E2S BExCL15-05D Instruction Manual - page 2
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European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH sales@e-2-s.com Tel: +44 (0)208 743 8880
www.e-2-s.com Fax: +44 (0)208 740 4200
Document No. IS 2442-P Issue E 23-04-10
Sheet 2 of 5
6)
Location and Mounting
The location of the unit should be made with due regard to
the area over which both the loudspeaker and beacon
warning signal must be audible and 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 bolt holes in the stainless steel U shaped
mounting bracket (see figure 1). The angle can then be
adjusted in the direction such that its warning signal can be
both heard and 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. move in service.
7)
Safety Warning (Electrostatic Hazard)
The acoustic horn section is made of ABS Plastic, therefore
to avoid a possible ELECTROSTACTIC CHARGE the unit
must only be cleaned with a damp cloth.
8)
Access to the Flameproof Enclosure
In order to connect the electrical supply cables to the unit it is
necessary to remove the 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
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
sounders. 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
replacing the beacon section casting, ensure that it is square
with the loudspeaker section chamber casting before
inserting. Carefully push the beacon section in place allowing
time for the air to be expelled. Only after the 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 beacon section jams while it is being
inserted, carefully remove it and try again. Never use the
cover bolts to force the beacon section casting into position.
In case of repair, contact the manufacturer for information on
the dimensions of the flameproof joints.
9)
Power Amplifier Selection
It is important that the loudspeaker section is connected to a
power amplifier that has outputs that are compatible to the
type of loudspeaker being used. Loudspeakers with a 100V
Line matching transformer fitted must be connected to a
power amplifier with a 100V line output. Low impedance 8
ohm or 16 ohm loudspeakers must be connected to
amplifiers with a suitable low impedance output. When
selecting the cable size consideration must be given to the
current that each unit draws, the number of loudspeakers on
the line and the length of the cable runs.
The following table shows the range of loudspeakers:-
Unit Type
Input
Wattage
Max.
I/P
Volts
BExCL15-05D
100V Line
15W
100V
BExCL15-05D
8 ohm
15W
10.95V
BExCL15-05D
16 ohm
15W
15.49V
The above table also shows the maximum AC signal voltages
at which the loudspeakers can be operated.
The current levels taken by the each loudspeaker will depend
on which output tapping has been selected (see section 14 of
this instruction manual). The 100V Line units have output
levels of 15W, 7.5W, 3W and 1W.
10)
Beacon Power Supply Selection
It is important that a suitable power supply is used to run the
beacon units The power supply selected must have the
necessary capacity to provide the input current to all of the
beacon units connected to the system.
The following table shows the input current taken by the
beacon section of the various units:-
S/S Mounting
Bracket
Sounder
Section
Flashdome
Guard
Plastic Acoustic Horn
Please see Safety Warning
In Section 7 of this manual
Fig 1
Beacon
Section
4 off Cover Screws
External Earth
Terminal
Fig 2