E2S GNExS1 User manual

INSTRUCTION MANUAL
GNExS1
Alarm Horn Sounder with relay / telephone initiate
For use in Flammable Gas Atmospheres
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: [phone]
Document No. D157-00-681-IS Issue 1 27-04-2023 Sheet 1 of 6
GNExS1R GNExS1F
1) Product Table
Unit Type Code Nominal
Input Voltage Voltage Range Nominal Input Current
Max.
Current
Sound
Pressure Level
dB(A)
Max* Nom.†
GNExS1RDC024-T 24Vdc 18-30Vdc 185mA 221mA 110 105
GNExS1RAC230-T
115Vac
100-260Vac 50/60Hz
73mA
80mA 110 105
230Vac 48mA
GNExS1FDC024-T 24Vdc 18-30Vdc 185mA 221mA 115 110
GNExS1FAC230-T 115Vac 100-260Vac 50/60Hz 73mA 80mA 115 110
230Vac 48mA
*Max = Tone 4
†Nom. = Tone 44
The table shows the input current taken by the various sounders.
The current levels shown above are for the 440Hz Continuous tone @ nominal input voltage.
Nominal current at nominal voltage.
Max rated current at worst case supply voltage.
*Special 12Vdc option is available
–
Contact E2S sales
Table 1: Electrical Ratings.
Ensure the system power supply is capable of providing the maximum current required for all sounders. Review associated cable size,
length and quantity of sounders on each circuit.

INSTRUCTION MANUAL
GNExS1
Alarm Horn Sounder with relay / telephone initiate
For use in Flammable Gas Atmospheres
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: [phone]
Document No. D157-00-681-IS Issue 1 27-04-2023 Sheet 2 of 6
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 / UKEX 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-T
GNExS1AC230-T
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
CSAE 21UKEX1558X
Epsilon x
Equipment Group
and Category:
II 2G
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.
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
E
q
ui
p
ment Cate
g
or
y
2G
Ambient Temperature Range
GNExS1 -60°C to +70°C
IP Rating
IP6X to EN/IEC60079-0
IP66 to EN60529

INSTRUCTION MANUAL
GNExS1
Alarm Horn Sounder with relay / telephone initiate
For use in Flammable Gas Atmospheres
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: [phone]
Document No. D157-00-681-IS Issue 1 27-04-2023 Sheet 3 of 6
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°.
Figure 2: Fixing Location for GNEx[S1R/S1F] Sounder.
On completion of the installation the two large bracket
adjustment screws on the side of the unit must be fully
tightened to ensure that the unit cannot move in service.
The enclosure provides IP66 protection and is suitable for
installation in exterior locations providing it is positioned so that
water cannot collect in the horn, and the cable entry is sealed.
6.2 Access to the Flameproof Enclosure
Warning – Hot surfaces. External
surfaces and internal components
may be hot after operation, take
care when handling the equipment.
In order to connect the electrical supply cables to the sounder
it is necessary to remove the flameproof cover to gain access
to the flameproof chamber. To achieve by loosening the M3
Grub Screw within the flameproof cover, and then unscrew
the flameproof cover, taking extreme care not to damage the
flameproof joints in the process (see figure 3).
Figure 3: Accessing the Explosion Proof Enclosure.
On completion of the cable wiring installation the flameproof
joints should be inspected to ensure that they are clean and
that they have not been damaged during installation.
Ensure that the ‘O’ ring seal is in place and undamaged.
When fitting the flameproof cover ensure the thread is
engaged correctly. Fully tighten the cover all the way, ensure
no gap is visible between the cover and base of the sounder
enclosure. Tighten the M3 grub screw.
7) Installation Requirements
7.1 Installation Standards Compliance
Warning – High voltage may be
present, risk of electric shock.
DO NOT open when energised,
disconnect power before opening.
The sounder must only be installed by suitably qualified
personnel in accordance with the latest issues of the relevant
standards:
EN60079-14:2008 / IEC60079-14:2007 (Ed4): Electrical
Installations in Hazardous Areas (other than mines).
