Induction Loop Products Catalogue

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1 Induction Loop Products Catalogue

2 Contents Induction Loop Drivers ILD1000G Pro-series induction loop driver for areas over 1300m 2* ILD500 Pro-series induction loop driver for areas of up to 700m 2* ILD300 Pro-series induction loop driver for areas of up to 420m 2* ILD122 Pro-series induction loop driver for areas of up to 200m 2* Loop Array Systems Application note for arrays ILD100 Meeting / TV room induction loop driver for areas up to 200m 2* CLD1 / CLD1 AC Counters, desks and small area induction loop driver CLS1 Wall mounted perimeter induction loop driver for rooms of up to 200m 2* CLS2 Wall mounted perimeter induction loop driver for rooms of up to 400m 2* XA88 HLS02 ILD15 Rail and tram carriage induction loop driver for O.E.M. applications Intercom and help point induction loop driver for O.E.M. applications Lift/Elevator induction loop driver for O.E.M applications *Induction loop driver coverage is dependant on room aspect ratio, see product information for details. Test Equipment FSM ILR3 / ILR3+ Checking a loop CMR3 Field strength meter Loop listener / monitor Application note for use of ILR3+ Calibrated measuring receiver Accessories MP221 Ancillary Equipment Input Signal Adaptors Microphones Installation Accessories Microphone pre-amplifier Signal processors, transformers and combination units Universal attenuators and balanced/electret microphone adaptors Desktop, boundary and tie clip microphones Copper foil tape, installation warning tape, PVC extrusions, burial cables and induction loop notification logos Issue no UP

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4 Datasheet ILD1000G Professional Audio Induction Loop Driver The ILD1000G sets a new standard for high performance professional induction loop systems. Utilising a new amplification technology, the ILD1000G provides the highest output available in a single amplifier, while halving power consumption and heat dissipation. It is capable of driving the largest perimeter loops to over 1300m, and with high voltage headroom, the longest 2 cable runs and large array systems. All of this power and performance is packaged in an elegant and space efficient 19 1U case. The ILD1000G is also designed for versatility, with 3 configurable inputs to cope with any scenario, usable freestanding, wall mounted or rack mounted with the included brackets. The ILD1000G is built to our exacting standards and is backed by our 5 year warranty. Features Very high output for the largest applications High efficiency class-g amplifier with low heat dissipation Very compact 1U rack mount, wall mount or free standing Versatile input selection 1 XLR balanced microphone 1 XLR balanced mic / line switchable input 1 6.3mm balanced jack line input Low lifetime cost Excellent reliability 5 year warranty Unparalleled sound quality Metal loss corrector Rack mount brackets included Free technical support Perimeter Loops Area Coverage Capable of driving the largest practical perimeter loops - theoretical area coverage >1000m for square areas, >1300m for rectangular areas, though 2 2 the practical limit may be set by the installation environment. Ampetronic design tools and support are available to check the expected performance for your application. Low Overspill or Low Loss Systems ILD1000G amplifiers are designed for use in combination with Ampetronic Ultra-Low Spill technology. Two amplifiers, an SP5 and an array design TM can be used to: minimise spill confines signal to within 1.5m of room, suitable for adjacent rooms e.g. cinemas, classrooms, or confidential rooms compensate for high losses due to metal structures drive large areas where perimeter loops cause too much variation Combined systems for very large areas Multiple ILD1000G amplifiers can be combined using Ampetronic ILC Parallel Drive technology to drive systems in excess of 4000m. TM 2 Contact Ampetronic support for details. Maximum Cable Length The ILD1000G is designed for SINGLE TURN loops for optimum audio quality. Applications include Conference facilities Stadia Theatres Sports halls Confidential rooms Courts Lecture halls Cinemas For loops with DC resistance from 0.5 to 3.0Ω, impedance to 3.5Ω Maximum cable length is dependent on cable type and on the application: Cable type Maximum Total Cable Length (m) Normal use* Transient speech* 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape * Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies Ampetronic recommends delivery of full current up to 1.2kHz for these applications. Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies ask Ampetronic for more details.

