E2S BE DCS110-L1D Series Instruction Manual page 2

Area Classification Dust:
Zone 21 Explosive dust air mixture likely to occur in
normal operation.
Zone 22 Explosive dust air mixture not likely to occur,
and if it does, it will only exist for a short time.
IP Rating: IP67
Equipment Category:
Ambient Temperature Range:
5)
Location and Mounting
The location of the unit should be made with due regard to
the area over which both the sounder 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 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 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.
Plastic Acoustic Horn
(Anti-static Plastic)
Fig 1
6)
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
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
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2469-P
T100ºC Ta < +55ºC
T115ºC Ta < +70ºC
2G/D
-50°C to +70°C
Sounder Beacon
Section Section
Flashdome
Guard
S/S Mounting
Bracket
Issue C 23-04-10
sections is secure and the 'O' ring seal is in place. When
replacing the beacon section casting, ensure that it is square
with the sounder 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.
4 off Cover Screws
7)
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
capacity to provide the input current to all of the units
connected to the system. The sounder and LED 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 the
sounder section and beacon section of the various units:-
Unit Type Input
Voltage
BExDCS110-L1D 24V DC
BExDCS110-L1D 12V DC
BExDCS110-L1D 48V DC
BExDCS110-L1D 230V AC
BExDCS110-L1D 115V AC
Unit Type Input
Voltage
BExDCS110-L1D 24V DC
BExDCS110-L1D 12V DC
BExDCS110-L1D 48V DC
BExDCS110-L1D 230V AC
BExDCS110-L1D 115V AC
The above table also shows the maximum voltages at which
the units can be operated.
Sounder Section
The input current to the sounder section will vary according to
the voltage input level and the frequency of the tone selected.
The current levels shown above are for the 440Hz
Continuous tone @ nominal input voltage. The 24V and 48V
DC units and the 230V AC, 115V AC units have a switching
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External Earth
Terminal
Fig 2
Sounder Max.
Current I/P Volts
265mA 30V
195mA 15V
130mA 50V
56mA 253V
110mA 126V
LED Beacon Max.
Current I/P Volts
400mA 30V
760mA 15V
130mA 50V
65mA 253V
135mA 126V
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