EN60079-10-1:2009 / IEC60079-10:2008 (Ed1):
Classification of Areas, Gas Atmosphere
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.

INSTRUCTION MANUAL
GNExS1
Alarm Horn Sounder with relay / telephone initiate
For use in Flammable Gas Atmospheres
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: [phone]
Document No. D157-00-681-IS Issue 1 27-04-2023 Sheet 4 of 6
7.2 Cable Selection and Connections
When selecting the cable size, consideration must be given to
the input current that each unit draws (see table 1), the number
of sounders on the line and the length of the cable runs. The
cable size selected must have the necessary capacity to
provide the input current to all the sounders connected to the
line.
Electrical connections are to be made into the terminal blocks
on the PCBA located in the flameproof enclosure using solid
wire 0.5-4mm² / AWG 20-12 or stranded wire, sizes 0.5-
2.5mm² / AWG 24-14. Wire insulation needs to be stripped
8mm. Wires may be fitted securely with crimped ferrules.
Figure 4: Wire Preparation.
Terminal screws need to be tightened down with a tightening
torque of 0.45 Nm / 5 Lb-in. An 8-way terminal block is
provided on the AC Sounder, and a 6-way terminal block is
provided on the DC Sounder.
Figure 5: GNExS1 Entries and Terminal Block Location.
When connecting wires to the terminals great care should be
taken to dress the wires so that when the cover is inserted into
the chamber the wires do not exert excess pressure on the
terminal blocks. This is particularly important when using
cables with large cross-sectional areas such as 2.5mm².
7.3 Earthing
Please note that for AC supply voltage product versions the
Earth terminal on the PCBA does not provide an earth
connection to the product enclosure. The enclosure must be
independently earthed using either the external or internal
earth fixing point, (see fig 5 and notes below).
Both AC and DC sounder units must be connected to an earth
according to EN/IEC 60079/14. The units are provided with
internal and external earth terminals which are both located on
the terminal chamber section of the unit (see figure 5).
Internal earthing connections should be made to the Internal
Earth Stud of the housing using a ring crimp terminal to secure
the earth conductor between the two M4 stainless steel flat
washers. The earth conductor should be at least equal in size
and rating to the incoming power conductors.
External earthing connections should be made to the M5 earth
stud, using a ring crimp terminal to secure the earth conductor
to the earth stud between the two M5 stainless steel flat
washers, then reassemble the M5 spring washer and tighten
the M5 nut to ensure that the cable lug is secured against
loosening and twisting. The external earth conductor should be
at least 4mm2in size.
7.4 Cable Glands, Blanking Elements & Adapters
For high ambient temperatures the cable entry or the cable
branching point temperatures may exceed:
70ºC at entry point.
80ºC at branching point.
Therefore, suitable heat resisting cables and cable glands
must be used, with a rated service temperature at least as
stated in the table below:
Max Ambient Temperature (ºC)
Model 40 45 50 55 60 65 70
GNExS1 70 75 80 85 90 95
Table 2: Min. Ratings of Cables & Cable Glands.
Cable Glands
Appropriate cable glands to be customer supplied.
The cable entries have an M20 x 1.5 – 6H entry thread. Only
suitably rated and certified cable glands must be used. They
must be suitable for the type of cable being used and also meet
the requirements of the current installation standards EN
60079-14 / IEC60079-14.
Blanking Plugs
When only one cable entry is used the other entries must be
closed with suitably rated and certified blanking plugs as per
type of approval.
Any unused cable entries must be closed with suitably rated
blanking plugs.
Ingress Protection
If a high IP (Ingress Protection) rating is required, then a
suitable sealing washer must be fitted under the cable glands
or blanking plugs. A minimum ingress protection rating of IP6X
must be maintained for installations in explosive dust
atmospheres.
