Contacta HLD9, HLD7 User Manual

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Page 1

HLD9

User Guide

October 2016

Hearing Loop Driver

Page 2

Page 3

Contents

Product Overview Components Connections Setting up the Driver

Loop Congurations / Set Up

Troubleshooting

Technical Specication

Warranty Standards

4 4 5-6 7-9 10-13 14-15 16 17 18

Contacta has a policy of continuous product development, therefore small specication changes

may not be reected in this manual. Images, labels, packaging, accessories and product colours

are subject to change without notice.

Page 4

Product Overview

Components

Our HLD9 is a pioneering modular hearing loop driver for perimeter

or phased array congurations, suitable for large area applications

such as theatres, conference facilities, sports arenas, concert halls and

auditoria.

The HLD9 uses cutting edge switching converter technology to deliver

high eicacy and high performance with low noise.

1. User Guide

2. Hearing Loop Stickers x 2

3. Rubber Feet x 4

4. Hearing Loop Driver (HLD)

5. IEC Power Lead

You will also need: loop cable or at copper tape of a length and type, which will be determined by the loop design. The driver requires ancillary equipment for audio feeds, such as a microphone or sound system. Loop test equipment is also required as detailed on page 8.

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1. Power Supply Input. Power Sources - This product should be operated only from the type

of power source indicated on the marking label. If you are not sure of

the type of power supply to your home, consult your product dealer or

local power company. The primary method of isolating the amplier from the mains supply is to disconnect the mains plug. Ensure that the mains plug remains accessible at all times. Unplug the AC power cord from the AC outlet if the unit will not be used for several months or more.

Rear Panel Connections

Connections

*HLD9-ETL rear panel text shown. All connections

are the same on the standard HLD9.

2. External Port - Status Indicator (Volt-free relay contacts).

3. Phantom power indication for microphone.

4. Input 1 (Microphone) - Balanced XLR with switchable 12VDC phantom power or ¼” unbalanced TRS jack for electret microphone with 5VDC power via 680Ω load.

5. Input 2 (Line) - Balanced XLR or ¼” TRS jack to ohmically isolated input.

6. Expansion. CAUTION: For connection to other Contacta systems only.

7. Feature - External monitor & control, Contacta communications processor. CAUTION: This is not a telecommunications port.

8. NL4 Loop Output Connection.

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Audio Connections:

2 1

Mic & Line

XLR connector

1: Screen/Shield 2: + (Signal Hot) 3: - (Signal Cold)

Mic

Unbalanced TRS Jack

Tip

Ring

Sleeve

SOURCE

+ (Signal)

GND

Mic

Unbalanced Mono TS Jack

Tip

Sleeve

SOURCE

+ (Signal)

GND

Line

Unbalanced Mono TS Jack

Tip

Sleeve

SOURCE

+ (Signal) hot

- (Signal) cold

Phantom Power

CAUTION: Route loop output cables as far away as possible from the driver audio input cables.

Connect a twisted pair or quad core loop feeder cables to the supplied NL4 connector (diagram below). Insert into Output Channel A/B sockets on the rear of the driver.

Loop Connections:

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Setting up the Driver

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

Shows MIC level Shows LINE level Shows DRIVE level

Driver Modes: Normal Operation Mode – The driver is fully functional. However, the

controls on the front do not change the driver operation. Adjustment Mode – In this mode one can adjust all of the levels using the + or – buttons.

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

To enter adjustment mode press

both MIC + and - simultaneously

In adjustment mode the STATUS LED will ash

Front Panel Overview:

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

Pressing the MIC + or - will adjust the MIC input gain; adjustments are in 1dB steps. LEDs show the MIC’s level

after fader

Pressing the LINE + or - will adjust the LINE input gain; adjustments are in 1dB steps. LEDs show the LINE level after fader. If input is low the LOW SIG LED

will illuminate

Pressing the Drive + or - will adjust the Drive output by

1dB steps. LEDs show the DRIVE level in approx 0.5A

increments

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Engineers mode – In this mode there are additional items that can be adjusted, such as driver type, phantom power and high frequency compensation.

