E2S BExL25D Instruction Manual

1) Introduction
The BExL25D and BExL15D are flameproof loudspeakers
which are certified to meet the requirements of the ATEX
directive 94/9/EC and the IECEx scheme. The loudspeakers
can be used in hazardous areas where potentially flammable
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
BExL25D unit produces output levels in the 117dB(A) range
and the BExL15D 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.
2)
Marking
All units have a rating label, which carries the following
important information:-
BExL25D or BExL15D
Unit Type No.
Impedance: 8 ohm or 16 ohm
70V Line or 100V Line
Ex d IIC T4 for Ta –50°C to +55°C
Codes:
Ex d IIB T4 for Ta –50°C to +70°C
KEMA 99ATEX6312
Certificate No's
IECEx KEM 10.0003
Epsilon x:
Equipment Group
and Category:
CE Marking:
Notified Body No.
"Warnings"
DO NOT OPEN WHEN AN EXPLOSIVE
GAS 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.
3)
Type Approval Standards
The loudspeakers have EC Type Examination and IECEx
certificates issued by KEMA and have been approved to the
following standards:-
__________________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2423-P
INSTRUCTION MANUAL (ATEX / IECEx)
BExL25D and BExL15D
II 2G
0518
i.e. 10 / 1L23000001
Issue G 12-02-10
EN60079-0:2006 IEC60079-0:2004 (Ed4)
EN60079-1:2007 IEC60079-1:2007 (Ed6)
4)
Installation Requirements
The loudspeakers must be installed in accordance with the
latest issues of the relevant parts of the EN60079 standards or
the equivalent IEC standards – 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
IEC60079-14:2007 (Ed4)
EN60079-10:2003
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 and Temperature
Classification
The BExL25D and BExL15D loudspeakers have been certified
Ex d IIC T4 for Ta –50°C to +55ºC) and Ex d IIB T4 for Ta –
50°C to +70ºC). This means that the units can be installed in
locations with the following conditions:-
Area Classification:
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
Group IIB
Group IIC (Up to +55ºC only)
Equipment Category:
Temperature Classification:
Ambient Temperature Range:
-50°C to +55°C Gas Groups IIA, IIB and IIC
-50°C to +70°C Gas Groups IIA and IIB
sales@e-2-s.com
Sheet 1 of 4
Flameproof Loudspeakers
Electrical Installations in Hazardous
Areas (other than mines)
Classification of Hazardous Areas
Propane
Ethylene
Hydrogen and Acetylene
2G
o
T1 400 C
o
T2 300 C
o
T3 200 C
o
T4 135 C
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General Requirements
Flameproof Enclosure 'd'
(1)