Adapters
The GNEx sounder range can be supplied with the following
types of adapters:

INSTRUCTION MANUAL
GNExS1
Alarm Horn Sounder with relay / telephone initiate
For use in Flammable Gas Atmospheres
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: [phone]
Document No. D157-00-681-IS Issue 1 27-04-2023 Sheet 5 of 6
M20 to ½” NPT
M20 to ¾” NPT
M20 to M25
It is important to note that stopping plugs cannot be fitted onto
adapters, only directly onto the M20 entries.
Any other adapters used must be suitably rated.
If the installation is made using conduit, openings must have a
sealing fitting connected as close as practical to the wall of the
enclosure, but in no case more than the size of the conduit or
50mm, whichever is the lesser.
8) Relay / Telephone Inputs and Settings
8.1 Power Input Terminal for AC & DC Wiring
A suitable power supply (DC or AC voltage) cable should
enter via one of the M20 entries and is to be connected to
terminal TB1 (see Fig. 6 below). This provides the alarm horn
sounder with continuous power.
DC Unit option: Connect the alarm horn sounder power input
(+) to the (L/+) terminal (TB1) and power input (-) to the (N/-)
at terminal (TB1).
AC Unit option: Connect the alarm horn sounder power input
(L) to the (L/+) terminal (TB1) and power input (N) to (N/-)
also an earth/ground input to the (E) terminal (TB1).
Please note: the earth/ground terminal of TB1 provides
termination only for an earth/ground cable. Refer to section
7.3.
For AC and DC voltage wiring diagrams see document D250-
06-001
Fig 6 : Input Wiring, DIP settings and Header Positions
8.2 Activation, Relay / Telephone Wiring Inputs and
Signal Type Header Setting (H1)
The H1 header selection configures the activation signal type.
Select H1 position marked AC for activation from an
analogue telephone external ringer output REN1 (typically
low current AC voltage around 90 to 150Vac)
Select H1 position marked DC for activation via a DC voltage
input of 10 to 60Vdc e.g. a digital PBX external ringer output
or a safety system relay output.
The activation input cables should utilise the second M20
cable entry and connect to terminal TB2.
Note: there is no polarity for this input.
Factory default H1 is set as AC for activation signal.
H1 Header Positions
Position DC Position AC (default)
DC H1 AC
A H2 B
Position A (default) Position B
H2 Header Positions
Fig 7 : Header H1 and H2 Positions
8.3 Unit Activation Mode - Pulsed or Latched, Header
Setting (H2)
The H2 header selection configures the alarm horn sounder
operation depending upon the type of activation signal.
Select H2 position option marked A for pulsed/cadence
mode. The alarm horn sounder audible output will follow the
telephone ring cadence or a pulsed relay input.
Option A is the factory default setting.
Select H2 position option marked B for latched mode. The
alarm horn sounder audible output will start when an initiation
signal is received and will not follow the telephone ringing
cadence. See section 8.4
Sounder
Volume Control
Sounder
Tone DIP
Switch S1
E
L/+
N/-
TB2 Relay
/Telephone
Input Signal
Relay / Telephone
Latch Duration
Setting
DIP Switch S1
TB1 Power Supply
Terminal
H2 H1
Header Header
A or B DC or Telephone
Activate
10-60 /
Tel

INSTRUCTION MANUAL
GNExS1
Alarm Horn Sounder with relay / telephone initiate
For use in Flammable Gas Atmospheres
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: [phone]
Document No. D157-00-681-IS Issue 1 27-04-2023 Sheet 6 of 6
8.4 Unit Latch mode duration DIP switch S1 setting
The relay/telephone latch duration setting is only applicable
when Header H2 is set to latched mode via header pin set to
position option B.
The alarm horn sounder is activated on the first telephone
ring (or relay pulsed input) and any other subsequent inputs
and will remain activated for the duration as set by DIP switch
S1.
This feature is useful where some countries have short
ringing cadence with long off cycle times and the customer
requires the alarm sounder to operate for longer periods to
better attract attention.
Where this feature becomes essential is for telephone/relay
activated beacons to function correctly in these parameters.
Factory default for the relay/telephone latch duration switch
setting is 0000.
See table for DIP switch S1 delay timing.
Unit activation period
(s) from start of
activation signal.