You must rst be in adjustment mode (see page 7). Then, to enter the engineers mode, simply press both Line + and - simultaneously.

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

Press both Line + and - simultaneously

to enter the Engineers’ mode

PAGE 1 allows you to select the driver operation; either PERIMETER, PRIMARY or SECONDARY. Always select the driver operation mode before installing the driver in its rack mount bracket.

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

PAGE 1 is identied by LED 1 ashing

Pressing the LINE + or - buttons

selects driver operation, Perimeter,

PRIMARY or SECONDARY

When you are ready to move

onto the next PAGE press the DRIVE + button

There are 5 PAGE settings, each identied by a ashing MIC LED: PAGE 1 is LED 1, PAGE 2 is LED 2, etc.

Page 9

• Pressing the MIC (+ and -) buttons simultaneously will take the

driver back to the normal operation mode where the controls are non-functional.

• PERIMETER mode, for a single loop or (with a secondary driver) two widely separated loops.

• PRIMARY mode, the rst and controlling driver of two in a phased array loop layout.

• SECONDARY mode, the second driver of two in a phased array

loop layout.

• When only this rst light is illuminated and the driver is in the engineers mode, press either the LINE + or – to change the driver type from PERIMETER, PRIMARY OR SECONDARY.

• When nished setting up the driver type, press the DRIVE – button to take the driver out of the engineers mode and put if back into the adjustment mode. The status light will begin to ash.

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

Changing the driver type

You must be in engineers mode to change the driver type.

Ensure you have selected PAGE 1.

The three operating modes are:

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Loop Congurations / Set Up

PLEASE NOTE: The loop cable must be connected before powering up the driver. Upon power up the loop is automatically analysed and set up. If no loop is connected the status light will be solid red. To RESET unplug the driver and wait 60 seconds minimum after all lights go out.

Perimeter Loop or Primary Driver Setup*

1. Power up the driver and once the loop analysis (indicated by the

ashing LED sequence) is complete, conrm or select the correct driver type (PERIMETER or PRIMARY). Instructions on changing driver type on page 14.

CAUTION: Once the loop (load) has been analysed it should not be

altered or adjusted

2. Enter the adjustment mode by pressing the MIC (+ and - ) buttons

simultaneously until the red status light ashes.

3. While in adjustment mode (red status light ashing) conrm that

the MIC, LINE and DRIVE levels are set to their minimum level by individually holding in the - button of each for a few seconds.

4. Connect the input signal to the LINE input unless you are directly

connecting a microphone. If testing with our Test Signal Generator (TSG), connect to the HLD9’s LINE input.

5. For either input signal (in adjustment mode) increase the

appropriate input level by pressing the - button until the rst yellow LED illuminates (this will be solid if using a sine wave) or occasionally ash if used on music or speech sources.

6. Bring the DRIVE level up by pressing the DRIVE + button until the

required level is reached.

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

Assumes unit is properly connected and loop has continuity.

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CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

1. Conrm that the driver has been set to the SECONDARY mode

(see page 9). In this mode the driver follows the signal sent from the primary or perimeter loop driver.

2. Connect an RJ45 cable between the expansion jack of the primary/

perimeter driver and the expansion jack on the secondary driver. Note: If connected to a primary driver the driver outputs are 90 degrees out of phase (for a phased array).

3. Nothing should be connected to the LINE or MIC input jacks on the

back of the secondary driver, and the input controls are not used on the secondary driver apart from the drive level.

4. To enter adjustment mode push the DRIVE ( + and - ) buttons

simultaneously until the status light begins to ash on and o.

5. If setting up a phased array bring the current level up until the

DRIVE output lights from primary and secondary driver match, after releasing the controls. Note: there are 8 button pushes between each output light. In the phased array you want the same signal level in the centre of the secondary loop as you have in the primary.

CLIP

MICLINEDRIVE

PERIMETER

2.5 5 7.5 10

contacta HLD9

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

Secondary Driver Setup

Assumes unit is properly connected and loop has continuity.

To adjust drive when you have selected your mode press

DRIVE + and - together. The status LED will ash.

• Press DRIVE + to increase level.

• Press DRIVE - to reduce level.

