European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D157-00-001-IS
Issue 7
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
GNExS1DC024
GNExS1DC048
GNExS1AC230
Ex db IIC T4 Gb for Ta
–
60°C to +50°C
Ex db IIC T3 Gb for Ta
–
60°C to +70°C
Ex db IIB T6 Gb for Ta
–
60°C to +50°C
Ex db IIB T5 Gb for Ta
–
60°C to +65°C
Ex db IIB T4 Gb for Ta
–
60°C to +70°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
GNExS1
-60°C to +70°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 figure 2). The angle can then be
adjusted as required but the mounting restrictions must be
observed (see outline drawings for details, D157-05-001 for
GNExS1F and D157-05-051 for GNExS1R). This can be
achieved by loosening the two large bracket screws in the side
of the unit, which allow adjustments in steps of 18°.