DIP Switch S1 Setting
(0000) = All off
1.5 0000
2.0 1000
2.5 0100
3.0 1100
3.5 0010
4.0 1010
4.5 0110
5.0 1110
5.5 1111
9) Sounder Tone Selection DIP switch S1
setting
The D1x Alarm Horn Sounders have 64 different tones.
The alarm tone is selected by operation of the tone setting DIP
switch S1 (see fig 5) on the PCB.
Note DIP switch S2 and multistage selection is not possible
with Relay / telephone activation unit.
Default = Switch 2
Not used in this unit.
Default = Switch 1
S1 – Tone 44
1 1 0 1 0 1
(ON = 1, OFF = 0)
Figure 8: DIP switch configuration
The tone table (D221-95-001-IS) shows the switch positions for the 64
tones, dependent on the sounder Stage 1 DIP switch S1 setting.
10) Maintenance, Overhaul and Repair
Maintenance, repair and overhaul of the equipment should
only be carried out by suitably qualified personnel in
accordance with the current relevant standards:
EN60079-19/IEC60079-19
Explosive atmospheres – Equipment repair, overhaul and
reclamation
EN 60079-17/IEC60079-17
Explosive atmospheres – Electrical installations inspection
and maintenance
Flameproof threaded joints and cemented joints are not
permitted to be repaired.
Units must not be opened while an explosive atmosphere is
present.
If opening the unit during maintenance operations a clean
environment must be maintained and any dust layer removed
prior to opening the unit.
Electrostatic charging hazard - Clean only with a damp cloth.

E2S Warning Signals Impress House, Mansell Road, Acton, London W3 7QH [email protected] e2s.com Page 1 of 1 D221-95-001-IS_Issue_C - 02/12/2022
1000Hz PFEER Toxic Gas
1200/500Hz @ 1Hz DIN /PFEER P.T.A.P.
1000Hz @ 0.5Hz(1s on, 1soff) PFEER Gen. Alarm
1.4KHz-1.6KHz 1s, 1.6KHz-1.4KHz 0.5s NF C 48-265
544Hz(100mS)/440Hz (400mS) NF S 32-001
1500/500Hz - (0.5s on , 0.5s off) x3 + 1s gap AS4428
500-1500Hz Sweeping 2 sec on 1 sec off AS4428
500/1200Hz @ 0.26Hz (3.3son, 0.5s off) Netherlands -
NEN 2575
1000Hz (1s on, 1s off)x7 + (7s on, 1s off) IMO Code 1a
1000Hz (1s on, 1s off)x7 + (7s on, 1s off) IMO Code 1a
420Hz(0.5s on, 0.5s off)x3 + 1s gap ISO 8201 Temporal
Pattern
1000Hz(0.5s on, 0.5s off)x3 + 1s gap ISO 8201 Temporal
Pattern
422/775Hz - (0.85 on, 0.5 off) x3 + 1s gap NFPA -
Temporal Coded
1000/2000Hz @ 1Hz Singapore
300Hz Continuous
440Hz Continuous
470Hz Continuous
500Hz Continuous IMO code 2 (Low)
554Hz Continuous
660Hz Continuous
800Hz IMO code 2 (High)
1200Hz Continuous
2000Hz Continuous
2400Hz Continuous
440Hz @0.83Hz (50
cycles/minute) Intermittent
470Hz @0.9Hz - 1.1s Intermittent
470Hz @5Hz - (5
cycles/second) Intermittent
544Hz @ 1.14Hz - 0.875s Intermittent
655Hz @ 0.875Hz Intermittent
660Hz @0.28Hz - 1.8sec
on, 1.8sec off Intermittent
660Hz @3.34Hz - 150mS
on, 150mS off Intermittent
745Hz @ 1Hz Intermittent
800Hz - 0.25sec on, 1 sec off Intermittent
800Hz @ 2Hz IMO code 3.a
(High) Intermittent
1000Hz @ 1Hz Intermittent
2400Hz @ 1Hz Intermittent
2900Hz @ 5Hz Intermittent
363/518Hz @ 1Hz Alternating
450/500Hz @ 2Hz Alternating
554/440Hz @ 1Hz Alternating
554/440Hz @ 0.625Hz Alternating
561/760Hz @0.83Hz (50
cycles/minute) Alternating
800/1000Hz @ 0.875Hz Alternating
2400/2900Hz @ 2Hz Alternating
500/1200Hz @ 0.3Hz Sweeping
560/1055Hz @ 0.18Hz Sweeping
560/1055Hz @ 3.3Hz Sweeping
660/1200Hz @ 1Hz Sweeping
800/1000Hz @ 1Hz Sweeping
800/1000Hz @ 7Hz Sweeping
800/1000Hz @ 50Hz Sweeping
2400/2900Hz @ 7Hz Sweeping
2400/2900Hz @ 1Hz Sweeping
2400/2900Hz @ 50Hz Sweeping
2500/3000Hz @ 2Hz Sweeping
2500/3000Hz @ 7.7Hz Sweeping
800Hz Motor Siren
1200Hz Motor Siren
2400Hz Motor Siren
Stage 1
Set DIP
SW 1
Tone No.