Press DRIVE + and - together when adjustment complete

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High Frequency Compensation (PAGE 2)

PAGE 2 settings are for the high frequency compensation which is required to compensate for loss of high frequencies due to the presence of metal within the proximity of the loop.

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

PAGE 2 is identied by LED 2 ashing

Adjustments can be made by pressing the LINE + or - buttons. There are 6dB of HF compensation

adjustment possible

When you are ready to move

onto the next PAGE press the DRIVE + button

Microphone Phantom Power Selection (PAGE 3)

PAGE 3 settings are for the microphone phantom power selection.

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

PAGE 3 is identied by LED 3 ashing

This LED indicates

that phantom power is on

Pressing the LINE + button turns

the phantom power on, pressing

the LINE- button turns phantom power o

When you are ready to move

onto the next PAGE press the DRIVE + button

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Firmware Revision Indication (PAGE 4)

THIS MODE IS DISPLAY ONLY: NO SETUP CAN BE CHANGED.

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

PAGE 4 is identied by LED 4 ashing

PAGE 4 rmware

revision indication

When you are ready to move

onto the next PAGE press the DRIVE + button

Restore to Factory Settings (PAGE 5)

PAGE 5 is for restoring settings.

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLIN

RIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

PAGE 5 is identied by LED 5 ashing

Press the LINE + and LINE -

button simultaneously

To go back to PAGE 1 press the DRIVE + button

To exit Engineers mode press the DRIVE - button.

CLIP ACTIVE PHTM

CLIP ACTIVE LOW SIG

STATUS POWER

MICLINEDRIVE

PERIMETER PRIMARY SECONDARY

2.5 5 7.5 10

contacta HLD9

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Troubleshooting

Symptom Possible Fault Action

I’ve adjusted the HF comp and see no change.

1) The driver is working close to maximum output so there is

not enough headroom for the

HF comp to make a dierence.

1) Check loop characteristics. If response OK at 1 amp, the headroom is inadequate.

I start the driver and

immediately the status light

turns on.

I start the driver and test sequence starts, but after it’s done, the status light turns on.

I’ve connected the loop and the driver doesn’t work, the status light comes on.

My driver has been working well for a couple weeks and now the status light is on.

1)Loop shorted or open, too small or too large.

2) Internal self-test failure.

1) Check loop and connections, try known good loop.

2) Check loop DC resistance

with an ohm meter:

0.33 ohms minimum.

The power light doesn’t come on.

1) Mains power absent.

2) Internal failure.

1) Check mains power.

2) Seek assistance.

I can’t get my driver out of adjustment mode.

1) Button presses not coinciding.

2) Internal failure.

1) Press both buttons together to exit mode.

2) As a last resort, cycle power o/on. New settings should have been saved.

Interference (buzzing/ whistling/hissing) is heard through induction loop.

1) Bad input signals.

2) Internal failure.

1) Power o driver and conrm that interference isn’t from external origin.

2) Disconnect input signals. If sound disappears, check inputs.

My driver is very hot. 1) Large amount of mains hum

present on input.

2) Internal failure.

1) Check input signal source.

2) Incorrect driver being used.

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Symptom Possible Fault Action

No signal on the line input. 1) No input signal connected.

2) HLD in slave mode.

3) Equipment failure.

1) Check “active” light: if unlit check source, if lit, adjust level.

2) HLD must be in PERIMETER or PRIMARY.

3) Seek assistance.

The low signal light is on. 1) The HLD is having to use very

high gain to process the input

signal.

1) Increase the input signal

level at source, reduce the

HLD input level setting.

The Drive level indicate

current is owing but I hear nothing in the loop.

1) Shorted feeder cable (unlikely).

2) Loop listener not working or being used away from loop.

1) Check feeder cable,

although the HLD will usually refuse to tune to shorted

feeder.

2) Check listener and location.

The sound is very distorted. 1) Input level has been turned

up too high for signal level at

input jack.

2) Input signal is distorted.

1) Reduce input level setting.

2) Check signal source.

HLD = Hearing Loop Driver.

If no action is successful please seek assistance from

your distributor or a Contacta installer.

