User manual | LA-90 Induction loop kit BA-200 Portable induction loop systems

LA-90
Induction loop kit
BA-200
Portable induction
loop systems
LA-90
Order No.: A-4209-0
The »LA-90« is a compact, portable
induction loop system for appli-
Induction loop system kit
Order No.: A-4271-0
The induction loop system kit
BA-200: Induction loop
amplifier for coaches
Order No.: A-4225-0
contains a complete, portable in-
The BA-200 induction loop amplifier
duction loop system designed for
is designed to provide inductive
rooms up to 140 m² in size. The set
audio signals in coaches. The am-
includes the PROLOOP C induction
plifier is equipped with settings for
loop amplifier (see p. 10) as well as
basic volume and tone and uses
Positioned amidst the people
two cable reels with 25 metres of
Automatic Gain Control to effec-
speaking to each other, the »LA-90«
loop wire each and the PROLOOP
tively support volume stabilisation
uses an integrated microphone to
FSM measuring instrument incl.
for fluctuating input levels. Digital
pick up the sound and transmits the
DIR under-the-chin receiver (see p.
control makes it possible to select
corresponding inductive signals via
15). The system is easy to use and
one of the two audio sources con-
the integrated loop.
ready to go »in a flash« – ideal for
nected at the same time, e.g. a mi-
temporary installations.
crophone and a music system. Two
cations over short distances, for
example at reception desks, at
information counters or in sales
areas.
An optionally available microphone
mounting brackets come included
can be connected via the additional
with the system.
microphone jack (e.g. table microphone on page 15 or EH1205, see
right hand page)
Power can be provided by the power supply included with the system
or by the integrated rechargeable
battery.
Technical data
Dimensions (HxWxD): 200 x 185 x 70
Weight: 635 g (incl. rechargeable
batteries)
Microphone sensitivity: up to 60 dB
Prim. power supply: 100-240V 50-60 Hz
Secondary: 16 V DC or via integrated
12 V 1300 mAH rechargeable battery
Output power: max. 10 W
8
Technical data
Power supply: 220 - 240 V
Weight: 11 kg
Colour: Silver
Dimensions (HxWxD): 210 x 610 x 360 mm
Power cord: 2 m
Features
Max. power: 60 A
Max. voltage: 31 V
Frequency range: 100 - 5000 Hz ( ± 3 dB)
Distortion: < 1%
Technical data
Dimensions (HxWxD): 42 x 180 x 140 mm
Weight: 905 g
Colour: Silver-metallic
Power supply: 12 – 24 V DC
Power cord: 2 m
LA-60
LA-215
Induction loop pads
LA-60
Order No.: A-4213-0
The LA-60 induction loop amplifier is designed for use in small rooms up to
16 m2 or for partial signal coverage, at information counters, for example.
It is equipped with two line/mic input jacks, which can be selected and
activated by flipping a switch. The control switch is used to individually
adjust the volume. Control lamps help in the operation of the system by
indicating the corresponding status signals.
Technical data
Power supply:
180 – 265 V AC
50/60 Hz 10 VA
Dimensions (HxWxD): 65 x 121 x 35 mm
Weight: 146 g
Output power of the induction loop system
1.3 A RMS, 1.82 A surge output current
100 - 5 kHz – compliant with the BS6083 pt4 (IECI 18-4) standard for a loop,
with 24 / 0.2 cable (0.75 mm²) at 0.03 ohms/m
LA-215
Order No.: A-4223-0
The LA-215 is able to supply living
quarters or small conference rooms
up to approx. 50 m² in size with
inductive audio signals via the loop
connected. The system includes a
37-m long induction loop wire. In
and tone, the digitally controlled
induction loop amplifier uses Automatic Gain Control to stabilise the
volume for fluctuating input levels.
The device is able to accommodate
the connection of two audio sources.
at the touch of a button.
The »pad« contains a small loop. It is connected directly to the LA-215 or
LA-60 induction loop amplifier and placed under the seat cushion or behind
result, the signal coverage can be restricted to a very small area.
