__________________________________________________________________________________________________________________________________
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 2457-P Issue E 12-03-10 Sheet 1 of 4
INSTRUCTION MANUAL (ATEX / IECEx)
BExDTS110D
Flameproof Sontel
For use in Flammable Gas and Dust Atmospheres
1) Introduction
The BExDTS110D is a flameproof Sontel telephone sounder
which is certified to meet the requirements of the ATEX
directive 94/9/EC and IECEx scheme. The Sontel produces a
loud audible signal when triggered by a telephone ringing
signal and can be used in hazardous areas where potentially
flammable gas and dust atmospheres may be present. Thirty-
two different sounds can be selected by internal switches (
see
tone table on Page 4
). The BExDTS110D 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. 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.
BExDTS110D
Input Voltage: DC Units:
12V or 24V or 48V
AC Units:
230V or 110V or 115V
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 / 1DTS23000001
3)
Type Approval Standards
The Sontel has EC Type Examination and IECEx certificates
issued by KEMA and has 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 Sontels must be installed in accordance with the latest
issues of the relevant parts of the EN 60079 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
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 the necessary
training.
5)
Zones, Gas Group, Category, IP Rating and
Temperature Classification
The BExDTS110D Sontels 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
Temperature Classification:
T1
400
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
0518
II 2G/D
Epsilon x:
Equipment Group and
Category:
CE Marking
Notified Body No.