5 ILD1000G Product Information Equipment supplied as standard with the ILD1000G Handbook and installation instructions 197 x 252mm loop system present sign (deaf logo) Region specific mains cable Loop connector Rack mount brackets Status Connector ILD1000G optional accessories Ampetronic can supply a range of accessories to meet the specific needs of your installation: Input adaptors Installation Accessories Wall mount brackets Phase shifter A range of input adaptors and interface cables to accept most audio source inputs, see table below 18mm x 0.25mm copper tape PVC extrusion to protect copper tape Installation / warning tape to fix cable or tape to a floor WMF1-U Input adaptors and preamplifiers SP5 for an array system requires a design which can be provided by Ampetronic. By using the appropriate input adaptor or preamplifier the ILD1000G will accept multiple additional inputs or audio inputs from other sources: Input type Additional microphone 100V line input Low impedance speaker line Line Level Adaptor MP221 preamps can drive up to 2 mics + 2 line inputs ATT-UJ & ATT-UX transformer isolated attenuators INPUTS Power Input 1 120W 230V AC nominal, 45-65Hz [120V option available] Power switch and LED indicator on front panel XLR balanced microphone input for Ω microphones; 15dB user selectable gain boost; + 15V DC phantom power (selectable); sensitivity 55dBu; front panel recessed gain control Input 2 XLR balanced input, switched between microphone and line Selectable on the rear panel. Microphone specifications as for input 1 microphone / Line specifications: 15dB user selectable gain boost; line sensitivity -30dBu; overload protected; phantom power disabled in line mode; front panel recessed gain control Input 3 Line input Slave I/O OUTPUTS Drive voltage 6.3mm jack socket balanced line input; sensitivity -30dBu; overload protected, front panel recessed gain control 6.3mm jack socket insert point for connection of SP5 phase shifter 0dBu signal can be used for recording 31.8V rms 45V peak at maximum output current Drive current 9.2A rms (13A pk ) continuous 1kHz sine wave peak >13A Short term peaks >19A Front panel recessed control Drive current indicated on 6-LED display in 3dB increments Loop connector Neutrik NL4 Speakon (supplied) Loop monitor Status AUDIO SYSTEM Frequency response Distortion Automatic gain control Metal loss correction Provides access to actual loop current via a 3.5mm stereo headphone connector on front panel A pair of isolated relay contacts to indicate system status; fault = open circuit: system O.K. = short circuit 80Hz to 6.5kHz THD+N <0.2% 1kHz sine at full current The AGC is optimised for speech. Dynamic range >36dB Corrects system frequency response due to metal structures in a building. Gain constant at 1kHz, adjustable gain slope from 0 to 3dB per octave. This does not compensate for signal loss from metal structures which can be significant. Unbalanced microphones MAT1 adaptor ADDITIONAL FUNCTIONS Standards compliance The ILD1000G is CE marked to all relevant safety and EMC standards. All Ampetronic amplifiers can be used to create a system that meets the requirements of IEC118-4 and the relevant recommendation of BS7594, however the design and installation of the system is equally important to meet these Induction Loop standards. Some Ampetronic products are CSA registered for sale in the USA and Canada contact Ampetronic for details. Fault monitoring Status Contact Ancillary Cooling PHYSICAL Three LED fault indicators on the front panel; Overload delivering over the rated current or voltage Overheat unit is too hot (mutes output signal) Loop error short circuit / open circuit error A pair of relay contacts are provided for remote fault monitoring To supply Ampetronic ancillary units ±15V DC 0.15A power outlet on rear panel Forced ventilation. Air intake on left panel, air ejection at rear Size Mounting options Full width 1U 19" rack mount. Width 430mm Depth 220mm Height 44mm Freestanding 1U 19" rack mount (brackets included) Wall mounting (requires additional brackets) Weight 3.8kg Environment IP20 rated; 20 to 90% relative humidity; 0 to 35ºC sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no ILD1000G UP Northern Road, Newark NG24 2ET. United Kingdom

