__________________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)20 8743 8880
www.e2s.com Fax: +44 (0)20 8740 4200
Document No. IS 2424-P Issue B 17-04-02 Sheet 1 of 4
INSTRUCTION MANUAL (ATEX)
BExL25E and BExL15E
Flameproof / Increased Safety Loudspeakers
1) Introduction
The BExL25E and BExL15E are second generation flameproof
/ increased safety loudspeakers which are certified to the
European Standards EN 50014: 1992, EN 50018: 1994 and
EN50019: 1994 and meet the requirements of the ATEX
directive 94/9/EC. The loudspeakers can be used in hazardous
areas where potentially flammable atmospheres may be
present. There are three versions of each loudspeaker, 8 ohm,
16 ohm or 100V Line transformer. On 100V line transformer
units there are four output tappings for each size of
loudspeaker. The BExL25E unit produces output levels in the
117dB(A) range and the BExL15E 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.
2)
Marking
All units have a rating label, which carries the following
important information:-
Unit Type No.
BExL25E or BExL15E
Impedance: 8 ohm or 16 ohm
100V Line
Code:
EEx de IIC T4 (T
amb.
–50 to +55
°
C)
Certificate No.
KEMA 99ATEX6312
W arnings:
DO NOT OPEN WHEN AN EXPLOSIVE
GAS ATMOSPHERE IS PRESENT
COVER BOLTS CLASS A4-80
USE HEAT RESISTING CABLES AND CABLE GLANDS
(Rated 95ºC) AT AMB. TEMPERATURES OVER 40ºC
Year of Construction /
Serial No.
i.e. 02 / 1L43000001
3)
Type Approval Standards
The loudspeakers have an EC Type examination certificate
issued by KEMA and have been approved to the following
standards:-
EN 50014 : 1992 + prA1 General Requirements
EN 50018 : 1994 + prA1 Flameproof Enclosure ‘d’
EN 50019 : 1994 + prA1 Increased Safety ‘e’
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):-
BS EN 60079-14 : 1997
Electrical Installations in Hazardous
Areas (other than mines)
BS EN 60079-10 : 1996
Classification of Hazardous Areas
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 the necessary
training.
5)
Zones, Gas Group, Category and Temperature
Classification
The BExL25E and BExL15E loudspeakers have been certified
EEx de IIC T4 (Tamb. –50 to +55ºC). 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
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene
Equipment Category:
2G
Temperature Classification:
T1
400
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
Ambient Temperature Range:
-50
°
C to +55
°
C
6)
Loudspeaker Location and Mounting
The location of the loudspeakers should be made with due
regard to the area over which the unit must be audible. The
0344
II 2G
Epsilon x:
Gas Group and
Category:
CE Marking:
Notified Body No.
