Opus Ld series User manual

Class D Loop Amplier - LD Serie

2-channel low loss amplier

EN Installaon and user manual

LD 1.2 / 2.2 / 3.2

| Installaon and user manual | 2

| Installaon and user manual | 3

Table des maères

Manual EN ..........................................................................................................19

1. Introducon.......................................................................................................20

1.1 Purpose ..........................................................................................................20

1.2 Targeted audience.........................................................................................20

1.3 Alert ...............................................................................................................20

1.4 Icons...............................................................................................................20

1.4.1 Icons et notes...............................................................................................20

1.4.2 Aenon, warning and danger incons ........................................................20

1.6 Conversion tables ..........................................................................................21

2. Descripon ........................................................................................................22

2.1 The range.......................................................................................................22

2.2 Contents.........................................................................................................22

2.3 OP-R...............................................................................................................22

2.4 Safety note.....................................................................................................23

3. Controls, connecons and sengs ..................................................................24

3.1 front panel and sengs..................................................................................24

3.2 Connecons ....................................................................................................25

4. racking ...............................................................................................................26

4.1 Venlaon and racking....................................................................................26

4.2 racking .............................................................................................................26

4.2.1 One amplier...............................................................................................26

4.2.2 Two ampliers .............................................................................................26

4.2.3 On a wall ......................................................................................................27

5. Installaon ........................................................................................................28

5.1 Two LD .2 ampliers connecon .....................................................................28

5.2 For the use of a large cover system.................................................................28

5.3 LD .2 and LD .0 ampliers connecon.............................................................29

5.4 For the use of a large cover system.................................................................29

6. Explicaon........................................................................................................30

7. Specicaons ....................................................................................................31

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1. Introducon

1.1 Purpose

The Installaon and Operaon Manual provides

the necessary informaon for installing, congu-

ring and using an LD serie amplier.

1.2 Targeted audience

The Installaon and Operaon Manual is in-

tended for installers and users of LD serie ampli-

er.

1.4 Alerts

This manual discusses four types of alerts.

The type of alert is closely related to the eect

that may occur if the alert is not observed.

These alerts, ranked in ascending order of seve-

rity, are as follows:

• Note

Addional informaon. Generally, the non-

observance of a Note type alert does not result

in any material or bodily injury.

• Aenon

Failure to observe a cauon alert may result in

property damage.

• Warning

Non-compliance with a type alert Warning may

result in serious personal injury and property

damage.

• Danger

Failure to observe a danger alert may result in

death.

1.5 Icons

1.5.1 Icons et notes

Icons used with notes provide addional infor-

maon about the note. See the following

examples:

1.5.2 Aenon, warning and danger icons

The icons used in combinaon with Aenon,

Warning and Danger indicate the type of risk

present. See the following examples:

Note:

General icon of notes

Note:

Symbol referring to the source

indicated informaon.

Aenon, warning, danger:

Electrocuon risk icon.

Aenon, warning, danger:

the general icon of precauonary state-

ments,

Aenon, warning, danger:

Electrostac discharge risk icon.

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1.5 Conversion tables

In this manual, SI units are used to express leng-

ths, masses, temperatures etc.

These can be converted to non-metric units

using the following informaon.

Table 1: lenght units conversion

Table 2: Mass units conversion

Table 3: Pressure units conversion

Table 4: temperature units conversion

25,40 mm = 25,4 mm 1 mm = 1,00000

25,40 mm = 2,54 cm 1 cm = 0,3937 po

30,48 cm = 0,3048 m 1 m = 3,281 pd

1 ml = 1,609 km 1 km = 0,622 ml

1 lb = 0,4536 kg 1 kg = 2,2046 lb

1 psi = 68,95 hPa 1 hPa = 0,0145 psi

Note:

1 hPa = 1 mbar

° F = 9 /5. ( ° C + 32 ° C = 5 /9. ( ° F 32)

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2. Descripon

The proposed inducon loop amplier range

consists mainly of Opus Technologies amplier

developed and manufactured in France, but also

products from the leading brands in the ma-

gnec loop eld such as Contacta and Current

Thinking.

With our know-how and in-house development

we bring to our customers the most complete

range of the French market.