6 Datasheet ILD500 Professional Audio Induction Loop Driver The ILD500 is a professional audio induction loop driver capable of driving loop areas in excess of 700m 2 with an unsurpassed clarity of sound for both music and speech for superior intelligibility. Based on proven and highly reliable technology it is backed by an unrivalled 5 year warranty and free technical support. Improved power output provides outstanding value without compromise. It boasts all the usual features found on Ampetronic equipment such as metal loss correction and is compatible with our unique Ultra-low Spill technology. The ILD500 is a compact and elegant unit suitable for freestanding, wall mounting or rack mounting. Perimeter Loops Area Coverage (maximum) Features Area coverage to >700m 2 Low lifetime cost Excellent proven reliability 5 year warranty Unparalleled sound quality Excellent intelligibility Speech optimised gain control High voltage headroom avoids high frequency clipping Metal loss corrector corrects frequency dependent loss from metal structures Rack mount brackets included Microphone (XLR) and line inputs Extensive input adaptors available for any audio input requirement Free technical support line for advice, design and install Room aspect ratio 1:1 2:1 3:1 Maximum area m For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required: Loop must be 1-2m above or below the receiver height There should be no metal structures in the plane of the loop Sufficient voltage to drive the loop check the cable table below Low Overspill or Low Loss Systems ILD500 amplifiers are designed for use in combination with Ampetronic Ultra-Low Spill technology. This will require an SP5 phase shifter and an array design Ampetronic can provide designs or guidance for any application. Used to drive an array, two ILD500s can: Minimise spill confines signal to within 1.5m of room, suitable for adjacent rooms e.g. cinemas, classrooms, or confidential rooms Compensate for high losses due to metal structures the only effective solution for high loss environments to meet IEC Maximum Cable Length The ILD500 is designed for SINGLE TURN loops for optimum audio quality: Loops with DC resistance from 0.3 to 2.0Ω Impedance up to a maximum of 2.2Ω Maximum cable length is dependent on cable type and on the application: Applications include Conference facilities Stadia Theatres Sports halls Confidential rooms Courts Lecture halls Cinemas Cable type Maximum Total Cable Length (m) Normal use* Transient speech* 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape * Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies Ampetronic recommends delivery of full current up to 1.2kHz for these applications. Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies ask Ampetronic for more details.

7 ILD500 Product Information Equipment supplied as standard with the ILD500 Handbook and installation instructions 197 x 252mm loop system present sign (deaf logo) Region specific mains cable Loop connector ILD500 optional accessories Ampetronic can supply a range of accessories to meet the specific needs of your installation: INPUTS Power Microphone input Line input Slave I/O OUTPUTS 85W 230V AC nominal, 45-65Hz [120V option available] Power switch and LED indicator on front panel XLR balanced microphone input for Ω microphones; 15dB user selectable gain boost; + 15V DC phantom power (selectable); sensitivity 70dBu; front panel recessed gain control 6.4mm jack socket balanced line input; sensitivity 30dBu; overload protected; front panel recessed gain control. 6.4mm jack insert point for connection of SP5 phase shifter 0dBu signal can be used for recording Installation accessories Wall mount brackets Phase shifter Input adaptors 18mm x 0.25mm copper tape PVC extrusion to protect copper tape Installation / warning tape to fix cable or tape to a floor WMF1-U SP5 for an array system requires a design which can be provided by Ampetronic. A range of input adaptors and interface cables to accept most audio source inputs, see table below Drive voltage 14.1 V rms (20.0V pk ) at maximum output current Drive current 6.4 A rms (9.0A pk ) continuous 1kHz sine wave Short term peaks: >13A Front panel recessed control Drive current indicated on 6-LED display in 2dB increments Loop connector Neutrik NL4 (supplied) Loop Monitor AUDIO SYSTEM Provides access to actual audio signal in loop 3.5mm stereo headphone connector on front panel Input adaptors and preamplifiers By using the appropriate input adaptor or preamplifier the ILD500 will accept multiple additional inputs or audio inputs from other sources: Input type Additional microphone and or line inputs 100V line input Low impedance speaker line Line Level Unbalanced microphones Standards compliance Adaptor MP221 mixer to 2 mics + 2 line inputs ATT-UJ & ATT-UX transformer isolated attenuators MAT1 adaptor The ILD500 is CE marked to all relevant safety and EMC standards. All Ampetronic amplifiers can be used to create a system that meets the requirements of IEC118-4 and the relevant recommendation of BS7594, however the design and installation of the system is equally important to meet these Induction Loop standards. Some Ampetronic products are CSA registered for sale in the USA and Canada contact Ampetronic for details. Freq. response 80Hz to 6.5kHz Distortion Automatic Gain Control Metal loss correction ADDITIONAL FUNCTIONS THD+N <0.2% 1kHz sine at full current The AGC is optimised for speech. Dynamic range >36dB Front panel recessed input level control Corrects system frequency response due to metal structures in a building. Gain constant at 1kHz, adjustable gain slope from 0 to 3dB per octave. This does not compensate for signal loss from metal structures which can be significant. Fault Three LED fault indicators on the front panel; Monitoring Overload delivering over the rated current Overheat unit is too hot (mutes output signal) Loop error short circuit / open circuit error Ancillary Cooling PHYSICAL Size To supply Ampetronic ancillary units ±15V DC 0.15A power outlet on rear panel Forced ventilation. Air intake on left panel, air ejection at rear Full width 1U 19" rack mount. Width 430mm Depth 220mm Height 44mm Mounting Freestanding options 1U 19" rack mount (brackets included) Wall mounting (requires additional brackets) Weight 3.2kg Environment IP20 protection; 20 to 90% relative humidity; 0 to 35ºC sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no ILD500 UP Northern Road, Newark NG24 2ET. United Kingdom