Small »Cross-the-counter« induction loop
Order No.: A-4917-0
The small »Cross-the-counter« induction loop has been designed to supply
induction loop signals to small areas, such as individual service points
or reception desks. The system is installed – generally underneath the
table top – using adhesive clamps with a space requirement of approx.
35 x 35 cm; recommended induction loop amplifier: LA-60 or LA-215.
»EH1205« replacement
microphone for LA-215 and LA-90
Bestell-Nr.: EH1205-0
Order No.: A-4910-0
the back of a chair. The connection cord for the pad is 4.50 m long. As a
Induction loop
amplifiers and
components for
small to mediumsized rooms
addition to settings for basic volume
The desired source can be selected
Induction loop pad for the LA-60 or the LA-215
Cross-the-counter
Technical data
2x mic jacks
2x line in jacks
2.85A RMS, 4A max. output power
Dimensions (HxWxD): 42 x 180 x 140 mm
Weight: 905 g
Colour: Silver-metallic
Power supply: 230 V AC 50 Hz 20 VA
Power cord: 2 m
What’s included
LA-215 with power cord
1x mic with 4 m of cable
37 m of single-wire strand 0.75 mm² and
Cable clips
Scart- / Cinch-cable
Directly connected to the induction loop
amplifier, the microphone (included with
the LA-215) provides a speaker with ample
freedom of movement in close dialog with
four meters of cable and a clip. It can also
be ordered separately as a replacement
microphone or a second microphone to be
connected to the second microphone jack.
LA-220
Order No.: A-4226-0
Use and equipment delivered is identical to the LA215, except it also includes
an external power supply
9
PROLOOP C
Induction loop
amplifier
High output current:
11 A RMS
PROLOOP C
Order No.: A-4246-0
Short-circuit-proof
Automatic fuse reset
The PROLOOP amplifier family is
Two symmetrical
designed for professional use in
XLR input jacks
medium-sized rooms (up to 170 m²)
One RCA input jack
in private buildings and public
One line output jack
facilities, in which particularly high
Extra-sturdy jacks
Dual action AGC
for excellent speech
recognition
High availability,
operating reliability and
quality assurance
Convenient monitoring of
the magnetic field: Can
be done using headphones or speakers
Treble control to compensate for treble losses
due to reinforcement
dependability and extremely reliable
operation are required.
Thanks to a 100-percent shortcircuit-proof amplifier, switchable,
symmetrical XLR input jacks and
extremely stable output performance, the PROLOOP C is able to
meet these demands.
Automatic Gain Control (AGC)
guarantees consistent field strength
and reproduces stable sound with a
special emphasis on clear speech,
even under acoustically demanding
conditions.
Corresponding test equipment
can be used to evaluate the sound
quality via the integrated monitor
out jack.
10
Technical data for the PROLOOP C
Mains connection: 230-240 V AC 50 Hz, 7-200 W, 10 A fuse
Coverage: 170 m² acc. to IEC 60118-4, single-loop, free field
Induction loop output
Max. current: 60 A from peak to peak, 1-5 ms, 1 kHz, 11 A RMS,
continuous 1 kHz, short-circuit-proof
Max. voltage: 31 V from peak to peak
Output AGC: Sets voltage and power for steady signals like oscillation
and sine curves after 0.6-1 seconds to -10 dB. Short pulses and
normal program signals are not limited.
