_______________________________________________________________________________________________________________________________
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 2491-P Issue C 18-03-10 Sheet 1 of 4 (1)
INSTRUCTION MANUAL (ATEX / IECEx)
BExH120D Hootronic
Flameproof Sounder
For use in Flammable Gas Atmospheres
1) Introduction
The BExH120D Hootronic flameproof sounder meets the
requirements of the ATEX directive 94/9/EC and the IECEx
scheme. The sounder produces traditional warning signals
and can be used in hazardous areas where potentially
flammable atmospheres may be present. Five different first
stage sounds can be selected by internal pin headers, and
each one can be externally changed to a second or third
stage sound (
see sound table on Page 4
). The Hootronic
sounder 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:-
Unit Type No.
BExH120D
Input Voltage: DC Units 24V
AC Units 230V or 115V
Code:
Ex d IIC T4 for T
a
–50ºC to +55ºC
Ex d IIB T4 for T
a
–50ºC to +70ºC
Certificate No’s
KEMA 99ATEX6312
IECEx KEM 10.0003
“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.
i.e. 10 / 1H12000001
3)
Type Approval Standards
The sounder 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
EN60079-7:2003 IEC60079-7:2001 (Ed3)
Increased Safety ‘e’
4)
Installation Requirements
The Hootronic sounder must be installed in accordance with
the latest issues of the relevant parts of the EN60079
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):-
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 and Temperature
Classification
The BExH120D Hootronic sounder has been certified Ex d
IIC T4 for Ta –50ºC to +55ºC and Ex d IIB T4 for Ta –50ºC 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
Propane
Group IIB
Ethylene
Group IIC (Up to +55ºC only) 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
Gas Groups IIA, IIB and IIC
-50
°
C to +70
°
C Gas Group IIA and IIB
6)
Sounder Location and Mounting
The location of the sounder should be made with due regard
to the area over which the warning signal must be audible.
The sounder should only be fixed to services that can carry
the weight of the unit.
0518
II 2G
Epsilon x:
Equipment Group
and Category:
CE Marking:
Notified Body No.
