__________________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)208 743 8880
www.e-2-s.com Fax: +44 (0)208 740 4200
Document No. IS 2453-P Issue E 12-03-10 Sheet 1 of 4
INSTRUCTION MANUAL (ATEX / IECEx)
BExDL25D and BExDL15D
Flameproof Loudspeakers
For use in Flammable Gas and Dust Atmospheres
1) Introduction
The BExDL25D and BExDL15D are flameproof loudspeakers
which are certified to the meet the requirements of the ATEX
directive 94/9/EC and IECEx scheme. The loudspeakers can
be used in hazardous areas where potentially flammable gas
and dust atmospheres may be present. There are four
versions of each loudspeaker, 8 ohm or 16 ohm and 70V or
100V Line transformer. On 70V and 100V line transformer
units there are four output tappings for each size of
loudspeaker. The BExDL25D unit produces output levels in the
117dB(A) range and the BExDL15D unit produces output
levels in the 112dB(A) range. Both loudspeakers can be used
in Zone 1 and Zone 2 areas with gases in groups IIA, IIB and
IIC and temperature Classifications of T1, T2, T3 and T4. For
ambient temperatures over +55ºC the gas groups are limited to
IIA and IIB. They can also be used in Zone 21 and Zone 22
areas for combustible dusts and have an IP rating of IP 67 and
a surface temperature rating of T100ºC up to +55ºC and
T115ºC over +55ºC.
2)
Marking
All units have a rating label, which carries the following
important information:-
Unit Type No.
BExDL25D or BExDL15D
Impedance: 8 ohm or 16 ohm
70V Line or 100V Line
Codes:
Ex d IIC T4 for T
a
–50°C to +55
°
C
Ex d IIB T4 for T
a
–50°C to +70
°
C
Ex tD A21 IP67 T115°C based on max Ta of +70°C
Certificate No’s
KEMA 99ATEX6312
IECEx KEM 10.0003
“Warnings”
DO NOT OPEN WHEN AN EXPLOSIVE
GAS OR DUST ATMOSPHERE IS PRESENT
COVER BOLTS CLASS A4-80
USE HEAT RESISTING CABLES AND CABLE GLANDS
(Rated 110ºC) AT AMB. TEMPERATURES OVER 40ºC
Year of Construction /
Serial No.
i.e. 10 / 1DL23000001
3)
Type Approval Standards
The loudspeakers have EC Type Examination and IECEx
certificates issued by KEMA and have been approved to the
following standards:-
EN60079-0:2006 IEC60079-0:2004 (Ed4)
General Requirements
EN60079-1:2007 IEC60079-1:2007
(Ed6)
Flameproof Enclosure ‘d’
EN61241-0:2006 IEC61241-0:2004 (Ed1) Dust General
Requirements
EN61241-1:2004 IEC60079-1:2004 (Ed1) Dust Enclosures tD
4)
Installation Requirements
The loudspeakers must be installed in accordance with the
latest issues of the relevant parts of the BS EN 60079
specifications or the equivalent IEC specifications – Selection,
Installation and maintenance of electrical apparatus for use in
potentially explosive atmospheres (other than mining
applications or explosive processing and manufacture):-
EN60079-14:2008
Electrical Installations in Hazardous
IEC60079-14:2007 (Ed4)
Areas (other than mines)
EN60079-10:2003
Classification of Hazardous Areas
IEC60079-10:2008 (Ed1)
The installation of the units must also be in accordance with
any local codes that may apply and should only be carried out
by a competent electrical engineer who has had the necessary
training.
5)
Zones, Gas Group, Category, IP Rating and
Temperature Classification
The BExDL25D and BExDL15D loudspeakers have been have
been certified Ex d IIC T4 for Ta –50°C to +55ºC and Ex d IIB
T4 for Ta –50°C to +70ºC for gas and Ex tD A21 IP67 T115ºC
based on max. Ta of +70ºC for dust. This means that the units
can be installed in locations with the following conditions:-
Area Classification Gas:
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, it will only exist for a short time.
Gas Groupings:
Group IIA
Propane
Group IIB
Ethylene
Group IIC (Up to +55ºC only) Hydrogen and Acetylene
0518
II 2G/D
CE Marking:
Notified Body No.