Frequency response: 100 - 5000 Hz ( ± 3 dB)
Distortion: < 1%
Cable connection: Screw connection on rear panel of the amplifier
Outputs
1. LINE OUT: 0 dBm-RCA out (with AGC function)
Inputs
IN 1 und 2: 0.5 mV-100 mV / 10 kOhm (mic.) alt. 25 mV - 4 V/ 10 kOhm (line)
AGC, switchable phantom voltage, XLR connections
IN 3: 50 mV-10 V / 10 kOhm, RCA connection
AGC
Dynamics: > 70 dB
Rise time: 2 - 500 ms
Fall time: 0.5 - 20 dB/s
Controls and displays
Treble control: 0 - +9 dB, potentiometer
Induction loop
adjustment: 0 - 170 m², potentiometer
Displays: Mains connection: 1 green LED
Input level: 1 green LED
Induction loop power: 1 green LED
Induction loop monitoring
6.3 mm jack for headphone connection
Enclosure
Dimensions: 64 x 295 x 205 mm (H x W x D)
Weight: 3.6 kg
Colour: black
PROLOOP DCC Induction loop
amplifier
Technical data for the PROLOOP DCC
Mains connection: 230-240 V AC, 50 Hz, 25-700 W, 10 A fuse
Coverage:
800 m² acc. to IEC 60118-4, single-loop
Induction loop output
Max. power:
78 A / 0.06 ohms 25 A RMS, 10-300 ms 1 kHz,
short-circuit-proof
Max. voltage:
47 V from peak to peak
Output AGC: sets voltage and power for steady signals like oscillation
and sine curves,after 0.6 - 1 seconds to -10 dB. Short
pulses and normal program signals are not limited.
Frequency range:
100 - 5000 Hz (±3 dB)
Distortion:
<1%
Cable connection:
Screw connection on rear panel of the amplifier
Outputs
1. LINE OUT: 0 dBm-RCA (with AGC function)
Inputs
IN 1, 2 und 3: XLR connections (0,5 - 100 mV) microphone / (25 mV - 4 V) Line,
sensitivity, phantom voltage,
balanced/unbalanced and priority can be adjusted
separately for each input.
AGC
Dynamics: >70 dB
Rise time: 2 - 500 ms
Fall time: 0.5 - 20 dB/s
Controls and displays
Treble control: 0 - +9 dB (potentiometer)
Induction loop adjustment:0 - 800 m² (potentiometer)
Displays:
Mains connection: 1 green LED
Input level: 3 green LEDs
Induction loop power:5 red LEDs
Induction loop monitoring
6.3 mm jack for headphone connection
Enclosure
Dimensions: 90 x 439 x 295 mm (H x W x D)
Weight: 9.5 kg
Colour: black
PROLOOP DCC
Order No.: A-4263-0
High output current:
25 A RMS
Short-circuit-proof
Designed for rooms up to 800 m² in
Automatic fuse reset
size, the PROLOOP DCC induction
Three symmetrical
XLR inputs
loop amplifier is an ideal solution
for event venues and larger assembly halls.
Short-circuit-proof amplifiers with
switchable, symmetrical XLR inputs
and strong output performance
(up to 25 A RMS) guarantee that
the induction loop system remains
highly available.
Automatic Gain Control (AGC)
creates consistent field strength to
produce stable tone with outstanding
speech reproduction – even under
difficult acoustic conditions. The
integrated monitor output and the
corresponding measurement tech-
Sensitivity, phantom
voltage, balanced/
unbalanced and priority
can be separated
adjusted for each input
High availability, operating
reliability and quality
assurance
Convenient monitoring of
the magnetic field: Can
be done using headphones
or speakers
Treble control to
compensate for treble
losses due to reinforcement
LED display for mains
connection, input level
and induction loop
current
19” rack design
nology make it possible to test the
quality of the induction loop system
easily and conveniently.
11
Standard induction loop systems
An LOS system consists of two
HUMANTECHNIK service for
produce a magnetic field that
induction loop amplifiers that are
planning low-overspill systems
usually exceeds the »core service
operated out of phase. This con-
area«. This »overspill«, which travels
figuration prevents overspill and
horizontally and vertically, might
makes it possible to operate several
still be audible three to four loop
induction loop systems in adjacent
widths away. This limits the use of
rooms without having their signals
this technology.
interfere with each other:
Low-overspill systems
expand the application options
Low-overspill systems
(LOS): Induction loop
systems with low
overspill
of induction loop systems.
Low-overspill systems (LOS) considerably reduce »overspill«. They
use special loop patterns to reduce
the signal strength outside the loop.
For these patterns, two loops have
to be operated out of phase with
each other to achieve an equal
distribution of the desired signal
without creating any undesirable
signal-free areas.
