Ampetronic CLD1-AC Manuale del sistema

CLD1-AC INSTALLATION HANDBOOK

Box Contents

1 x CLD1-AC

1 x AC power cable

1 x A6 Induction loop logo

1 x 'CLD1-AC Installation Handbook'’

1 x Loop coil and fixings (if requested)

1 x Microphone option (if requested)

Handbook Contents

!Introduction

!Quick Start

!Installation

!Troubleshooting

!Technical Specification

!Warranty

!Declaration Of Conformity

Safety

This symbol is used to alert the user to important

operating or maintenance instructions.

The Lightning bolt triangle is used to alert the user

to the risk of electric shock.

SAFETY

1. It is important to read these instructions, and to follow them.

2. Keep this instruction manual in an accessible place.

3. Clean only with a dry cloth. Cleaning fluids may effect the equipment.

4. Do not cover or obstruct ventilation of this unit. Install in accordance with

the manufacturer’s instructions.

5. Do not install near any heat sources such as radiators, heating vents, or other

apparatus that produces heat.

6. Refer all servicing to qualified personnel. Servicing is required when the

apparatus has been damaged in any way, such as a power supply cord or

plug is damaged, liquid has been spilled or objects have fallen into the

apparatus, the apparatus has been exposed to any rain or moisture, does not

operate normally or has been dropped.

7. WARNING - To reduce risk of fire or electric shock, do not expose this

apparatus to rain or moisture. The apparatus shall not be exposed to

dripping or splashing and no objects filled with liquids, such as vases,

shall be placed on the apparatus.

TO PREVENT ELECTRIC SHOCK DO NOT

REMOVE THE COVER. THERE ARE NO

USER SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED

PERSONNEL.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

INTRODUCTION

The CLD1-AC Compact Loop Driver has been designed as a high quality stand-

alone induction loop driver for ticket counters, banks or other point of sales

systems.

The unit is designed to drive the standard multi-turn loop (if supplied), or a small

area perimeter loop up to an area of 40m². Consult designing induction loops

handbook for more details.

The CLD1-AC features include:

jMicrophone input - for use with unbalanced electret microphones.

kSelectable microphone or unbalanced line level input. (Mic' mode as

above)

lAC power input - standard 2-pin AC power socket..

mLoop output with spring clamp connections.

nIndividual level controls for each signal input, MLC (Metal Loss

Correction) style tone control and loop output.

oSeparate indication of power, input signal and loop current for easy set up.

INPUT 1 INPUT 2

MLC

POWER

LOOP

CURRENT

LOOP

CURRENT

INPUT

SIGNAL

COMPACT

LOOP

DRIVER

CLD1-AC

INPUT 2

SELECT

Line - Mic

LOOP

OUTPUT

POWER INPUT 100 - 240V

50 - 60Hz 12W

QUICK START

1. Fit CLD1-AC to a panel or wall under the counter, away from contact by the

system user. Ensure the cables are positioned such that they are not vulnerable

to damage and are unlikely to be snagged or disconnected from the unit.

2. Fit either the loop coil (provided) or perimeter loop:

·Unfold the loop coil and fit vertically inside the front panel of the counter

using the adhesive fixings provided. The top of the loop coil should ideally

be at a height of 800mm above the floor.

Glass screen

(if fitted)

Place coil

immediately

below counter

Obstruction

Figure 2

Glass screen

(if fitted)

Counter

Desk

(customer side)

Counter

Desk

(customer side)

Place coil

immediately

below counter

Figure 1

Do not position

coil in this

position

·If a perimeter loop is to be used, the feed wires to the amplifier should

be twisted together. See 'Designing Induction Loops handbook' for details.

3. Connect the loop wires to 'LOOP OUTPUT' terminals. Polarity is not important.

To open the spring clamp terminal - insert a flat bladed screwdriver into the

small “tab” above the hole. Push gently until hole opens.

4. Connect signal to 'INPUTS 1 and 2' as required (see: Connection details).

5. Position 'INPUT 2 SELECT' slide switch for Line or Mic as required.

6. Connect AC power cable to 'POWER INPUT' socket on the unit. Connect to AC

supply.