2.1 the range

The new LD 1.2, 2.2 and 3.2 of the Opus Tech-

nologies range are next-generaon, French-

made magnec loop ampliers. The ampliers,

robust, are the most compact on the market

while oering the necessary features (AGL,

MLC, compressor, ... etc) to ensure installaon

of a room ranging from 250m² to 1000m²:

 LD 1.2 covers 300 to 600 m²

 LD 2.2 covers 525 to 1200 m²

 LD 3.2 covers 1000 to 2000 m²

2.2 Content

Package Content:

 LD 1.2, 2.2 or 3.2 amplier

 Power cord

 2x 3-points connectors

 2x 2-points connectors

 1x 2-points connectors

 A set of sckers « space adapted for the

hearing impaired »

 A Installaon and use guide

 1x jack 6.35 Stéréo

 OP-R (oponnal)

2.3 OP-R (oponnal)

OP-R content:

 2x rack mounng brackets

 2x brackets

 8x xing screws

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2.4 Safety note

The majority of problems with the magnec in-

ducon loop (BIM) happens when the installa-

on has not been properly reected so let's

take a lile me before starng the installaon

and gain in result and me.

Ideally, the loop amplier should be placed near

the area to be covered. This may involve placing

the amplier on a panel, under a desk or under

a table.

The pickup microphone should be as close as

possible to the input of the amplier.

To posion the loop in the space to be

equipped, it is important to take into account

the future users of the system.

For example, if you only need to plan the spea-

ker and the client, a loop around the desk may

be a beer soluon rather than a loop around

the perimeter of the room. It will limit radiaon

and increase condenality.

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3. Commands, Connecons and Sengs

3.1 Front and adjustment

1. «protect »LED, fault synthesis display

2. «Loop » LED, loop presence

3. Current output seng

4. Input 3 seng (100V)

5. Input 2 seng (Line or microphone)

6. Input 1 seng (Line or microphone)

7. ON/OFF push buon

8. «Clip » LED, display saturaon amplier

9. «Power » LED, ON/OFF display

10. Meter input signal

11. Adjustment MLC (Metal Loss Compensaon)

helps reduce the problems of interference to me-

tal structures.

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3.2 connecons

14. Input 1 combo: microphone or line

15. Push buon for line or microphone communica-

on of the input 1

16. Push buon for line or microphone communica-

on of the input 2

17. Phoenix type 2 terminal block input: microphone

or line

18. Phoenix type 3 terminal block input: priority 100V

19. Input 0 ° or 90 °

20. 0 ° or 90 ° output to slave amplier

21. Serial number label

22. Connecng power cords

23. Phantom power selecon switch

24. NO / NC fault synthesis relay

25. Loop input on terminal block Phoenix type

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4. Racking

4.1 Venlaon and racking

Leave a space of 1U (44mm) above the amplier

Leave a space of at least 168 mm between the

boom of the rack and the amplier

4.2 Rack integraon

4.2.1 Integraon of a rack amplier

Opon required: OP-R mounng kit

Secure the rack mounng brackets as shown to

the right using the mounng screws provided in

the kit.

Then integrate the amplier into the bay.

4.2.2 Integraon of two rack ampliers

Opon required: OP-R mounng kit

Secure the rack mounng brackets as shown to

the right using the mounng screws provided in

the kit.

Then, aach the ampliers to each other using

the brackets.

Finally, integrate the ampliers into the rack.

Aenon, averssement, danger:

LD1 / 2 / 3.2 ampliers contain an ad-

vanced protecon circuit, which allows

them to reduce the power output to

maintain safe operang temperatures. Insucient

venlaon may cause the amplier output power to

be reduced during normal operaon (indicated by

the red LIMITER / PROTECT LEDs lighng up). To re-

duce the risk of thermal limitaon and allow proper

heat dissipaon, it is recommended to keep clear

the space directly above and behind these ampli-

ers.

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4.2.3 Integrang an amplier on a wall

Opon required: OP-R mounng kit

Fasten the brackets as shown in the picture

using the screws provided in the kit.

Then, aach the amplier to the desired wall.

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5. Installaon

5.1 Two ampliers LD .2 connecon

Necessary material :

6.35 Stereo Jack Cable

5.2 For the use of a large coverage system

1. Connect the loop on the terminals provided for this purpose: Loop terminal block of the amplier

2. Insert an audio source at input 1 or 2 of the master amplier.

3. Connect the master amplier to the slave amplier using the connecng cord.

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5.3 LD .2 and LD .0 ampliers connecon

Necessary material :

6.35 Stereo Jack Cable

5.2 For the use of a large coverage system

1. Connect the loop on the terminals provided for this purpose: Loop terminal block of the amplier

2. Insert an audio source at input 1 or 2 of the master amplier.

3. Connect the master amplier to the slave amplier using the connecng cord.

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6. Explication

Holding and terminang the wire forming the

loop are connected to an audio amplier. The

hearing aid has a coil oen called "T" or "T-coil"

which is placed inside the prosthesis and con-

sists of a wire forming turns. The magnec eld

generated by the large loop will cross the small

loops in the prosthesis and, by the inducon

process, the electrical signal present in the large

loop will be found in small. The signal of the au-

dio amplier is transmied to the prosthesis,

which will then restore it to the ear of the hea-

ring-impaired.