8 Datasheet ILD300 Professional Audio Induction Loop Driver The ILD300 is a professional audio induction loop driver capable of driving loop areas in excess of 400m 2 with an unsurpassed clarity of sound for both music and speech for superior intelligibility. Based on proven and highly reliable technology it is backed by an unrivalled 5 year warranty and free technical support. Improved power output provides outstanding value without compromise. It has all the usual high quality features found on Ampetronic equipment such as metal loss correction and is compatible with our unique Ultra-Low Spill technology. The ILD300 is very compact and elegant, suitable for freestanding, wall mounting or rack mounting. Features Area coverage to >400m 2 Low lifetime cost Excellent proven reliability 5 year warranty Unparalleled sound quality Excellent intelligibility Speech optimised gain control High voltage headroom avoids high frequency clipping Metal loss corrector corrects frequency dependent loss from metal structures Very compact: 215 x 220 x 44mm Microphone (XLR) and line inputs Extensive input adaptors available for any audio input requirements Free technical support line for advice, design and install Perimeter Loops Area Coverage (maximum) Room aspect ratio 1:1 2:1 3:1 Maximum area m For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required: Loop must be 1-2m above or below the receiver height There should be no metal structures in the plane of the loop Sufficient voltage to drive the loop check the cable table below Low Overspill or Low Loss Systems ILD300 amplifiers are designed for use in combination with Ampetronic Ultra-Low Spill technology. This will require an SP5 phase shifter and an array design Ampetronic can provide designs or guidance for any application. Used to drive an array, two ILD300s can: Minimise spill confines signal to within 1.5m of room, suitable for adjacent rooms e.g. cinemas, classrooms, or confidential rooms Compensate for high losses due to metal structures the only effective solution for high loss environments to meet IEC Maximum Cable Length The ILD300 is designed for SINGLE TURN loops for optimum audio quality: Loops with DC resistance from 0.2 to 1.2Ω Impedance up to a maximum of 1.3Ω Maximum cable length is dependent on cable type and on the application: Applications include Conference facilities Theatres Sports halls Educational environments Confidential rooms Courts Lecture Halls Cable type Maximum Total Cable Length (m) Normal use* Transient speech* 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape * Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies Ampetronic recommends delivery of full current up to 1.2kHz for these applications. Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies ask Ampetronic for more details.