7. Switch on external AC power: Check green 'POWER' LED illuminates.

8. Apply input signal (e.g. by speaking into mic') and if required increase

corresponding 'INPUT 1 or 2' control until the green 'INPUT SIGNAL' LED

begins to light.

9. Repeat item 9 for the second input (if used). Only apply one audio signal at a

time when setting up the system.

10. If required adjust the 'LOOP CURRENT' control until the yellow 'LOOP

CURRENT' LED lights at peaks in the input signal.

11. Test the performance of the system using a loop receiver or field strength

meter and adjust 'MLC' & 'LOOP CURRENT' to achieve acceptable

performance.

Note: Once the 'LOOP CURRENT' control is set, do not adjust it again.

MOUNTING DETAILS

I/P 1

I/P 2

mic -60

I/P 2

I/P 1

line

-60

-20

mic

line

select

switch

40dB mlc

drive

O/P

BLOCK DIAGRAM

Balanced Input

A+

B-

Screen

Connect screen and -ve

signal lead together

Stereo Source

Left

Right

Screen

Keep all wires very short

10k

Screen

Ideally fit the two 10k, ¼W, summing

resistors within the body of the jack plug

10k

CONNECTION (LINE LEVEL INPUT)

Fixing Hole centres 170.0mm apart

INSTALLATION

Tools

You will require the following:

·Small flat bladed screwdriver

·Screws, fixings and appropriate tools for mounting CLD1-AC on wall etc.

Location

The amplifier should be mounted where:

·It is in close proximity to the loop.

·it is protected from drips or sprays of water.

·it is not vulnerable to mechanical damage.

·the controls can be accessed during set-up.

·the cables will not be inadvertently caught or pulled out from the unit.

·any heat generated during normal operation can escape.

The induction loop itself is a critical to correct system performance, either:

·Unfold the loop coil and fit vertically inside the front panel of the counter

using the adhesive fixings provided. The top of the loop coil should ideally

be at a height of 800mm above the floor. See diagram in Quick start.

2 2

·To cover a larger area, a perimeter loop using 0.5mm to 1.5mm cross-

section wire or equivalent. Return the feed to the amplifier with a

twisted pair. Refer to 'Designing Induction Loops handbook' for details.

Please consult Ampetronic if you need more advice about the loop design.

Connections

LOOP: Connect the loop cable to the 'LOOP OUTPUT' socket.

1. To open the spring clamp terminal - insert a flat bladed screwdriver into the

small “tab” above the hole. Push gently until hole opens.

2 Insert the wire (remove 7mm of insulation from end).

3. Remove the screwdriver - clamping the wire in place.

INPUTS: Both inputs are 3.5mm two pole (mono) jack sockets. They will not

interface directly to any stereo signal source. Connect inputs as shown in the

connection details.

INPUT 1 Unbalanced electret microphone only.

INPUT 2 Microphone as INPUT 1, or Line level input. Note: Set the 'INPUT 2

SELECT' switch to the appropriate position for the type of signal source used.

AC POWER: The 'POWER INPUT' socket accepts 100-240V . Connect to a

convenient AC power socket.

TROUBLESHOOTING

For correct operation, with input signal(s), you should have the following LEDs illuminated:

'POWER' (Green)

'INPUT SIGNAL' (Green) only whilst audio signal is applied to an input

'LOOP CURRENT' (Yellow) only at peaks of audio signal

Power LED not illuminated

No external AC power - Check cable has not been unintentionally disconnected.

Ensure external AC power supply is switched ON.

Internal Fuse Blown - Disconnect from supply and fit a correctly rated

replacement. See SAFETY clause 6.

INPUT SIGNAL LED not illuminated at any time

No inputs connected - Connect an input as described in INSTALLATION.

‘INPUT' control too low - Adjust control as appropriate see: OPERATION.

