E2S BExBG10D-P User manual

_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: [phone]
www.e-2-s.com Fax: [phone]
Document No. D210-00-211-IS Issue 3 20-04-2020 Sheet 1 of 5
INSTRUCTION MANUAL (ATEX / IECEx)
BExBG10D-P and BExBG15D-P
Flameproof Xenon Beacons
For use in Flammable Gas and Dust Atmospheres
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.
1) Warnings
DO NOT OPEN WHEN AN EXPLOSIVE
ATMOSPHERE IS PRESENT
DO NOT OPEN WHEN ENERGIZED
POTENTIAL ELECTROSTATIC CHARGING
HAZARD –CLEAN ONLY WITH A DAMP
CLOTH
COVER BOLTS CLASS A4-80
USE HEAT RESISTING CABLES AND CABLE
GLANDS (RATED 110°C) AT AMB.
TEMPERATURES OVER 40°C
2) Rating & Marking Information
All units have a rating label, which carries the following
important information:-
Model No.: BExBG10D-P or BExBG15D-P
Input Voltage: DC Units 24V or 48V or 12V (10J only)
AC Units 230V or 115V
BExBG10D-P & BExBG15D-P Codes:
Ex db IIC T4 Gb Ta. -50°C to +50°C
Ex db IIC T3 Gb Ta. -50°C to +70°C
Ex tb IIIC T120°C Db Ta. -50°C to +40°C
Ex tb IIIC T135°C Db Ta. -50°C to +55°C
Ex tb IIIC T150°C Db Ta. -50°C to +70°C
Certificate No. KEMA 00ATEX2006X
IECEx KEM 10.0002X
The BExBG10D-P and BExBG15D-P beacons have been
certified for use in locations with the following conditions:
Area Classification Gas:
Zone 1
Explosive gas atmosphere likely to occur
in normal operation.
Zone 2
Explosive gas atmosphere not likely to
occur in normal operation but may be
present for short periods.
Gas Groupings:
Group IIA
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene
Temperature Classification:
T1
400oC
T2
300oC
T3
200oC
T4
135oC (up to +50°C upper ambient)
Area Classification Dust:
Zone 21
Explosive dust atmosphere likely to occur
in normal operation.
Zone 22
Explosive dust atmosphere not likely to
occur in normal operation but may be
present for short periods.
Dust Groups:
Group IIIA
Combustible Dust
Group IIIB
Non-Conductive Dust
Group IIIC
Conductive Dust
Maximum Surface Temperature for Dust Applications:
120ºC at +40°C ambient
135ºC at +55°C ambient
150ºC at +70°C ambient
IP Rating: IP66/67 to EN/IEC60529 and IP6X to
EN/IEC60079-0, EN/IEC60079-31
Equipment Category: 2G / 2D
Equipment Protection Level: Gb / Db
Ambient Temperature Range:
-50°C to +70°C Gas Groups IIA, IIB and IIC
-50°C to +70°C Dust Groups IIIA, IIIB and IIIC
2813
II 2G
II 2D
Epsilon x:
Equipment Group and
Category:
CE Marking
Notified Body No.
BExBG10D-P / BExBG15D-P