9 ILD300 Product Information Equipment supplied as standard with the ILD300 INPUTS Power 35W 230V AC nominal, 45-65Hz [120V option available] Power switch and LED indicator on front panel Handbook and installation instructions 197 x 252mm loop system present sign (deaf logo) Region specific mains cable Loop connector ILD300 optional accessories Ampetronic can supply a range of accessories to meet the specific needs of your installation: Installation accessories Wall mount brackets 18mm x 0.25mm copper tape PVC extrusion to protect copper tape Installation / warning tape to fix cable or tape to a floor WML-1U Rack mount brackets RM-1U Phase shifter SP5 for an array system use of and SP5 requires a design which can be provided by Ampetronic Microphone input Line input Slave I/O OUTPUTS Drive voltage XLR balanced microphone input for Ω microphones; 15dB user selectable gain boost; + 15V DC phantom power (selectable); sensitivity 70dBu; front panel recessed gain control 6.4mm jack socket balanced line input; sensitivity 30dBu; overload protected; front panel recessed gain control 6.4mm jack insert point for connection of SP5 phase shifter 0dBu signal can be used for recording 6.4V rms (9.0V pk ) at maximum output current Drive current 4.9 Arms (7.0A pk ) continuous 1kHz sine wave Short term peaks >10 A Front panel recessed control Drive current indicated on 4-LED display in 3dB increments Loop connector Wieland ST17/2 (supplied) Loop Monitor Provides access to actual audio signal in loop 3.5mm stereo headphone connector on front panel Input adaptors A range of input adaptors and interface cables to accept most audio source inputs, see table below AUDIO SYSTEM Freq. response 80Hz to 6.5kHz Distortion THD+N <0.2% with 1kHz sine at full current Input adaptors and preamplifiers Automatic The AGC is optimised for speech. Range >36dBu By using the appropriate input adaptor or preamplifier the ILD300 will accept multiple additional inputs or audio inputs from other sources: Input type Additional microphone and/or line inputs 100V line Low impedance speaker line Line Level Unbalanced microphones Standards compliance Adaptor MP221 preamp provides up to 2 mic + 2 line inputs ATT-UJ & ATT-UX transformer isolated attenuators MAT1 adaptor The ILD300 is CE marked to all relevant safety and EMC standards. All Ampetronic amplifiers can be used to create a system that meets the requirements of IEC118-4 and the relevant recommendation of BS7594, however the design and installation of the system is equally important to meet these Induction Loop standards. Some Ampetronic products are CSA registered for sale in the USA and Canada contact Ampetronic for details. Gain Control Metal loss correction ADDITIONAL FUNCTIONS Front panel recessed input level control Corrects system frequency response due to metal structures in a building. Gain constant at 1kHz, adjustable gain slope from 0 to 3dB per octave This does not compensate for signal loss from metal structures, which can be significant Fault Three LED fault indicators on the front panel: Monitoring Overload delivering over the rated current Overheat unit is too hot (mutes output signal) Loop error short circuit / open circuit error Ancillary Cooling PHYSICAL Size To supply Ampetronic ancillary units ±15V DC 0.15A power outlet on rear panel Cooling is by natural convection from product casing Half width 1U 19" rack mount Width 215 mm Depth 220mm Height 44mm Mounting Freestanding options 1U 19" rack mount (requires additional rack tray) Wall mounting (requires additional brackets) Weight 1.8kg Environment IP20 protection; 20 to 90% relative humidity; 0 to 35ºC sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

10 Datasheet ILD122 Professional Audio Induction Loop Driver The ILD122 is a professional audio induction loop driver capable of driving loop areas of up to 200m 2 with an unsurpassed clarity of sound for both music and speech for superior intelligibility. Based on proven and highly reliable technology it is backed by an unrivalled 5 year warranty and free technical support. Improved power output provides outstanding value without compromise. It boasts all the usual features found on Ampetronic equipment such as metal loss correction and is compatible with our unique Ultra-Low Spill technology. The ILD122 is very compact and elegant, suitable for freestanding, wall mounting or rack mounting. Features Area coverage to >200m 2 Low lifetime cost Excellent proven reliability 5 year warranty Unparalleled sound quality Excellent intelligibility Speech optimised gain control High voltage headroom avoids high frequency clipping Metal loss corrector corrects frequency dependent loss from metal structures Very compact: 215 x 220 x 44mm Microphone (XLR) and line inputs Extensive input adaptors available for any audio input requirements Free technical support line for advice, design and install High voltage headroom ideally suited to arrays and long cable lengths Perimeter Loops Area Coverage (maximum) Room aspect ratio 1:1 2:1 3:1 Maximum area m For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required: Loop must be 1-2m above or below the receiver height There should be no metal structures in the plane of the loop Sufficient voltage to drive the loop check the cable table below Low Overspill or Low Loss Systems ILD122 amplifiers are designed for use in combination with Ampetronic Ultra-Low Spill technology. This will require an SP5 phase shifter and an array design Ampetronic can provide designs or guidance for any application. Used to drive an array, two ILD122s can: Minimise spill confines signal to within 1.5m of room, suitable for adjacent rooms e.g. cinemas, classrooms, or confidential rooms Compensate for high losses due to metal structures the only effective solution for high loss environments to meet IEC Maximum Cable Length The ILD122 is designed for SINGLE TURN loops for optimum audio quality: Loops with DC resistance from 0.2 to 1.8Ω Impedance up to a maximum of 2.0Ω Maximum cable length is dependent on cable type and on the application: Applications include Conference facilities Theatres Sports halls Educational environments Confidential rooms Courts Lecture Halls Cable type Maximum Total Cable Length (m) Normal use* Transient speech* 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape * Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies Ampetronic recommends delivery of full current up to 1.2kHz for these applications. Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies ask Ampetronic for more details.

