E2S BExTS110D Instruction Manual

1) Introduction
The BExTS110D is a second generation flameproof Sontel
telephone sounder which is certified to the European
Standards EN 50014: 1992 and EN 50018: 1994 and meets
the requirements of the ATEX directive 94/9/EC. The Sontel
produces a loud audible signal when triggered by a telephone
ringing signal and can be used in hazardous areas where
potentially flammable atmospheres may be present. Thirty-two
different sounds can be selected by internal switches (see tone
table on Page 4). The BExTS110D unit produces output levels
in the 110dB(A) range. The unit 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:-
BExTS110D
Unit Type No.
Input Voltage: 230V or 110V or 115V
EEx d IIC T4 (T
Code:
KEMA 99ATEX6312
Certificate No.
Epsilon x:
Gas Group and
Category:
CE Marking
Notified Body No.
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.
3)
Type Approval Standards
The Sontels have an EC Type examination certificate issued
by KEMA and have been approved to the following standards:-
EN 50014 : 1992 + prA1
EN 50018 : 1994 + prA1
4)
Installation Requirements
__________________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2427-P
INSTRUCTION MANUAL (ATEX)
°
. –50 to +55
amb
II 2G
0344
i.e. 02 / 1TS23000001
General Requirements
Flameproof Enclosure 'd'
Issue B 17-04-02
BExTS110D
The Sontels 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
BS EN 60079-10 : 1996
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 BExTS110D Sontels 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:
C)
Zone 1
Zone 2
Gas Groupings:
Equipment Category:
Temperature Classification:
Ambient Temperature Range:
6)
Sontel Location and Mounting
The location of the Sontels should be made with due regard to
the area over which the warning signal must be audible. And
they should only be fixed to services that can carry the weight
of the unit.
Sheet 1 of 4
Flameproof Sontel
Electrical Installations in Hazardous
Areas (other than mines)
Classification of Hazardous Areas
Explosive gas air mixture likely to occur in
normal operation.
Explosive gas air mixture not likely to occur,
and if it does, it will only exist for a short time.
Group IIA Propane
Group IIB Ethylene
Group IIC Hydrogen and Acetylene
2G
o
T1 400 C
o
T2 300 C
o
T3 200 C
o
T4 135 C
-50°C to +55°C
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