FHF Exploline dGH21, Руководство пользователя

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Application
The signalling hooter dGH21
was developed for warning, calling
and indicating purposes in areas
with
explosive atmospheres in
group II and for rough ambient
conditions. Thanks to its compliance
with
the explosion category
II 2 G Ex de IIC T5 / T6, this signal-
ling device can be used in areas
with explosive atmospheres in zone 1
and 2. The signalling hooter pro-
duces a sound volume of approx.
105 dB(A) at 1 meter distance.
The characteristic hooting sound
can be clearly heard above any
other higher-frequency sounds in
the area. The signalling hooter is
available in most of the common
voltages. The dRGH21 comprises a
telephone calling relay and repro-
duces the signals in the pulse rate
of the overriding telephone call.
Design
The explosion protection is given
through the flameproof chamber
and the chamber „increased safety“.
The flameproof chamber contains
the electromagnetic drive system
and, for the dRGH21, an additional
telephone calling relay. The signal
membrane is mounted outside of
the flameproof room beneath a clo-
sing cap with the appropriate sound
control. The enclosure is made
completely of plastic thus guarante-
eing protection from corrosion and
insulation class II.
Equipotential bonding is not neces-
sary. Furthermore the construction
is low-weight and highly robust.
All
d.c. versions are equipped
with an electronic contact breaker
which
considerably increases
service life compared with other
commercially available devices.
Recycling
The device can be disposed of
completely
as electronic waste.
When the device is disassembled,
plastics,
metals and electronics
are to be disposed of separately.
Assembly
The signalling hooter is suitable for
either wall or ceiling mounting.
Please refer to Page 5 for mounting
dimensions. All fixing elements and
bases must bear the weight of the
device (approx. 5.5 kg). The wall
fixtures are part of the scope of
delivery, (including assembly material)
according to Figure 1 on page 5.
Make sure the catches of the safety
plate fit in the openings in the wall
bracket.
Connecting and adjusting
The device may only be connected
and adjusted by qualified personnel.
The regulations and instructions of
the respective country regarding
connection to the public telephone
network and/or to private branch
exchanges (PBX) have to be consi-
dered. The following regulations
concerning connection and adjust-
ment are to be observed. Regula-
tions regarding connection to the
mains must also be observed.
Mains connection at terminals 1
and 4. Connection to other devices
at terminals 2 and 3 (see Fig. 2 on
page 5). When using the telephone
calling relay connect mains to termi-
nals 1 and 2 and the telephone
connection to terminals 3 and 4
(see Fig. 3 on page 5).
Use only suited tools for installing the
cable glands. The cable connection
is suited only for permanent cables.
Remarks
The device may only be connected
and placed into operation by a qua-
lified person. This also applies to
any
repairs carried out using
original parts. The use of other spare
parts can lead to material damage
and injury to persons.
N.B. Each signalling horn is ad-
justed in the factory. Should the
sound alter after a certain number
of
operating hours, a qualified
person can adjust the tappet in the
device as follows (see the remarks
on adjustment on page 5):
• Open the device
WARNING: live parts
• Apply rated voltage
• Adjust item 1 approx. 35 cm
distance
• Release item 3
• Turn item 2 until sound is loud
and clear (no rattling)
• Tighten item 3 again
• Close device
3
Technical specification
Enclosure Fiberglass reinforced polyester
Colour of enclosure black or red
Insulation class II (no equipotential bonding necessary).
Protection category IP66 (acc. IEC 529/EN60529)
Cable diameter Ø 5.5 to 13.0 mm
Cable glands 1x M20 x 1.5 and vent plugs M20 x 1.5
optionally 2x cable entry M20 x 1.5 for design dRGH21
Explosion category II 2 G Ex de IIC T5 / T6
Operating temperature -20°C to +75°C (T5) / -20°C to +70°C (T6)
Storage temperature -20°C to +80°C
Operating mode Continuous operation as per IEC34; DIN EN 60034-1; VDE 0530 Level S1
Operating utilization position As required via rotatable bracket mounting
Sound outlet preferably to the front or downwards
Operating conditions Inside or outside
Connecting terminals 1.5 mm 2 stranded wire / 2.5 mm 2 solid wire
Sound pressure level approx. 105 dB(A) at 1 meter distance
EC-type-examination certificate PTB 01 ATEX 1063
Dimensions Approx. 210 x 190 x 190 mm
Weight Approx. 5.5 kg