Tone Description Tone Visual
Stage 1 & 2
DIP SW 1/2
Settings
1 2 3 4 5 6
Stage 3
Set DIP
SW 1
(S3)
Stage 4
Set DIP
SW 1
(S2 + S3)
0 0 0 0 0 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
46
47
48
49
50
52
53
54
55
56
57
58
59
60
61
62
63
42
1 0 0 0 0 0
0 1 0 0 0 0
1 1 0 0 0 0
0 0 1 0 0 0
1 0 1 0 0 0
0 1 1 0 0 0
1 1 1 0 0 0
0 0 0 1 0 0
1 0 0 1 0 0
0 1 0 1 0 0
1 1 0 1 0 0
0 0 1 1 0 0
1 0 1 1 0 0
0 1 1 1 0 0
1 1 1 1 0 0
0 0 0 0 1 0
1 0 0 0 1 0
0 1 0 0 1 0
1 1 0 0 1 0
0 0 1 0 1 0
1 0 1 0 1 0
0 1 1 0 1 0
1 1 1 0 1 0
1 1 0 1 1 0
0 0 1 1 1 0
0 1 1 1 1 0
0 0 0 0 0 1
0 1 0 0 0 1
1 1 0 0 0 1
0 0 1 0 0 1
1 0 1 0 0 1
0 1 1 0 0 1
1 1 1 0 0 1
0 0 0 1 0 1
0 1 0 1 0 1
1 0 1 1 0 1
0 1 1 1 0 1
1 1 1 1 0 1
0 0 0 0 1 1
1 0 0 0 1 1
0 1 0 0 1 1
1 1 0 0 1 1
0 0 1 0 1 1
1 0 1 0 1 1
0 1 1 0 1 1
1 1 1 0 1 1
0 0 0 1 1 1
1 0 0 1 1 1
0 1 0 1 1 1
1 1 0 1 1 1
0 0 1 1 1 1
1 0 1 1 1 1
0 1 1 1 1 1
0 0 0 1 1 0
1 0 0 1 1 0
0 1 0 1 1 0
1 1 1 1 1 0
1 0 0 0 0 1
1 0 0 1 0 1
1 0 1 1 1 0
1000Hz
1200Hz
500Hz 1s
1000Hz 1s
1s
1600Hz
1400Hz 1s
0.5s
544Hz 0.1s
0.4s
440Hz
0.5s
1500Hz
500Hz 0.5s 0.5s 0.5s 0.5s 1s
2s 1s
3s 0.5s
1500Hz
500Hz
1200Hz
500Hz
1000Hz
1s
1s
1s
1s
1s
1s
1s
1s
1s
1s
1s
1s
1s
1s
7s
7s
420Hz 0.5s
0.5s
0.5s
0.5s
0.5s
1s
1000Hz 0.5s
0.5s
0.5s
0.5s
0.5s
1s
775Hz
422Hz 0.85 0.5s 0.85 0.5s 0.85
2000Hz
1000Hz
f(Hz)
a(s)
b(s)
(f=440, a=0.6, b=0.6)
(f=470, a=0.55, b=0.55)
(f=470, a=0.1, b=0.1)
(f=470, a=0.43, b=0.44)
(f=655, a=0.57, b=0.57)
(f=660, a=1.8, b=1.8)
(f=660, a=0.15, b=0.15)
(f=745, a=0.5, b=0.5)
(f=800, a=0.25, b=1)
(f=800, a=0.25, b=0.25)
(f=1000, a=0.5, b=0.5)
(f=2400, a=0.5, b=0.5)
(f=2900, a=0.1, b=0.1)
f1(Hz)
a(s)
f(Hz)
f1(Hz)
a(s) a(s)
f(Hz)
(f=363, f1=518, a=0.1)
(f=450, f1=500, a=0.25)
(f=440, f1=554, a=0.5)
(f=440, f1=554, a=0.8)