_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: [phone]
www.e-2-s.com Fax: [phone]
Document No. D210-00-211-IS Issue 3 20-04-2020 Sheet 2 of 5
3) Type Approval Standards
The beacons have an EC Type examination certificate and
IECex Certificate of Conformity issued by Dekra and have
been approved to the following standards:
EN60079-0:2012 + A11 and EN IEC 60079-0 :2018 /
IEC60079-0:2017 (Ed 7): Explosive Atmospheres -
Equipment. General requirements
EN60079-1:2014 / IEC60079-1:2014 (Ed 7): Explosive
Atmospheres - Equipment protection by flameproof
enclosures "d"
EN60079-31:2014 / IEC60079-31:2013 (Ed2):
Explosive Atmospheres - Equipment dust ignition protection
by enclosure "t"
4) Installation Requirements
The beacons must only be installed by suitably qualified
personnel in accordance with the latest issues of the relevant
standards:
EN60079-14 / IEC60079-14: Explosive atmospheres -
Electrical installations design, selection and erection
EN60079-10-1 / IEC60079-10-1: Explosive atmospheres -
Classification of areas. Explosive gas atmospheres
EN60079-10-2 / IEC60079-10-2: Explosive atmospheres –
Classification of areas. Explosive dust atmospheres
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) Special Conditions of Use
Repair of the flamepath / flameproof joints is not permitted.
The enclosure is non-conducting and may generate an
ignition-capable level of electrostatic charges under certain
extreme conditions (such as high-pressure steam). 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.
Additionally, cleaning of the equipment should be done only
with a damp cloth.
6) 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.
SAFETY WARNING: The BExBG10D-P and BExBG15D-P
10 and 15 joule beacons must be mounted with their
flashdome in a position between upright and 90º as shown.
The beacons should be securely bolted to a suitable surface
using at least two of the 7mm diameter boltholes in the
stainless steel U shaped mounting bracket (see figure 1). The
angle can then be adjusted as required but the mounting
restrictions must be observed (see above). This can be
achieved by loosening the two large bracket screws in the
side of the unit, which allow adjustment in steps of 18°. 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.
Fig 1. Fixing Location for Beacon
7) Access to the Flameproof Enclosure
To access the Ex d chamber, remove the four M6 hexagon
socket head screws and withdraw the flameproof cover taking
extreme care not to damage the flameproof joints in the
process. M6 cover screws are Class A4-80 stainless steel
and only screws of this category can be used for the
enclosure.
Fig. 2 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.
Check that the earth bonding wire between the two casting
sections is secure and the ‘O’ ring seal is in place. When
replacing the flameproof cover casting ensure that it is square
with the flameproof chamber casting before inserting.
Carefully push the cover in place allowing time for the air to
be expelled. Only after the cover is fully in place should the
four M6 Stainless Steel A4-80 cover bolts and their spring
washer be inserted and tightened down. If the cover jams
while it is being inserted, carefully remove it and try again.
Never use the cover bolts to force the cover into position.
Warning –Hot surfaces. External surfaces
and internal components may be hot after
operation, take care when handling the
equipment.
Warning –High voltage may be present,
risk of electric shock. DO NOT open when
energised, disconnect power before
opening.
90º
Flameproof cover
M6 Cover
Screws
M6 Spring
Washer
(Appropriate cable glands
to be customer supplied)

_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: [phone]
www.e-2-s.com Fax: [phone]
Document No. D210-00-211-IS Issue 3 20-04-2020 Sheet 3 of 5
8) Power Supply Selection
It is important that a suitable power supply is used to run the
equipment. The power supply selected must have the
necessary capacity to provide the input current to all of the
units.
The following table shows the input current taken by the
various beacons and shows the maximum voltage at which
the beacons can be operated:
Model No.
Nominal I/P
Voltage
Input
Current
Max. I/P
Volts
BExBG10DPDC012
12Vdc
1.45A
14V
BExBG10DPDC024
24Vdc
660mA
28V
BExBG10DPDC048
48Vdc
340mA
54V
BExBG10DPAC115
115V ac
250mA
126V
BExBG10DPAC230
230Vac
110mA
253V
BExBG15DPDC024
24Vdc
860mA
28V
BExBG15DPDC248
48Vdc
480mA
54V
BExBG15DPAC115
115V ac
360mA
126V
BExBG15DPAC230
230Vac
170mA
253V
The input current will vary according to the voltage input
level. The current levels shown above are for nominal input
voltage.
9) Selection of Cable, Cable Glands and
Blanking elements
When selecting the cable size, consideration must be given
to the input current that each unit draws (see table above),
the number of beacons 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 of the beacons
connected to the line.
For ambient temperatures over +40ºC the cable entry
temperature may exceed +70ºC and therefore suitable heat
resisting cables and cable glands must be used, with a rated
service temperature of at least 110ºC
The BExBG10D-P and BExBG15D-P beacons have dual
cable gland entries which have an M20 x1.5. The dual cable
gland entries have an M20 x 1.5 entry thread. To maintain the
ingress protection rating and mode of protection, the cable
entries must be fitted with suitably rated ATEX / IECEx
certified cable glands and/or suitably rated ATEX / IECEx
certified blanking devices during installation according to EN /
IEC60079-14.
If a high IP (Ingress Protection) rating is required then a
suitable sealing washer must be fitted under the cable glands
or blanking plugs.
For use in explosive dust atmospheres, a minimum ingress
protection rating of IP6X must be maintained.
The BEx beacon range can be supplied with the following
types of adapters:
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 and ATEX /
IECEx certified adapters.
10) Earthing
Both AC and DC beacon units must be connected to an
earth. The units are provided with internal and external
earthing terminals which are both located on the terminal
chamber section of the unit.
Fig 3. Internal View of Cover
When using the internal earth terminal ensure that the
stainless steel M4 flat washer is between the incoming earth
wire and the enclosure.
Internal earthing connections should be made to the Internal
Earth terminal in the base of the housing using a ring crimp
terminal to secure the earth conductor under the earth clamp.
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. The external earth conductor
should be at least 4mm² in size.
11) Cable Connections
Electrical connections are to be made into the terminal blocks
on the PCBA located in the flameproof enclosure. See
section 7 of this manual for access to the flameproof
enclosure.
Wires having a cross sectional area between 0.5 mm² to
2.5mm² can be connected to each terminal way. If an input
and output wire is required the 2-off Live/Neutral or +/-
terminals can be used. If fitting 2-off wires to one terminal
way the sum of the 2-off wires must be a maximum cross
sectional area of 2.5mm². Strip wires to 8mm. Wires may also
be fitted using ferrules. Terminal screws need to be tightened
down with a tightening torque of 0.45 Nm / 5 Lb-in. 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.
External Earthing
Internal
Earthing
2-off M20
Cable
Entries
Internal
Bonding
Wire
Terminal

