E2S BExS120D Manual De Instrucciones página 5

2) Marking
All units have a rating label, which carries the following
important information:-
BExDS120D or BExDS110D
Unit Type No.
Input Voltage: DC Units
AC Units
EEx d IIC T4 (T
Code:
IP67
KEMA 99ATEX6312
Certificate No.
Epsilon x:
Equipment Group
and Category:
CE Marking:
Notified Body No.
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 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 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.
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. BExDS120D and BExDS110D (Gas-Dust) English
INSTRUCTION MANUAL (ATEX) (GBR)
BExDS120D and BExDS110D
For use in Flammable Gas and Dust Atmospheres
12V or 24V or 48V
230V or 110V or 115V
°
. –50 to +55 C)
amb
T135ºC Ta < +55ºC
II 2G/D
0344
Electrical Installations in Hazardous
Areas (other than mines)
Classification of Hazardous Areas
Gas Groupings:
Group IIA
Group IIB
Group IIC
Temperature Classification:
Area Classification Dust:
Zone 21 Explosive dust air mixture likely to occur in
normal operation.
Zone 22 Explosive dust air mixture not likely to occur,
and if it does, it will only exist for a short time.
IP Rating:
Equipment Category:
Ambient Temperature Range:
6) Sounder Location and Mounting
See drawing A
7) 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.
8) 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
BExDS120D
BExDS120D
BExDS120D
BExDS120D
BExDS120D
BExDS120D
[email protected]
Issue A (Four Sheets) 25-02-04
Flameproof Sounders
Propane
Ethylene
Hydrogen and Acetylene
o
T1 400 C
o
T2 300 C
o
T3 200 C
o
T4 135 C
IP67 T135ºC Ta < +55ºC
2G/D
-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
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