INSTRUCTION MANUAL (ATEX / IECEx)
BExCS110-05D
Flameproof Combined Sounder / Beacon
1) Introduction
The BExCS110-05D is a flameproof combined sounder /
beacon which is certified to meet the requirements of the
ATEX directive 94/9/EC and the IECEx scheme. The sounder
section produces loud audio warning signals and the beacon
section produces a synchronised visual warning signal. The
unit can be used in hazardous areas where potentially
flammable atmospheres may be present. Thirty-two different
first stage audio alarm sounds can be selected by internal
switches, and each one can be externally changed to a
second or third stage alarm sound (
see tone table on Page
5
). The sounder produces output levels in the 110dB(A)
range and the beacon has a flash energy of 5 joules. The unit
can be used in Zone 1 and Zone 2 areas with gases in
groups IIA and IIB and with 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.
BExCS110-05D
Input Voltage: DC Units 12V or 24V or 48V
AC Units 230V or 115V
Code:
Ex d IIB T4 for T
a
–50
°
C to +70
°
C
Certificate No.
KEMA 01ATEX2223X
IECEx KEM 10.0025X
“Warnings”
DO NOT OPEN WHEN AN EXPLOSIVE
GAS ATMOSPHERE IS PRESENT
COVER BOLTS CLASS A4-80
USE HEAT RESISTING CABLES AND
CABLEGLANDS (Rated 110ºC) AT
AMB. TEMPERATURES OVER 40ºC
Year of Construction /
Serial No.
i.e. 10 / 1CS21000001
3)
Type Approval Standards
The units have an EC Type examination certificate issued by
KEMA and have 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’
4)
Installation Requirements
The unit 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 unit 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 BExCS110-05D unit has been certified 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
Equipment Category:
2G
Temperature Classification:
T1
400
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
CE Marking:
Notified Body No.
II 2G
Epsilon x:
Equipment Group
And Category:
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