Safety Warning - Pfannenberg BExBG05D - ATEX Montageanleitung

IP Rating: IP67
Equipment Category:
Ambient Temperature Range:
-50°C to +70°C
6)
Beacon 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.
The beacons 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 required angle
can be achieved by loosening the two large bracket screws in
the side of the unit, which allow adjustment of the beacon 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 guard must not be removed from the unit
at any time.
Flameproof
Flashdome
Chamber
Guard
Figure 1
7)
Access to the Flameproof Enclosure
In order to connect the electrical supply cables to the beacon
it is necessary to remove the flameproof cover to gain access
to the flameproof chamber. To achieve this remove the four
M6 hexagon socket head screws (see figure 2) and withdraw
the flameproof cover 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 the
beacons. It is therefore important that these screws and their
spring washers are kept in a safe place during installation.
Pfannenberg GmbH · Werner Witt-Straße 1 · D-21035 Hamburg · Tel.: 040/7 34 12-0 · Telefax: 040/ 734 12-345
technical.support@pfannenberg.com · http://www.pfannenberg.com
PDG-Doc-No.: 30017-015-1b
T115ºC Ta < +70ºC
T100ºC Ta < +55ºC
T85ºC Ta < +40ºC
2G/D
(T5 = +55°C)
(T6 = +40°C)
Flameproof
Cover
S/S Bracket
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 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.
8)
Power Supply Selection
It is important that a suitable power supply is used to run the
beacons. The power supply selected must have the
necessary capacity to provide the input current to all of the
beacons
The following table shows the input current taken by the
various beacons:-
Unit Type Nominal I/P
Voltage
BExBG05D 12V DC
BExBG05D 24V DC
BExBG05D 48V DC
BExBG05D 230V AC
BExBG05D 115V AC
The input current 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 decrease slightly as the
input voltage in increased and will increase slightly as the
input voltage is reduced.
The above table also shows the maximum voltages at which
the beacons can be operated.
9)
Cable Selection
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.
SAFETY WARNING: If the BExBG05D beacons are used at
high ambient temperatures, i.e. over +40ºC, then the cable
entry temperature may exceed +70ºC and therefore suitable
E 2 / 3
4 off M6 Cover Screws
External Earth
Terminal
Figure 2
Input Max.
Current I/P Volts
750mA 15V
300mA 30V
180mA 58V
55mA 253V
140mA 126V
10/2009