11 ILD122 Product Information Equipment supplied as standard with the ILD122 Handbook and installation instructions 197 x 252mm loop system present sign (deaf logo) Region specific mains cable Loop connector ILD122 optional accessories Ampetronic can supply a range of accessories to meet the specific needs of your installation: INPUTS Power Microphone input Line input Slave I/O OUTPUTS 35W 230V AC nominal, 45-65Hz [120V option available] Power switch and LED indicator on front panel XLR balanced microphone input for Ω microphones; 15dB user selectable gain boost; + 15V DC phantom power (selectable); sensitivity 70dBu; front panel recessed gain control. 6.4mm jack socket balanced line input; sensitivity 30dBu; overload protected; front panel recessed gain control. 6.4mm jack socket insert point for connection of SP5 phase shifter 0dBu signal can be used for recording Input adaptors Installation accessories A range of input adaptors and interface cables to accept most audio source inputs, see table below 18mm x 0.25mm copper tape PVC extrusion to protect copper tape Installation / warning tape to fix cable or tape to a floor Drive voltage 7.1V rms (10V pk ) at maximum current output Drive current 3.5A rms (5A pk ) continuous 1kHz sine waves Short term peaks >7A pk Front panel recessed control Drive current indicated on 4-LED display in 3dB increments Loop connector Wieland ST17/2 (supplied) Wall mount brackets WML-1U Rack mount brackets RM-1U Phase shifter Input adaptors and preamplifiers SP5 for an array system requires a design which can be provided by Ampetronic. By using the appropriate input adaptor or preamplifier the ILD122 will accept multiple additional inputs or audio inputs from other sources: Input type Additional microphone and / or line inputs 100V line input Low impedance speaker line Line Level Unbalanced microphones Standards compliance Adaptor MP221 preamps can drive up to 2 mics + 2 line inputs ATT-UJ & ATT-UX transformer isolated attenuators MAT1 adaptor The ILD122 is CE marked to all relevant safety and EMC standards. All Ampetronic amplifiers can be used to create a system that meets the requirements of IEC118-4 and the relevant recommendation of BS7594, however the design and installation of the system is equally important to meet these Induction Loop standards. Some Ampetronic products are CSA registered for sale in the USA and Canada contact Ampetronic for details. Loop monitor AUDIO SYSTEM Freq. response Distortion Automatic Gain control Metal loss correction Provides access to actual loop current via a 3.5mm stereo headphone connector on front panel 80Hz to 6.5kHz ADDITIONAL FUNCTIONS THD + N<0.2% 1kHz sine at full current The AGC is optimised for speech. Range >36dB Front panel recess input level control Corrects system frequency response due to metal structures in a building. Gain constant at 1kHz, adjustable gain slope from 0 to 3dB per octave. This does not compensate for signal loss from metal structures which can be significant. Fault Three LED fault indicators on the front panel: Monitoring Overload delivering over the rated current Overheat unit is too hot (mutes output signal) Loop error short circuit / open circuit error Ancillary Cooling PHYSICAL Size To supply Ampetronic ancillary units ±15V DC 0.15A power outlet on rear panel Cooling is by natural convection from product casing Half width 1U 19" rack mount Width 215mm Depth 220mm Height 44mm Mounting Freestanding options 1U 19" rack mount (requires additional rack tray) Wall mounting (requires additional brackets) Weight 1.8kg Environment IP20 protection; 20 to 90% relative humidity; 0 to 35ºC sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no ILD122 UP Northern Road, Newark NG24 2ET. United Kingdom

