FHF Exploline dRGH21 Manual - Página 3

Procurar online ou descarregar pdf Manual para Sistema de segurança FHF Exploline dRGH21. FHF Exploline dRGH21 8 páginas. Signalling hooter

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Application

The

signalling

hooter

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

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-

Technical specification

Enclosure

Colour of enclosure

Insulation class

Protection category

Cable diameter

Cable glands

Explosion category

Operating temperature

Storage temperature

Operating mode

Operating utilization position

Operating conditions

Connecting terminals

Sound pressure level

EC-type-examination certificate

Dimensions

Weight

sary. Furthermore the construction

dGH21

is low-weight and highly robust.

All d.c. versions are equipped

with an electronic contact breaker

which

considerably

service life compared with other

commercially available devices.

category

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-

Fiberglass reinforced polyester

black or red

II (no equipotential bonding necessary).

IP66 (acc. IEC 529/EN60529)

Ø 5.5 to 13.0 mm

1x M20 x 1.5 and vent plugs M20 x 1.5

optionally 2x cable entry M20 x 1.5 for design dRGH21

II 2 G Ex de IIC T5 / T6

-20°C to +75°C (T5) / -20°C to +70°C (T6)

-20°C to +80°C

Continuous operation as per IEC34; DIN EN 60034-1; VDE 0530 Level S1

As required via rotatable bracket mounting

Sound outlet preferably to the front or downwards

Inside or outside

1.5 mm

stranded wire / 2.5 mm

approx. 105 dB(A) at 1 meter distance

PTB 01 ATEX 1063

Approx. 210 x 190 x 190 mm

Approx. 5.5 kg

tions regarding connection to the

mains must also be observed.

Mains connection at terminals 1

and 4. Connection to other devices

increases

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

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

solid wire

carried

out

using