European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D157-00-101-IS
Issue 1
02-11-21
Sheet 2 of 7
2) Warnings
•
DO NOT OPEN WHEN ENERGISED.
•
DO NOT OPEN WHEN AN EXPLOSIVE
ATMOSPHERE IS
PRESENT.
•
POTENTIAL ELECTROSTATIC CHARGING HAZARD.
•
ALL ENTRIES M20 X 1.5MM.
•
IF TEMPERATURE EXCEEDS 70°C AT ENTRY OR 80°C
AT BRANCHING POINT USE SUITABLE RATED CABLE
AND CABLE GLANDS.
•
IF OPENING THE UNIT DURING MAINTENANCE
OPERATIONS A CLEAN ENVIRONMENT MUST BE
MAINTAINED AND ANY DUST LAYER REMOVED PRIOR
TO OPENING THE UNIT.
3) Marking & Rating Information
All units have a rating label, which carries the following
important information.
Products may have further approvals, see E2S website for
further details.
ATEX / IECEx Ratings
Standards
EN60079-0:2018 EN IEC60079-0:2018
General Requirements
EN60079-1:2014 A/C:2018 EN 60079-1:2014 ed. 7
Flameproof Enclosure ‘d’
Model No:
Rating
GNExS2DC024
GNExS2DC048
GNExS2AC230
Ex db IIC T4 Gb for Ta
–
60°C to +50°C
Ex db IIC T3 Gb for Ta
–
60°C to +58°C
Ex db IIB T6 Gb for Ta
–
60°C to +50°C
Ex db IIB T5 Gb for Ta
–
60°C to +58°C
Certificate No.
SIRA 13ATEX1139X
IECEx SIR 13.0029X
Epsilon x
Equipment Group
and Category:
II 2G
CE Marking and
Notified Body No.
2813
4) 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 in
normal operation, and if it does, it will only exist
for a short time.
Gas Groupings
Group IIA
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene
Temperature Classification for Gas Applications
T1
450
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
T5
100ºC
T6
85ºC
Equipment Category
2G
Ambient Temperature Range
GNExS2
-60°C to +58°C
IP Rating
IP6X to EN/IEC60079-0
IP66 to EN60529
5) Special Conditions for Safe Use
Repair of the Flame Path is not permitted.
Figure 1: Flame Path.
The enclosure is non-conducting and under certain extreme
conditions may generate an ignition capable level of
electrostatic charge. The user shall ensure that the equipment
is not installed in a location where it may be subjected to
extreme conditions (such as high-pressure steam) which might
cause a build-up of electrostatic charge on non-conducting
surfaces.
6) Product Mounting and Access
6.1. Location and Mounting
The sounder should be secured to any flat surface using the
three 7mm fixing holes (see figures 2 or 3). The angle can then
be adjusted as required but the mounting restrictions must be
observed (see outline drawings for details, D157-05-101 for
GNExS2F and D157-05-151 for GNExS2H). This can be
achieved by loosening the two large bracket screws in the side
of the unit, which allow adjustments in steps of 18°.