12 Induction Loop Array Systems An induction loop array system provides a solution where a simple loop around the room perimeter will not work. Arrays are the standard solution for buildings with metal structure or reinforcements, or for covering large areas. Arrays can also dramatically decrease the spill of the magnetic signal outside of the room, allowing induction loops to be installed in adjacent rooms, and providing an improved level of confidentiality. Arrays can also be used to change the way two loops interfere with each other, providing ways of solving even the most complex installation problems. Used for: Areas with metal structures: Reducing spill in: Large systems e.g.: Metal tiled flooring Boardrooms Airport terminals Reinforced concrete floors Council chambers Shopping centres Metal suspended ceilings Classrooms / lecture halls Exhibition halls Retractable seating Courtrooms Theatres Benefits of an Ampetronic Array System Even field strength and frequency response in the presence of metal structures Even field strength over very large areas Can reduce spill to 1-2m from the loop edge for adjacent rooms or confidentiality Minimises interactions between complex systems such as theatres with balconies What is an Array System? An Array System consists of two different conductive arrays of cable arranged in a pattern, with the two arrays running the same signal but phase shifted by 90 degrees. This prevents interaction between the two magnetic field patterns allowing creation of very even field coverage with a good loop design. An Array System comprises: Two loop amplifiers A phase shifter (SP5) An array layout design Two arrays of cable or conductive tape Typical equipment is shown in the picture above, and a schematic for an array system is shown on the right. Two loop amplifiers SP5 Phase shifter Two arrays arranged according to a layout design ILD SP5 90 ILD

13 Uses for an Array System 1. Compensating for metal structures Metal present in a building s structure affects an induction loop magnetic field in three ways: Reduced signal strength Poor frequency response, causing loss of higher frequencies Variation in field strength and frequency response over the area The larger the loop, the greater the effect. Perimeter loops can suffer dramatic loss of signal strength, and high frequencies can be lost all together, resulting in a total loss of intelligibility. Even with a mild loss, intelligibility can be poor and often a low signal hole is found in the middle of the loop area. These issues are all corrected by use of an Ampetronic Array System. The narrow loops in the array are much less susceptible to the effects of metal. The phase shift allows two arrays to be superimposed achieving even field strength. Metal losses are hard to predict. For certainty, we recommend a site survey which you can carry out following our instructions, or we can carry out on your behalf. Magnetic field patterns from perimeter loops and arrays Figure 1: the pattern of spill from a square perimeter loop with no metal loss (yellow = good signal, black =<- 40dB). Field spills over 3 times the loop width. Figure 2: a typical pattern for a perimeter loop with metal loss, with a low signal hole in the centre of the loop. This is similar to the pattern for a very large area perimeter loop. Figure 3: the same area - with metal present - using an Array System. Spill is very well controlled and the signal is even across the loop area. 2. Controlling spill A perimeter loop 'spills' magnetic field outside of the loop area by 3 or more times the loop width and similar above and below the loop. If systems are to be used independently in adjacent spaces, or if confidential discussions are taking place this 'spill' must be reduced. Ampetronic Array Systems all exhibit much lower spill than a perimeter loop. Ampetronic can also provide designs for an Ultra-Low Spill system, a special layout which controls the field with great precision. Ultra- Low Spill designs can reduced horizontal spill by 40dB within 1.5m of the loop edge. Ampetronic's sophisticated design software accurately predicts system performance. 3. Interfering loops, large systems etc. There are many other environments where Array Systems can provide a benefit, such as providing even coverage over very large coverage areas, or preventing interactions between loops such as between loops in the stalls and in the balcony of a theatre. An Array System gives the designer much greater control over field distribution, allowing standard-compliant performance in the most difficult installation environments.

