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2) Marking
All units have a rating label, which carries the following
important information:-
BExS120E or BExS110E
Unit Type No.
Input Voltage: DC Units
AC Units
EEx de IIC T4 (T
Code:
KEMA 99ATEX6312
Certificate No.
Epsilon x:
Gas Group and
Category:
CE Marking:
Notified Body No.
Warnings:
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
4) Installation Requirements
Sounders must be installed in accordance with the following
or equivalent standards.
BS EN 60079-14 : 1997
BS EN 60079-10 : 1996
Installation should only be carried by competent personnel
and any local codes of practice applied.
5) Zones, Gas Group, Category and Temperature
Classification
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:
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. BExS120E and BExS110E English
INSTRUCTION MANUAL (ATEX) (GBR)
Flameproof / Increased Safety Sounders
12V or 24V or 48V
230V or 110V or 115V
°
. –50 to +55
amb
II 2G
0344
Electrical Installations in Hazardous
Areas (other than mines)
Classification of Hazardous Areas
Issue A
BExS120E and BExS110E
Equipment Category:
Temperature Classification:
C)
Ambient Temperature Range:
6) Sounder Location and Mounting
See drawing A
7) Safety Warning (Electrostatic Hazard)
The acoustic horn section is made of ABS Plastic; therefore
to avoid a possible ELECTROSTACTIC CHARGE the unit
must only be cleaned with a damp cloth.
8) Access to the Flameproof Enclosure
See drawing B
Note the four M6 screws are Class A4-80 stainless steel
and only screws of this category can be used on these
sounders. It is therefore important that these screws and
their spring washers are kept in a safe place during
installation.
9) Access to the Increased Safety Terminal
Chamber
See Drawing C
10) Power Supply Selection
The system power supply must have the necessary capacity
to provide the input current to all of the sounders connected
to the system.
The following table shows the input current taken by the
various sounder units:-
Unit Type
BExS120E
BExS120E
BExS120E
BExS120E
BExS120E
BExS120E
(Four Sheets)
15-10-02
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
Input
Input
Voltage
Current
24V DC
800mA
12V DC
850mA
48V DC
420mA
230V AC
90mA
110V AC
200mA
115V AC
180mA
sales@e2s.com
Tel: +44 (0)208 743 8880
www.e2s.com
Fax: +44 (0)208 740 4200
Max.
I/P Volts
30V
15V
58V
264V
121V
126V
)
(5
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