Technical data

12
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y and explosion-proof stations
y and explosion-proof stations
Technical data: LBB 7089/50 LBB 7089/52
Dimensions (wxhxd) in mm/inch: 340x340x150/13.39x13.39x5.91 170x340x190/6.69x13.39x7.48
Weight, net, in kg/lb: 10.1/22.2 6.4/14.1
Environmental conditions, category: T5 T5
Classification EExed[ib]IIC T6 EExed[ib]IIC T6
IP code: 66 66
Supply voltage :
Line, idle 10 V d.c. 10 V d.c.
Line, in operation 18-25 V d.c. 18-25 V d.c.
Power line 18-36 V d.c. 18-36 V d.c.
Current consumption
Line, idle <0.3 mA <0.3 mA
Line, in operation 25 - 38 mA 25 - 38 mA
Power line 500 mA max. 500 mA max.
Output power (continuous/peak): 3.5 W/ 3.5 W/
Cabling:
Extension line/Power line 2-wire/2-wire 2-wire/2-wire
Classification Explanation
EEx Explosion-proof apparatus
e Increased safety
d Flame-proof enclosures
[ib] Safety barrier
II For use in places that are susceptible to fire/steam
other than mines
C Gas group (Acetylene/Hydrogen)
T6 Maximum surface temperature = 85
o
C
The station is housed in a splash-proof
dark grey cabinet for wall mounting.
The cabinet is made of glass fibre re-
inforced, self-extinguishing polyester
resin. All electronics are installed in an
inner flame-proof box.
The station operates in duplex with a
built-in microphone and amplifier for
high output to a flame-proof loud-
speaker horn. The keyboard has large
keys for ease of operation.
Controls for simplex mode and system
functions are identical to all other
M100 S stations.
Privacy and external volume controls are
not available.
LBB 7089/52
Explosion-proof dual call
station IIC
The station is housed in a double hous-
ing for wall mounting and consists of a
flame-proof box for the electronics and a
splash-proof dark grey polyester box for
the keyboard and cabling.
The keyboard/cabling box is made of
glassfibre reinforced, self-extinguishing
polyester resin.
The station has access to 2 pre-defined
locations.
LBB 7071/10
Flame-proof loudspeaker
horn, 8 W/8 ohm
The heavy duty flame-proof loudspeaker
horn specially designed for use in areas
where gasses or other explosives dictate
special precautions. Suitable for use with
explosion-proof master stations.
The loudspeaker is completely weather-
proof, is resistant to salt-laden air and
unaffected by most chemicals. Made in
cast silumin with grey epoxy finish.
Technical data
Nominal impedance: 8 ohm
Rated power: 8 W
Frequency range: 500-6000 Hz
Protection: IP 67
Dimensions,
front and depth: 124 x 110 mm
4.88 x 4.33 in
Net weight: 1.5 kg, 3.3 lb
LBB 7089/50
Explosion-proof master
station IIC