E2S GNExB1X05, Instruction Manual, Page: 2 / 12

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European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D155-00-201-IS Issue 3 28-11-22 Sheet 2 of 5
Certificate No. DEMKO 15ATEX1448X
IECEx UL15.0003X
UL21UKEX2136X
ATEX Mark, Equipment
Group and Category:
II 2G
II 2D
CE Marking and
Notified Body No.
2813
UKCA Marking and
Notified Body No.
0518
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.
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.
Gas Groupings
Group IIA Propane
Group IIB Ethylene
Group IIC Hydrogen and Acetylene
Temperature Classification for Gas Applications
T1 450ºC
T2 300ºC
T3 200ºC
T4 135ºC
T5 100ºC (Up to 55ºC Ambient)
T6 85ºC (Up to 40ºC Ambient)
Dust Groupings
(ATEX / IECEx / UKEX only)
Group IIIA Combustible Flyings
Group IIIB Non-conductive Dust
Group IIIC Conductive Dust
Maximum Surface Temperature for Dust Applications
(ATEX / IECEx / UKEX only)
GNExB2X05 110ºC
Equipment Category
2G / 2D
Ambient Temperature Range
-50°C to +70°C
IP Rating
IP6X to EN/IEC60079-0
IP66 to EN60529
5)
Special Conditions for safe use
The enclosure is non-conducting and may generate an
ignition-capable level of electrostatic charges under certain
extreme conditions. The user should ensure that the
equipment is not installed in a location where it may be
subjected to external conditions that might cause a build-up
of electrostatic charges on non-conducting surfaces.
The stainless steel beacon guard is not earthed and may
generate an ignition-capable level of electrostatic charges. It
has a capacitance of 10pF according to EN/IEC60079-0,
clause 7.5.
The flash dome guard must not be removed from the unit at
any time whilst in service.
All entries must be fitted with a suitable seal at the interface
with enclosure.
6) Product Mounting and Access
6.1. Location and Mounting
The location of the beacons should be made with due regard
to the area over which the warning signal must be visible.
They should only be fixed to services that can carry the
weight of the unit.
The beacons should be securely bolted to a suitable surface
using the 7mm diameter bolt holes in the base of the unit
(see figure 1).
Flashdome
Guard
Flameproof
Lid Moulding
Flameproof
Chamber
External Earth
Stud
Figure 1