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Mains input

Voltage: 100V-120V /200V-240V AC (Universal auto switching) Frequency: 50Hz-60Hz

Power: 200W

Connection: IEC

Audio Inputs

Input 1 (Microphone) Balanced XLR with switchable phantom power or ¼” TRS jack for electret microphone with 12VDC power via 680Ω load Adjustment range: O, then to maximum in 50x 1dB increments Input 2 (Line) Balanced XLR or ¼” TRS jack (TRS gives galvanic isolation) input Adjustment range: O, then to maximum in 50x 1dB increments

Loop output

Loop connection 4-pole speakON connector

Adjustment range

O, then too maximum in 63 1dB increments

Loop drive current

10A RMS compliance current @ 1Khz sine wave (loop dependant)

Loop drive voltage

36V RMS compliance voltage (loop dependant) Loop current frequency response 100 Hz – 5kHz (±3dB) (loop dependant)

Distortion

Better than -51dB, inputs at nominal level

Expansion

Contacta interconnect Input or output to or from additional Contacta products with 90º phase

shift selectable

Status

Volt-free relay contacts SPCO

Feature

External monitor & control Contacta communications processor interface

Displays

Microphone level 8 level bar graph with peak hold, 6dB steps Line level 8 level bar graph with peak hold, 6dB steps Output drive level 8 level bar graph with peak hold, 0.6A steps Other indications LEDs for all setup and status indications

Dimensions

Height – 2.48” (2U 19” rack mount) Width – 7.87” (19” half rack) Depth – 10.47” Weight 3.8lbs

Construction/Finish

Front & Rear: Mild Steel / Top & Bottom: Aluminium Powder Coated Black

Continual improvement policy

Contacta has a policy of continual improvement for its products. This means that designs and specications are subject to change without notice.

Technical Specication

Page 17

We oer a 5 year warranty* for our large area loop drivers. For our other products there is a 1 year warranty** that applies. The warranty will begin from dispatch date from our warehouse.

Exceptions

This warranty will not cover products that have been misused, tampered with or are faulty as a

result of standard wear and tear, or careless handling. Any water damage will void the warranty and cosmetic damage will not be covered. Cable, stickers & batteries are not included within the warranty policy.

Returns

Our products can be returned up to 30 days from the receipt of goods. Products for return must be within the original packaging, in unchanged condition. Bespoke and made to order products are non-refundable.

Contact us using [email protected] if you’d like to request to return a product. Please state the date of purchase, invoice number and your reason for return. On receipt of returned items we will issue you a credit note for the cost of the product. Please note, we do not cover the original cost of shipping or shipping back to us.

Faulty Goods

If you have a faulty product, please email us at [email protected]. We will work with you to resolve the problem remotely, using the standard test procedure contained in our Troubleshooting documents and other methods. If a manufacturing fault is conrmed we will arrange for the shipping back to us at our cost.

In the instance that we receive a faulty product we will either repair and return the product to you or a credit note will be provided (the product must be in a reasonable condition according to the terms).

If a product is returned as faulty but we cannot detect an issue, you may be charged a troubleshoot fee and you will be liable for the cost of shipping. Goods that arrive in a damaged condition must be reported to us immediately.

*Exceptions apply. **2 year warranty for export distributors.

Warranty

Page 18

EMC

• BS EN 55103-1: 2009 (EMC emissions)

• BS EN 55103-2: 2009 (EMC immunity)

• FCC class “B” EMC (emissions)

This product has been designed and tested to comply with the following North American and

Canadian standards:

• UL 60065: 2015 8th edition

• CAN/CSA C22.2 No. 60065:2016 2nd Edition

• IEC 60065: 2014 8th Edition

• EN 60065: 2014 8th edition

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

CAUTION: Changes or modications not expressly approved by Contacta Systems LTD or an authorised partner could void the user’s authority to operate the equipment.

Correct disposal of this product

This marking indicates that this product should not be disposed with other household waste throughout the EU. To prevent possible harm to the environment or human health from

uncontrolled waste disposal and to conserve material resources, this product should be recycled

responsibly. To dispose of your product, please use your local return and collection systems or contact the retailer where the product was purchased.

Standards

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