E2S GNExL2 Instruction Manual

1) Introduction
The GNExL2 and GNExL1 are second generation flameproof
loudspeakers which are certified to meet the requirements of
the ATEX directive 94/9/EC and the IECEx scheme. The
loudspeakers can be used in hazardous areas where
potentially flammable atmospheres may be present. There are
four versions of each loudspeaker, 8 ohm or 16 ohm and
70V/100V Line transformer. On 70V/100V line transformer
units there are four output tappings for each size of
loudspeaker. The GNExL2 unit produces output levels in the
117dB(A) range and the GNExL1 unit produces output levels
in the 112dB(A) range.
The loudspeakers are Group II, EPL (equipment protection
level) Gb. Dependant on unit type and ambient temperature
the equipment is certified 'Ex db IIC Gb' and as such may be
used in Zones 1 and 2 with flammable gases and vapours with
apparatus groups IIA, IIB & IIC and temperature Classifications
of T1, T2, T3 and T4 dependant on ambient temperature, see
marking codes in section 2.
The equipment is also certified 'Ex db 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:-
ExL2 or
Unit Type No. GN
Impedance: 8 ohm or 16 ohm
70V Line or 100V Line
Codes: GNExL1
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
Codes: GNExL2
Ex db IIC T4 Gb for Ta –60°C to +50°C
Ex db IIC T3 Gb for Ta –60°C to +65°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
SIRA 13ATEX1139X
Certificate No.
IECEx SIR 13.0029X
Epsilon x:
Equipment Group
and Category:
__________________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D157-00-201
INSTRUCTION MANUAL (ATEX)
GNExL2 and GNExL1
IIA & IIB and temperature
ExL1
GN
II 2G
Issue 3 25-06-20
Flameproof Loudspeakers
CE Marking:
Notified Body No.
"Warnings"
DO NOT OPEN WHEN ENERGISED
DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE
PRESENT
ELECTROSTATIC HAZARD - CLEAN ONLY WITH A DAMP CLOTH
IF TEMPERATURE EXCEEDS 70ºC AT ENTRY OR 80ºC AT
BRANCHING POINT USE SUITABLY RATED CABLE AND CABLE
GLANDS
Year of Construction /
Serial No.
3)
Type Approval Standards
The loudspeakers have an EC Type examination certificate
issued by SIRA and have been approved to the following
standards:-
EN60079-0:2018 EN IEC60079-0:2018
EN60079-1:2014 A/C:2018 EN 60079-1:2014 ed. 7
4)
Special Conditions for Safe Use
4.1) Installation
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
atmospheres (other than mining applications or explosive
processing and manufacture):-
EN60079-14:2008
IEC60079-14:2007 (Ed4)
EN60079-10-1:2009
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.
4.2) Specific Conditions
Flameproof joints shall not be repaired or modified in any way
(See figures 1 & 2 for location of flameproof joints).
The enclosure is non-conducting and under certain extreme
conditions may generate an ignition capable level of
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Sheet 1 of 4
2813
i.e. 20 / 1GL25000001
General Requirements
Flameproof Enclosure 'd'
for use in potentially
Electrical Installations in Hazardous
Areas (other than mines)
Classification of Areas, Gas
Atmosphere
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Fax: +44 (0)208 740 4200
explosive
(1)