(f=561, f1=760, a=0.6)
0 0 1 1 0 1
1 1 0 1 0 1
43
44
45
780/600Hz @ 0.96Hz Alternating
800/1000Hz @ 2Hz Alternating
970/800Hz @ 2Hz Alternating
64 Simulated Bell 1 1 1 1 1 1
f1(Hz)
a(s) a(s)
f(Hz)
(f=800, f1=1000, a=0.57)
(f=2400, f1=2900, a=0.25)
f1(Hz)
a(s) a(s)
f(Hz)
(f=800, f1=1000, a=0.25)
f1(Hz) a(s) a(s)
f(Hz)
(f=600, f1=780, a=0.52)
f1(Hz) a(s) a(s)
f(Hz)
(f=800, f1=970, a=0.25)
(f=500, f1=1200, a=3.34)
(f=560, f1=1055, a=5.47)
(f=560, f1=1055, a=0.3)
f1(Hz)
a(s)
f(Hz)
51 600/1250Hz @ 0.125Hz Sweeping (f=600, f1=1250, a=8)
f(Hz)
a(s)
(f=800, a=1.6)
(f=1200, a=2)
(f=2400, a=1.7)
1450Hz 0.25s
0.69ms
(f=660, f1=1200, a=1)
(f=800, f1=1000, a=1)
(f=800, f1=1000, a=0.14)
(f=800, f1=1000, a=0.02)
(f=2400, f1=2900, a=0.14)
(f=2400, f1=2900, a=1)
(f=2400, f1=2900, a=0.02)
(f=2500, f1=3000, a=0.5)
(f=2500, f1=3000, a=0.13)
(f=300)
(f=440)
(f=470)
(f=500)
(f=554)
(f=660)
(f=800)
(f=1200)
(f=2000)
(f=2400)
f(Hz)
0.5s
2
3
2
24
19
44
44
24
34
34
1
1
1
3
44
44
44
24
24
24
24
24
24
24
24
24
24
8
8
24
8
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
8
8
24
8
21
24
24
24
24
24
24
24
24
24
3
20
44
44
44
1
1
1
1
35
1
1
8
8
8
35
8
8
8
8
8
8
8
8
8
19
19
19
19
19
19
19
19
19
19
19
19
19
19
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
1
1
8
8
8
35
35
35
35
35
f1(Hz)
a(s)
f(Hz)
0.5s 0.5s
1s

warning signals
2S
ALERTALARM RANGE
EUROPEAN SAFETY SYSTEMS LTD
IMPRESS HOUSE
MANSELL ROAD
ACTON
LONDON W3 7QH
WWW.E2S.COM
C
THIS DRAWING AND ANY INFORMATION OR DESCRIPTIVE
MATTER THEREIN IS COMMUNICATED IN CONFIDENCE AND
IS THE COPYRIGHT PROPERTY OF EUROPEAN SAFETY
SYSTEMS LTD. NEITHER THE WHOLE OR ANY EXTRACT MAY
BE DISCLOSED, LOANED, COPIED OR USED FOR
MANUFACTURING OR TENDERING PURPOSES WITHOUT THEIR
WRITTEN CONSENT.
