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1.
INTRODUCTION
The ILD60DC Induction Loop Driver is designed for installation in motor
vehicles, where it will connect to the 12V battery supply, the installed stereo
sound system (extracting compatible mono), and with provision for a
microphone to be mounted in the appropriate location.
Warranty Information
This product carries a 5 year parts and labour warranty which could be
invalidated if these instructions are not followed correctly, or if the unit is
tampered with in any way.
The 5 year warranty is dated from the time the equipment leaves
Ampetronic and NOT when it is installed.
2.
PRELIMINARY INSTALLATION DATA.
2.1
Inspect the equipment upon unpacking, to ensure that the contents of the
shipping carton are not damaged.
2.2
Ensure a fused supply from the 12V battery system which is switched, so
that the equipment is only activated when the ignition is on - possibly use a
switched power feed from the second system.
2.3
The unit must be installed in a location where the equipment is restrained
from moving, while still premitting ventilation. When seen from the top,
normal way up, the left hand side is used as a heat radiator, and must not
be blocked. Actual position is not important, note that the equipment is not
protected against dirt and liquids.
The unit can be placed fixed to a wall surface by means of two
roundheaded No. 8 wood screws fitted to suit the rear hole pattern. The
screws are positioned at 160mm separation in a vertical line. The drilling
template will assist in correct positioning.
2.3
Prepare the input signal connection as described in section 3.
2.4
Connect the loop cable to the rear Loop Terminals. Ensure that no stray
wire ends protrude from the terminal. The polarity of the loop is not
important. For the sizing of the loop, see the chapter on Loop Design. It is
important that the loop cable ends will form a twisted pair in the area of the
amplifier, to reduce the magnetic field near the amplifier position.
ILD60DC
Induction Loop Driver
1
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Related Manuals for Ampetronic ILD60DC
Summary of Contents for Ampetronic ILD60DC
- Page 1 ILD60DC Induction Loop Driver INTRODUCTION The ILD60DC Induction Loop Driver is designed for installation in motor vehicles, where it will connect to the 12V battery supply, the installed stereo sound system (extracting compatible mono), and with provision for a microphone to be mounted in the appropriate location.
- Page 2 Dynamic microphones cannot normally be used with the equipment, because of the much lower signal level, and the DC bias which seriously impairs the performance of the microphone. Ampetronic can supply a special adaptor which permits the use of dynamic microphones (and electrets which are affected by the DC bias).
- Page 3 connection to the Left and Right channels of the SCART signal, or the output from a HiFi system. It is also possible to connect the line-level output of another sound system to this input. Again, the maximum cable length on this input should be less than 3 metres to ensure EMC compliance.
- Page 4 LOOP DESIGN The design of the actual loop is an important aspect of the satisfactory operation of the ILD60. A number of parameters must be taken into account, and the following design procedure will provide the correct loop in most installations. It must be stressed that there are sometimes very unusual circumstances which demand unusual solutions, and the installer should then take great care over the design and installation aspects.
- Page 5 Choice of loop Cable Please note that the Ampetronic Loop Drivers have been designed to operate into single turn loops, and must not be used with old–fashioned multiturn loop layouts. Unusual or special loop layouts may only be used with the express approval of Ampetronic Ltd. to ensure compliance with all technical standards.
- Page 6 If you have any difficulties in calculating the loop design, or experience difficulties with the operation of the equipment, then contact your supplier or Ampetronic Ltd. It is useful to have all the relevant data available when contacting our technical staff who will be pleased to help you. The following are known trouble areas: –...
- Page 7 RFI generation takes place. Internal time constants are very short. DC Power input: 12 Volts DC Dimensions : Length: 216mm Width: 124mm Height: 44mm Weight: 1.3kg. TheILD60DC is designed and manufactured in England by Ampetronic Ltd.
- Page 8 DECLARATION OF CONFORMITY Manufacturer: Ampetronic Ltd. Address: Northern Road, Newark, Nottinghamshire, NG24 2ET. United Kingdom. Declares that the product: Description: Induction Loop Driver Type Name: ILD60DC Conforms to the following Directive(s) and Norm(s): Directive 89/336/EEC EMC: EN55103 (1 & 2) 1997...
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