_______________________________________________________________________________________________________________________________
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. D210-00-011-IS
Issue 5 20-04-2020 Sheet 1 of 8
INSTRUCTION MANUAL (ATEX / IECEx)
BExS120D and BExS120D-R Flameproof Sounders
For use in Flammable Gas and Dust Atmospheres
1) Warnings
DO NOT OPEN WHEN AN EXPLOSIVE
ATMOSPHERE IS PRESENT
DO NOT OPEN WHEN ENERGIZED
POTENTIAL ELECTROSTATIC CHARGING
HAZARD
– CLEAN ONLY WITH A DAMP
CLOTH
COVER BOLTS CLASS A4-80
USE HEAT RESISTING CABLES AND CABLE
GLANDS (RATED 110°C) AT AMB.
TEMPERATURES OVER 40°C
2) Rating & Marking Information
All units have a rating label, which carries the following
important information: -
Model No.:
BExS120D or BExS120D-R
Input Voltage:
DC Units 12V or 24V or 48V
AC Units 115V or 230V
BExS120D or BExS120D-R Codes:
Ex db IIC T4 Gb Ta. -50°C to +55°C
Ex db IIB T4 Gb Ta. -50°C to +70°C
Ex tb IIIC T100°C Db Ta. -50°C to +55°C
Ex tb IIIC T115°C Db Ta. -50°C to +70°C
Certificate No.
KEMA 99ATEX6312X
IECEx KEM 10.0003X
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 atmosphere not likely to
occur in normal operation but may be
present for short periods.
Gas Groupings:
Group IIA
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene (up to 55°C
ambient)
Temperature Classification:
T1
450ºC
T2
300ºC
T3
200ºC
T4
135ºC
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 in normal operation, and if it does, it
will only exist for a short time.
Dust Groupings:
Group IIIA
Combustible Dusts
Group IIIB
Non-Conductive Dust
Group IIIC
Conductive Dust
Maximum Surface Temperature for Dust Applications:
100ºC at +55 ºC ambient
115 ºC at +70 ºC ambient
IP Rating:
IP66/67 to EN/IEC60529 and IP6X to
EN/IEC60079-0, EN/IEC60079-31
Equipment Category:
2G / 2D
Equipment Protection Level:
Gb / Db
Ambient Temperature Range:
-50°C to +55°C Gas Groups IIA, IIB and IIC
-50°C to +70°C Gas Groups IIA and IIB
-50°C to +70°C Dust Groups IIIA, IIIB and IIIC
2813
II 2G
II 2D
Epsilon x
Equipment Group and
Category:
CE Marking
Notified Body No.
BExS120D
BExS120D-R