EUROPEAN SAFETY SYSTEMS LTD.
AS PER LATEST DATE OF ISSUE SHOWN ABOVE
DRAWING TO BS8888:2000
GEOMETRIC TOLERANCES TO ISO1101:1983
LINEAR DIMENSIONAL TOLS
ANGULAR DIMENSIONAL TOLS
STANDARDS
MOD No. REASON - INITIAL - DATEISSUE
DATE
APPROVED
CHECKED DATE
DATE
DRAWN WEIGHT (Kg)
SURFACE FINISH
MATERIAL
ALTERNATIVE MATERIAL SHEETSCALE
TITLE
A3
IF IN DOUBT, ASK -
DO NOT SCALE
ALL DIMENSIONS IN MM
DRAWING NUMBER
A
B
C
D
E
F
G
109
G
F
E
78 6
5
D
C
134
2
A
B
D250-06-001
R.N.POTTS
OF
TELEPHONE / RELAY ACTIVATION
MODULE WIRING DIAGRAMS
INTRODUCTION
NTS 11
DC Power Input Configuration Config.: 1
Used to Activate DC Sounder or Beacon Units
With Telephone or Relay Signal
Maintain DC Power to TB1
Stage 1 only : Apply Signal to TB2 Singal Input Terminals
16/03/2023
A
16/03/2023
16/03/2023
RNP 31/03/2023
R.S.RAIT
R.N.POTTS
N/-
L/+
E
TB1 POWER
SUPPLY
TERMINALS
TB2 RELAY /
TELEPHONE
INPUT SIGNAL
TERMINALS
Live In
Neutral In
Earth In
N/-
L/+
E
TB1 POWER
SUPPLY
TERMINALS
TB2 RELAY /
TELEPHONE
INPUT SIGNAL
TERMINALS
+ve In
-ve In
AC Power Input Configuration Config.: 2
Used to Activate AC Sounder or Beacon Units
With Telephone or Relay Signal
Maintain AC Power to TB1
Stage 1 only : Apply Signal to TB2 Singal Input Terminals
10-60 VDC RELAY, OR,
TELEPHONE RINGER
SIGNAL REN 1
(TYPICALLY LOW CURRENT
90-150VAC)
10-60 VDC RELAY, OR,
TELEPHONE RINGER
SIGNAL REN 1
(TYPICALLY LOW CURRENT
90-150VAC)

E2S Telephone: [phone] Fax: [phone] Email: [e-mail] www.e2s.com DC-038_Issue_F (GNExS, GNExL) - Page 1 of 2 -
QAF_252_Issue_5
EU Declaration of Conformity
Manufacturer: European Safety Systems Ltd.
Impress House, Mansell Road, Acton
London, W3 7QH
United Kingdom
Authorised Representative: E2S Warnsignaltechnik UG
Charlottenstrasse 45-51
72764 Reutlingen
Germany
Equipment Type: GNExS1, GNExS2
GNExL1, GNEXL2
Directive 2014/34/EU: Equipment and Protective Systems for use in Potentially Explosive Atmospheres (ATEX)
Notified Body for EU type Examination (Module B):
Sira Certification Service
Notified Body No.: 2813
CSA Group Netherlands B.V, Utrechtseweg 310, 6812 AR, Arnhem, Netherlands
EU-type Examination Certificate (Module B):
Sira 13ATEX1139X
Notified Body for Quality Assurance Notification / Conformity to EU-type
based on
quality assurance of the production process (Module D):
Sira Certification Service
Notified Body No.: 2813
CSA Group Netherlands B.V, Utrechtseweg 310, 6812 AR, Arnhem, Netherlands
Quality Assurance Notification (Module D):
SIRA 05 ATEX M342
Provisions fulfilled by the equipment:
II 2G Ex db IIB or IIC T3, T4, T5 or T6 Gb
Standards applied:
EN 60079-0:2018
EN 60079-1:2014 A/C:2018
Directive 2014/30/EU: Electromagnetic Compatibility Directive (EMC)
Standards applied:
EN 61000-6-1:2007
EN 61000-6-2:2005
EN 61000-6-3:2007 / A1:2011 / AC: 2012
EN 61000-6-4:2007 / A1: 2011
Directive 2011/65/EU: Restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS)
The product and all the components contained within it are in accordance with the restriction of the use of hazardous substances in electrical and electronic
equipment, including amendment by Directive 2015/863/EU.
