E2S GNEXS1DC024 Instruction Manual

1) Introduction
The GNExS2 and GNExS1 are flameproof sounders which
are certified to meet the requirements of the ATEX directive
94/9/EC and the IECEx scheme. The sounders produce loud
warning signals and can be used in hazardous areas where
potentially flammable atmospheres may be present. Sixty-
four different stage alarm sounds can be selected by internal
switches to independently set the first stage and second
stage, the third and fourth stages are externally changed (see
tone table on Page 5/6). The GNExS2 unit produces output
levels in the 117dB (A) range and the GNExS1 unit produces
output levels in the 110dB (A) range.
The sounders are Group II, EPL (equipment protection level)
Gb. Dependant on unit type and ambient temperature the
equipment is certified 'Ex d IIC Gb' and as such may be used
in Zones 1 and 2 with flammable gases and vapours with
apparatus groups IIA,
Classifications of T1, T2, T3 and T4 dependant on ambient
temperature, see marking codes in section 2.
The equipment is also certified 'Ex d IIB Gb' and as such may
be used in Zones 1 and 2 with flammable gases and vapours
with apparatus groups
Classifications of T1, T2, T3, T4, T5 and T6 dependant on
ambient temperature, see marking codes in section 2.
2) Marking
All units have a rating label, which carries the following
important information:-
or
Unit Type No. GNExS2
Input Voltage: GNExS1
10-30Vdc or 48Vdc
100 - 260Vac/dc
Codes: GNExS1
Ex d IIC T4 Gb for Ta –60°C to +50°C
Ex d IIC T3 Gb for Ta –60°C to +70°C
Ex d IIB T6 Gb for Ta –60°C to +50°C
Ex d IIB T5 Gb for Ta –60°C to +65°C
Ex d IIB T4 Gb for Ta –60°C to +70°C
Codes: GNExS2
Ex d IIC T4 Gb for Ta –60°C to +50°C
Ex d IIC T3 Gb for Ta –60°C to +58°C
Ex d IIB T6 Gb for Ta –60°C to +50°C
Ex d IIB T5 Gb for Ta –60°C to +58°C
SIRA 13ATEX1139X
Certificate No.
IECEx SIR 13.0029X
Epsilon x:
Equipment Group
and Category:
CE Marking:
Notified Body No.
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INSTRUCTION MANUAL (ATEX / IECEx)
GNExS2 and GNExS1
IIB & IIC and temperature
IIA & IIB and temperature
GNExS1
GNExS2
10-30Vdc or 48Vdc
100 - 260Vac
II 2G
0518
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Flameproof Sounders
"Warnings"
DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE
PRESENT
ELECTROSTATIC HAZARD - CLEAN ONLY WITH A DAMP CLOTH
IF TEMPERATURE EXCEEDS 70ºC
BRANCHING POINT USE SUITABLY RATED CABLE AND CABLE
GLANDS
Year of Construction /
Serial No.
3) Type Approval Standards
The sounders have an EC Type Examination and IECEx
certificates issued by KEMA and have been approved to the
following standards:-
EN60079-0:2012 IEC60079-0:2011 (Ed6)
EN60079-1:2007 IEC60079-1:2007 (Ed6)
4) Installation Requirements
The sounders must be installed in accordance with the latest
issues of the relevant parts of the EN 60079 and IEC60079
standards – Selection, Installation and maintenance of
electrical apparatus for
atmospheres (other than mining applications or explosive
processing and manufacture):-
EN60079-14:2008 Electrical Installations in Hazardous
IEC60079-14:2007 (Ed4) Areas (other than mines)
EN60079-10-1:2009 Classification of Areas, Gas
Atmosphere
IEC60079-10:2008 (Ed1)
The installation of the units must also be in accordance with
any local codes that may apply and should only be carried
out by a competent electrical engineer who has the
necessary training.
5) Zones, Gas Group, Category and Temperature
Classification
The GNExS2 and GNExS1 sounders have been certified Ex
d IIC T4 , T3 and Ex d IIB T6 , T5 ,T4 dependant on ambient
temperature for full marking see section 2. This means that
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,
and if it does, it will only exist for a short time.
Gas Groupings:
Group IIA
Group IIB
Group IIC
AT ENTRY OR 80ºC AT
i.e. 13 / 1GS23000001
General Requirements
Flameproof Enclosure 'd'
use in potentially explosive
Propane
Ethylene
Hydrogen and Acetylene