC
At an ambient temperature between –40 and
+70ºC.
A3.1.1 Installation in an explosive gas
atmosphere
For installations in gas atmospheres the BA444DF-
F IECEx and ATEX certifications have identical
intrinsic
safety
parameters
and
installation
requirements.
The
ATEX
system
design
requirements described in section 4 of this manual
may therefore be used for IECEx installations in
gas atmospheres, but the local code of practice
should also be consulted.
A3.2 IECEx Certificate of Conformity
Use in presence of combustible dusts
In addition to IECEx certification permitting
installation in explosive gas atmospheres, the
BA444DF-F is available with optional IECEx
certification permitting use in the presence of
combustible dusts.
The IECEx Certificate of Conformity specifies the
following certification codes and marking:
Ex ia IIIC T100ºC Da IP66
Ta = -20
o
C to 60
º
C
If IECEx dust certification is required it must be
requested when the BA444DF-F fieldbus indicator
is purchased.
WARNING
Before installing a BA444DF-F fieldbus
indicator
in
the
presence
of
a
combustible
dust,
ensure
that
the
certification information label, which is
located on the top of the instrument,
specifies dust certification - see below.
When connected to a certified IECEx system the
BA444DF-F may be installed in:
Zone 20 explosive atmosphere in the
form of a cloud of
combustible dust in air is
continuously present, or for
long periods or frequently.
Zone 21 explosive atmosphere in the
form of a cloud of
combustible dust in air is
likely to occur occasionally
in normal operation.
Zone 22 explosive atmosphere in the
form of a cloud of
combustible dust in air is not
likely to occur in normal
operation, but if it does
occur, will only persist for a
short period.