Regulation (EC) 1907/2006: Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)
The product and all the components contained within it are free from substances of very high concern.
Other Standards and Regulations
EN 60529:1992+A2:2013 - Degrees of protection provided by enclosures (IP code) –enclosure rated IP66/67

E2S Telephone: [phone] Fax: [phone] Email: [e-mail] www.e2s.com DC-038_Issue_F (GNExS, GNExL) - Page 2 of 2 -
QAF_252_Issue_5
Martin Streetz
Document No.:
DC-038_Issue_F
Quality Assurance Manager
Date and Place of Issue:
London, 23/12/2020
EU Declaration of Conformity
On behalf of European Safety Systems Ltd., I declare that, on the date the equipment accompanied by this declaration is placed on the market, the equipment
conforms with all technical and regulatory requirements of the above listed directives, regulations and standards.
This Declaration is issued under the sole responsibility of the manufacturer.

E2S Telephone: [phone] Fax: [phone] Email: sal[email protected] www.e2s.com DC-095_Issue_A (GNExS, GNExL) - Page 1 of 1
QAF_252_Issue_5
Martin Streetz Document No.: DC-095_Issue_A
Quality Assurance Manager Date and Place of Issue: London, 04/02/2022
UKCA Declaration of Conformity
Manufacturer: European Safety Systems Ltd.
Impress House, Mansell Road, Acton
London, W3 7QH
United Kingdom
Equipment Type: GNExS1, GNExS2
GNExL1, GNEXL2
Directive UKSI 2016:1107 (as amended by UKSI 2019:696) – Schedule 3A, Part 1 : Product or Protective System Intended for use in Potentially Explosive Atmospheres
(UKCA)
Notified Body for
UK
type Examination
(Module B)
:
Sira Certification Service
Notified Body No.: 0518
Rake Lane, Eccleston, Chester CH4 9JN, UK
UK
-
type Examination Certificate
(Module B)
:
CSAE 21
UKEX1558X
Notified Body for Quality Assurance
Notification
/
Conformity to EU
-
type
based on
quality assurance of the production process (Module D):
Sira Certification Service
Notified Body No.: 0518
Rake Lane, Eccleston, Chester CH4 9JN, UK
Quality Assurance Notification
(Module D)
:
CSAE 22UKQAN0046
Provisions fulfilled by the equipment:
II 2G
Ex d
b
IIB or IIC T3, T4, T5 or T6
Gb
Standards applied:
EN 60079
-
0:201
8
EN 60079-1:2014 A/C:2018
Directive 2014/30/EU: Electromagnetic Compatibility Directive (EMC)
Standards applied:
EN
61000
-
6
-
1:2007
EN 61000-6-2:2005
EN 61000-6-3:2007 / A1:2011 / AC: 2012
EN 61000-6-4:2007 / A1: 2011
Directive 2011/65/EU: Restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS)
The product and all the components contained within it are in accordance with the restriction of the use of hazardous substances in electrical and electronic
equipment, including amendment by Directive 2015/863/EU.
Regulation (EC) 1907/2006: Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)
The product and all the components contained within it are free from substances of very high concern.
Other Standards and Regulations
EN 60529:1992+A2:2013 - Degrees of protection provided by enclosures (IP code) – enclosure rated IP66/67
On behalf of European Safety Systems Ltd., I declare that, on the date the equipment accompanied by this declaration is placed on the market, the equipment
conforms with all technical and regulatory requirements of the above listed directives, regulations and standards.
This Declaration is issued under the sole responsibility of the manufacturer.