Input signal level too low - Check that signal level is the correct level for the chosen

input see: TECHNICAL SPECIFICATIONS

'LOOP CURRENT' LED not illuminated (even at peaks of signal)

Loop not connected or open circuit - Check loop continuity using a resistance meter.

‘INPUT SIGNAL' LED not illuminated - See above.

'LOOP CURRENT' control too low - Adjust control as appropriate see: OPERATION.

Low or no field received in the loop area

If 'LOOP CURRENT' LED is illuminated, but no field is received in the loop area, either:

the loop is installed in the wrong place, or

there is a short circuit between the ends of the feed cable.

If 'LOOP CURRENT LED is illuminated, but there is only a very low or dull field strength.

there is significant metal in the desk / counter near the loop consult Ampetronic.

If 'LOOP CURRENT' LED is not illuminated - See above.

CLD1 Power Supply: Loop Output:

Supply range: 100-240V Current: >2.4A or 3.4A @ 1kHz

AC RMS pk

Voltage: >3.2V or 4.5V @ 1kHz

RMS pk

Loop Resistance: 0.3Wto 1.0W

Loop Impedance: 1.3Wmax @ 1.6kHz.

Spring terminal connections accept

Internal DC Fuse: stranded or single core wire.

Acceptable wire gauge:

Audio signal inputs: 2

CSA: 0.5 to 1.5mm

2-pole 3.5mm Jack sockets AWG: 22 to 16.

INPUT 1:

Frequency Response:

Input Impedance: 8.5kW

80Hz - 5.0kHz "1.5dB, at low level

Sensitivity: -60dBu (775uVrms)

measured as loop current with no MLC.

Overload: -13dBu (173mVrms)

Microphone cables must be <= 3m MLC (Metal Loss Correction):

INPUT 2: 0dB to 4dB per octave boost.

Line - Mic mode selectable with switch. Fully anticlockwise - flat response.

'Mic' mode: same as Input 1 Environmental:

'Line' mode: Ambient temperature: -20°C to +50°C

Input Impedance: 820kWIP rating: IP20.

Sensitivity: -20dBu (77.5mVrms)Physical:

Overload: +20dBu (7.75Vrms)Weight: 400g

Note: This input is not isolated.

Compression (AGC): Height: 35mm

40dB dynamic range Depth: 75mm

Controlled by adjusting input level. Standards:

Attack and decay time constants optimized Meets relevant CE, EMC and safety

for speech. standards.

Loop Design: IEC 60118-4 AFILS

Standard loop coil (supplied) or perimeter

loop. See 'Designing Induction Loops Please contact Ampetronic if you need further

Handbook' for details. assistance.

Consult Ampetronic for advice.

Supply currents (with nominal voltage):

Nominal (pink noise): 80mA

Quiescent: 15mA

Maximum: 180mA.

T 1.6A L

Width: 180mm

TECHNICAL SPECIFICATIONS

This product carries a five year parts and labour warranty from date of

shipment from Ampetronic. To qualify for the five year warranty, the product

must be registered at www.ampetronic.co (products/warranty), without which

the warranty will be valid for two years only.

The warranty could be invalidated if the instructions in this handbook are not

followed correctly, or if the unit is misused in any way.

Manufacturer: Ampetronic Ltd.,

Unit 2, Trentside Business Village

Farndon Road

Newark

NG24 4XB

Declares that the product:

Description: Induction Loop Driver

Type name: CLD1-AC

conforms to the following directive(s and Norm(s):

2014 / 35 / EU The Low Voltage Directive (LVD)

and its amending directives

2014 / 30 / EU The Electromagnetic Compatibility Directive (EMC)

and its amending directives

2014 / 53 / EU The Radio Equipment Directive (RED)

and its amending directives

2011 / 65 / EU The RoHS Directive

and its amending directives

Ihereby declare that the equipment named above has been designed to

comply to with the relevant sections of the above specifications. The unit

complies with all essential requirements of the Directives.

Date: June 2019

J.R. Pieters

Managing Director

Ampetronic Ltd.

WARRANTY

DECLARATION OF CONFORMITY

UP16501-9

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