__________________________________________________________________________________________________________________________________
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 2425-P Issue B 17-04-02 Sheet 1 of 4
INSTRUCTION MANUAL (ATEX)
BExA120D and BExA110D
Flameproof Appello Speech Sounders
1) Introduction
The BExA120D and BExA110D are second generation
flameproof Appello Speech Sounders which are certified to the
European Standards EN 50014: 1992 and EN 50018: 1994
and meet the requirements of the ATEX directive 94/9/EC. The
units, which have a facility to record a message of up to 16
seconds in duration, can be used in hazardous areas where
potentially flammable atmospheres may be present. The
speech message can be preceded by one of nine different
alarm tones (
see tone table on Page 4
). The BExA120D unit
produces output levels in the 112dB(A) range and the
BExA110D unit produces output levels in the 110dB(A) range.
Both sounders 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.
BExA120D or BExA110D
Input Voltage: DC Units 24V
AC Units 230V or 115V
Code:
EEx d 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 / 1A22000001
3)
Type Approval Standards
The Appello's 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’
4)
Installation Requirements
The units 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 BExA120D and BExA110D Appello’s have been certified
EEx d 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)
Location and Mounting
The location of the Appello Speech Sounders should be made
with due regard to the area over which the recorded messages
must be audible. The Appello's should only be fixed to services
that can carry the weight of the unit.
0344
Epsilon x:
Gas Group and
Category:
CE Marking:
Notified Body No.
II 2G