The loop can be installed at oor or ceiling level,

more precisely between 1.10m and 2.20m from

the listening height (ears).

The presence of an auditory loop is oen indi-

cated by a blue logo represenng a crossed out

ear and a leer T. Generally, a hearing aid has

two major posions, the M and the T. The posi-

on M makes it possible to perceive the sound

thanks to sound pressure as a microphone,

while the posion T (T for telephone) directly

receives the audio signals transmied by induc-

on via the integrated coil. Some prostheses

combine these two modes of operaon with the

MT

posion. It allows the hearing impaired to per-

ceive both ambient noise and inducvely trans-

mied signals.

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7. Spécicaons

LD1.0 LD2.0 LD3.0

Coverage 250 m² (10x25 m²) 450 m² (15x30 m²) 1000 m² (20x45 m²)

Inputs

Audio input 3 inputs: x2 Ligne/microphone

- x1 100V 3 inputs: x2 Ligne/microphone

- x1 100V

Type Phoenix and/or Combo Neutrik Phoenix and/or Combo Neutrik Phoenix and/or Combo Neutrik

Power supply 12V 2mA 12V 2mA 12V 2mA

Sensivity -50dB micro, +40dB 100V, -10dB

ligne -50dB micro, +40dB 100V, -10dB

ligne

EntSlave input -- 6.35mm prise jack. 2nd LD2.0 6.35mm prise jack. 2nd LD3.0

Priority 100V input 100V input 100V input

Power supply

Type integrated Integrated integrated

voltage 230V (oponnal 120V) 50/60 Hz 230V (oponnal 120V) 50/60 Hz 230V (oponnal 120V) 50/60 Hz

power 300VA 300VA 300VA

Consumpon 6W 6W 6W

AUDIO CHARASTERICTICS

Metal loss 0 to 3 dB by octave 0 to 3 dB par octave 0 to 3 dB par octave

Automac Gain Control AGC opmized for speech

Dynamic > 36 dB AGC opmized for speech

Dynamic > 36 dB

Bandwidth 80Hz to 9.5kHz 80Hz to 9.5kHz 80Hz to 9.5kHz

Phase change XPhase module (90° ou 0°) Phase module (90° ou 0°)

Output

Loop impedance 0.5 Ω à 3 Ω0.5 Ω à 3 Ω0.5 Ω à 3 Ω

Output voltage 35V rms (50V pK) 35V rms (50V pK) 35V rms (50V pK)

Peak current 8A pK 11A pK 15A pK

RMS current 5A rms 7A rms 10A rms

ADDITIONNAL FUNCTIONS

Defaults « protect » LED display « protect » LED display « protect » LED display

Véricaon (synthesis lack) DC current too hight—open

loop—thermal protecon DC current too hight—open

loop—thermal protecon

Relay NO / NC default relay NO / NC default relay NO / NC default relay

DIMENSIONS (MM)

HxLxD 42 x 200 x 215 mm 42 x 200 x 215 mm 42 x 200 x 215 mm

Weight 1,2 Kg 1,2 Kg 1,3 Kg

LD1.2 LD2.2 LD3.2

Coverage max: single loop 600 m² (15x40 m²) 1200 m² (20x60 m²) 2000 m² (25x80 m²)

Coverage max : Mulloop 300 m² (10x30 m²) 525 m² (15x35 m²) 1000 m² (20x50m²)

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Cable secon table

Maximum length (m) / cable size (mm²)

Amplier 11,5 2,5 4OP-RC

LD1.0 70 80 90 100 90

LD2.0 90 105 120 140 140

LD3.0 90 105 140 160 140

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Notes:

___________________________________________________________________

Date: 2017/11

| manuel d’installaon et d’ulisaon | installaon and user manual | LD 1.2/ 2.2/ 3.2

For any quesons, contact us.

OPUS TECHNOLOGIES — ZI LAGRANGE II — 9 Chemin de la Vieille Ferme — 33650 MARTILLAC

Tel: 09.81.24.00.06. — Fax: 09.82.63.22.56. — contact@opus-technologies.fr

Opus LD Series User manual

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