No field strength reduction in
the centre of the loop due to
reinforced concrete,
Greater reproducibility of the
results,
Reduced danger of feedback
due to lower power consumption,
Each individually optimal customisation and configuration depends
on the conditions prevailing in the
area of application, in other words,
on the room floor plans and the
sizes of the coverage areas, the
number of internal loops and the
demands made on low overspill.
Determining the corresponding
values for the »customised« lowoverspill layout and the optimal
level adjustments in each case is
based on a complex method of
calculation and installation. That’s
Extremely low overspill at re-
why we strongly recommend
duced directional sensitivity.
that you take advantage of the
ser­v ices offered by HUMANTECHNIK. We provide competent
support to architects, technicians
and installers in planning LOS
installations.
The overspill
of standard
induction loop systems
works in a horizontal
and vertical direction.
The resulting »eavesdropping effect« is
often still measurable
over distances of up
to three induction loop
widths.
Low-overspill systems
(LOS) that are competently customized and
configured reduce overspill considerably to allow
the operation of induction
loop systems in directly
adjacent rooms.
12
PROLOOP LOS
Technical data
Mains connection: 230 – 240 V AC, 50Hz, 25 – 700 W
Coverage: 300 m² acc. to IEC 60118-4
Induction loop output
Max. power: 60 A from peak to peak, 1-5ms, 1 kHz, 2 x 13 A RMS,
continuous 1 kHz, short-circuit-proof
Max. voltage:
47 V from peak to peak
Output AGC: Sets voltage and power for steady signals like
oscillation and sine curves after 0.6-1 seconds
to -10 dB. Short pulses and normal program signals
are not limited.
Frequency range: 100 – 5000 Hz (±3 dB)
Distortion: <1%
Cable connection: 2 screw connections on rear panel of the amplifier
Outputs
Master OUT: 0 dBm, RCA (with AGC function)
Slave OUT: 0 dBm, RCA (with AGC function)
Inputs
IN 1: Combined XLR / 6.35 mm connector
MIC sensitivity 2.5 mV – 10V RMS / 10 kOhm,
LINE sensitivity 37 mV – 10V RMS / 10 kOhm
or phantom voltage 9 – 20 V
IN 2: Dual RCA connections, 45 mV – 10V RMS / 10kOhm
IN 3: Dual RCA connections, 45 mV – 10V RMS / 10kOhm
AGC
Dynamics: > 70 dB
Rise time: 2 – 500 ms
Fall time: 0.5 – 20 dB/s
Rise and fall times depend on the currently active channel
Controls and displays
Loop setting: 0 – 300m² (with one potentiometer each for
master and slave outputs)
Input level: IN 1 and IN 2 can be adjusted separately
Displays:
Mains connection:
1 green LED
Input level: 1 green LED
Induction loop power: 2 green LED
Induction loop monitoring
Two 6.3 mm jacks for headphone connection
Enclosure
Dimensions: 88 x 438 x 280 mm (H x W x D)
Colour: Black
Weight:
9.3 kg
PROLOOP LOS
Order No.: A-4252-0
The PROLOOP LOS is a complete
system for the operation of lowoverspill systems. It includes the
complete range of electronics required in a single enclosure. Thus,
there is a flexibly sized, reliable
low-overspill solution available to
serve neighbouring event rooms
Induction loop
amplifier system
for low-overspill
installations
Uniform coverage throughout
the room (no dead spots in the
middle of the room)
No signal fluctuations when
hearing-aid user moves
his/her head
Reduced sensitivity
to architecture-related
magnetic fields
and assembly halls up to 300
High efficiency, low power
consumption
square metres in size.
19“ design
The system is equipped with Automatic Gain Control (AGC) to produce
stable sound with outstanding
speech reproduction, even under difficult acoustic conditions.
Well suited for retrofitted
installation in theatres,
cinemas, concert halls,
schools, conference rooms,
housing, etc.
(Possible for floor
reconstructions only)
The integrated monitor output for
the corresponding measurement
technology makes it possible to
easily and conveniently test the
sound quality of the induction loop
system.
13

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