Location And Mounting; Safety Warning; Power Supply Selection - E2S BExCBG05-05D Instruction Manual

Atex / iecex. flameproof combined beacon / beacon for use in flammable gas and dust atmospheres
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IP Rating:
IP67
Equipment Category:
Ambient Temperature Range:
6)

Location and Mounting

The location of the unit should be made with due regard to
the area over which both beacon warning signals must be
visible. The unit should only be fixed to services that can
carry the weight of the unit.
The unit should be securely bolted to a suitable surface using
the 7mm diameter boltholes in the stainless steel U shaped
mounting bracket (see figure 1). The angle can then be
adjusted in the direction such that its warning signals can be
both seen. 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.

SAFETY WARNING:

The flashdome guards must not be removed from the
unit at any time.
Chamber Beacon
Section
Flashdome
Guard
Fig 1
7)
Access to the Flameproof Enclosure
In order to connect the electrical supply cables to the unit it is
necessary to remove the cover beacon section to gain
access to the flameproof chamber. To achieve this remove
the four M6 hexagon socket head screws (see figure 2) and
withdraw the cover beacon section taking extreme care not to
damage the flameproof joints in the process.
Note the four M6 screws are Class A4-80 stainless steel
and only screws of this category can be used on these
units. It is therefore important that these screws and their
spring washers are kept in a safe place during installation.
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. Also
check that the earth bonding wire between the two casting
sections is secure and the 'O' ring seal is in place. When
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2466
Issue E
T100ºC Ta < +55ºC
T115ºC Ta < +70ºC
2G/D
-50°C to +70°C
Cover Beacon
Section
S/S Mounting
Bracket
19-03-10
replacing the beacon section casting, ensure that it is square
with the chamber beacon section casting before inserting.
Carefully push the cover beacon section in place allowing
time for the air to be expelled. Only after the cover beacon
section casting 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 beacon section jams while it
is being inserted, carefully remove it and try again. Never use
the cover bolts to force the cover beacon section casting into
position.
In case of repair, contact the manufacturer for information on
the dimensions of the flameproof joints.
4 off Cover Screws

Power Supply Selection

It is important that a suitable power supply is used to run the
unit. The power supply selected must have the necessary
Flashdome
capacity to provide the input current to all of the units
Guard
connected to the system. The beacon sections can both be
wired to the same power supply or to different power supplies
The following table shows the input current taken by each
beacon section of the various units:-
Unit Type
BExCS110-05D
BExCS110-05D
BExCS110-05D
BExCS110-05D
BExCS110-05D
Unit Type
BExCS110-05D
BExCS110-05D
BExCS110-05D
BExCS110-05D
BExCS110-05D
The above table also shows the maximum voltages at which
the units can be operated.
The circuits of each beacon section are the same. The input
current to each beacon section will vary according to the
voltage input level. The current levels shown above are for
nominal input voltage. The 12V, 24V and 48V DC units have
a converter circuit and therefore the input current level will
Sheet 2 of 5
Chamber
Input
Beacon
Voltage
Current
24V DC
300mA
12V DC
750mA
48V DC
1800mA
230V AC
55mA
115V AC
140mA
Cover
Input
Beacon
Voltage
Current
24V DC
300mA
12V DC
750mA
48V DC
1800mA
230V AC
55mA
115V AC
140mA
sales@e-2-s.com
Tel: +44 (0)208 743 8880
www.e-2-s.com
Fax: +44 (0)208 740 4200
External Earth
Terminal
Fig 2
Max.
I/P Volts
30V
15V
58V
253V
126V
Max.
I/P Volts
30V
15V
58V
253V
126V

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