_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: [phone]
www.e-2-s.com Fax: [phone]
Document No. D210-00-211-IS Issue 3 20-04-2020 Sheet 4 of 5
Fig 4. Internal View of BExBG10D and BExBG15DD 10 and
15 Joule Beacons
12) AC Wiring
A 4-way terminal block is provided on the AC beacon. There
are 2-off Live and 2-off Neutral terminals in total.
12.1 Wiring Diagram
Fig. 4 AC Simplified Block Diagram
Fig. 5 AC Terminals
13) DC Wiring
A 4-way terminal block is provided on the AC beacon. There
are 2-off +ve and 2-off -ve terminals in total.
13.1 Wiring Diagram
Fig. 6 DC Simplified Block Diagram
Fig. 7 DC Terminals
13.2 Line Monitoring
On the BExBG10D-P and BExBG15D-P DC beacons, dc
reverse line monitoring can be used if required. All DC
beacons have a blocking diode fitted in their supply input
lines. An end of line monitoring diode or an end of line
monitoring resistor can be connected across the +ve and –ve
terminals. If an end of line resistor is used it must have a
minimum resistance value of 3k3 ohms and a minimum
wattage of 0.5 watts or a minimum resistance value of 500
ohms and a minimum wattage of 2 watts.
Fig. 9 End of Line Resistor Placement
14) Settings
14.1 Synchronised Operation
All BExBG10D-P and BExBG15D-P beacons that are
connected to the same supply line will have a synchronised
flash rate at one flash every second. To ensure that the units
will be synchronised check that the pin header is not fitted,
i.e. the two header pins are not shorted together (see Figure
10).
Fig. 10 Header Pin Settings
Supply
Terminals
Flip / Flop
Terminal
Header
+ + - -
LLNN
End of Line Resistor
Not
shorted
together
Shorted
together

_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: [phone]
www.e-2-s.com Fax: [phone]
Document No. D210-00-211-IS Issue 3 20-04-2020 Sheet 5 of 5
14.2 Flip-Flop Operation
Two beacons can be mounted close to each other to form a
flip-flop operation, where the beacons will flash alternately.
To achieve this mode of operation, fit a pin header to the flip-
flop header pins on the electronics board, i.e. the two header
pins are shorted together, (see figure 10) on one of the two
beacons. The first flash on the beacon that has the header
fitted will be delayed by ½ second. The two beacons will then
flash alternately every ½ a second.
15) Interchangeable & Spare Parts
The beacon cover is interchangeable, contact E2S Ltd for a
replacement cover available in various colours.
To change the cover, unscrew the M5 socket head screws
and remove the M5 screws, M5 spring & flat washers.
Fig. 11 Removal of cover
Remove the guard and replace the old cover with the new
cover.
Fig. 12 Changing of cover
Fit the guard back on to the cover and casting, align the
holes of the guard, cover and casting. To reattach the cover,
the fixings MUST be in the order shown in figure 12.
Fig. 13 Cover and Guard Fixtures
16) 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 Explosive atmospheres - Equipment repair,
overhaul and reclamation
IEC60079-19
EN 60079-17 Explosive atmospheres - Electrical
installations inspection and maintenance
IEC60079-17
To avoid a possible ELECTROSTACTIC CHARGE the unit
must only be cleaned with a damp cloth.
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.
Flameproof threaded joints and cemented joints are not
intended to be repaired.
Warning –Hot surfaces. External surfaces
and internal components may be hot after
operation, take care when handling the
equipment.
M5x16 Hex Socket Screw
M5 Spring Washer
M5 Plain Washer
Guard
Cover
M5x16 Hex
Socket Screw
Old
Cover
New
Cover