14 Loop designs for Array Systems To purchase and use an Array System you must have a suitable loop layout design for the two cable arrays. If you provide a design, Ampetronic will check it for free, otherwise Ampetronic or your distributor can supply a design for a nominal charge. You can carry out your own loop design following Ampetronic guidance (please ask for our loop design guidance notes). An array needs a loop design specific to the area to be installed. It is very important that this loop design takes into consideration: The intended use of the system Structural metalwork near to the system Requirements for low spill performance Dimensions and layout of the area Location for installation of the loop cables Above: Sample of a general layout drawing from a typical Ampetronic design, with extensive installation notes and detailed layout information Cable installation Array Systems usually require installation across, within or under the floor surface, or within a ceiling void. It is important to identify the best location for the installation before completing a loop design. Ampetronic recommends three types of cable for the loop arrays: Tri-rated copper cable Suitable for running along skirting boards, inside conduit, ceiling cavities or behind cosmetic features. Gauges commonly used 2 are 1.0 to 2.5mm. Copper foil tape (FB1.8) Very flat tape designed for running underneath floor coverings e.g. carpet. Very low impedance is ideal for long cable runs and gets more from the amplifier. Supplied by Ampetronic, including plastic conduit and warning tape for installation. Direct burial cable (DBC) Specialist cable resistant to degradation from concrete - suitable for direct burial in screed, underground and outside use. Supplied by Ampetronic. Ampetronic can provide guidance on installation possibilities. You can also consult our guides on designing induction loops, for example the following are suggestions for dealing with stepped areas such as theatre seating: Fixed Seating Note: Follow any dimensions provided as part of a design precisely 1 Wire hidden in step join 2 Wire hidden under step edge Step Mastic Cable Cable clipped under top edge 4 Wire hidden between carpet join 5 Flat copper foil under floorcovering OR Retractable Seating Loop Wires Seats Floorcovering Seats Approx 300mm To next level Note that all tubes/wires between levels are attached to the back edge of the seating levels. This minimises the risk of tubes snagging when the seating is folded. A Seating Extended Approx 300mm Seats Wire in tubing between levels Adhesive Tape Copper foil From Previous level Loop Wires The tubes should be located where there is the least interference with the seating structure. Consultation with the seating manufacturer is recommended. 3 Wire dropped in routed groove B Seating Folded (Wires not shown for clarity) Seats Seats Seats To next level Filled From Previous level Tubes fold back between levels

15 Array System selection Array System product codes Standard With rackmount Amplifers A122 A300 A500 A1000G Combiners A122-RM A300-RM A500-RM A1000G-RM 2 x ILD122 2 x ILD300 2 x ILD500 2 x ILD1000G multiple ILD1000Gs plus ILC4 combiners (customised solution for very large areas) Array System kit contents An Ampetronic Array System contains everything you need for driving an array (cables must be purchased separately). Contents: 2 x ILD Loop Amplifier 1 x SP5 Phase shifter All interconnecting signal / power cables Amplifier handbooks and Array system guide Each array system is also available with an optional rack mount kit; product codes are suffixed with -RM with this kit. Array System capability The Array System that you require will depend upon the design of the loop layouts. It will be important to assess the length (and type) of cable required per array, the size of the array elements and the degree of metal loss anticipated or measured. Consult your distributor or the Ampetronic loop design guidance notes for more information. Approximate area coverage Maximum area m² Combiner systems can drive much larger arrays if required A1000G: Max 1400m2 A500 A122 No metal Combiners A1000G A500 A300 Moderate loss Combiners A1000G A500 High metal loss Combiners A1000G A500 A300 A122 Specifications Amplifiers in kit Amplifier dimensions Rack space for full system (RM version) Balanced inputs Maximum drive current: Minimum loop DC resistance: Typical maximum coverage area m² (square room) Maximum length 2.5mm² cable (per array) Maximum length FB1.8 copper tape (per array) A122 A300 A500 A1000G 2x ILD122 2x ILD300 2x ILD500 2x ILD1000G Width 215mm 215mm 430mm 430mm Depth 220mm 220mm 220mm 220mm Height 44mm 44mm 44mm 44mm Mic Line 2U 2U 3U 3U 1 x XLR 1 x 6.3mm jack 1 x XLR 1 x 6.3mm jack 1 x XLR 1 x 6.3mm jack 1 x XLR 1 x XLR switchable mic / line 1 x 6.3mm jack 3.5A RMS 4.9A RMS 6.4A RMS 9.2A RMS 0.2 ohms 0.2 ohms 0.3 ohms 0.5 ohms No metal Moderate loss High metal loss no-loss current 160m 140m 315m 700m full drive current 100m 65m 110m 175m no-loss current 200m 180m 400m 920m full drive current 130m 85m 145m 230m sales@ampetronic.com phone +44 (0) fax +44 (0) Northern Road, Newark, NG24 2ET. United Kingdom UP

16 Datasheet ILD100 Audio Induction Loop Driver The ILD100 audio induction loop driver is in a class of its own. This compact and stylish unit is capable of driving loop areas in excess of 200m 2 with an unrivalled clarity of sound for superior intelligibility. Based on proven and highly reliable technology it is backed by a full 5 year warranty and free technical support. All connections are plug and socket style for simple quick installation. Configuration VOX switching sets priorities for each input. Twin phono (RCA) inputs provide a simple interface to hi-fi systems and televisions. Available with a range of microphones, interface cables and accessories. Freestanding or wall mounted, the ILD100 is the obvious choice for smaller installations such as video conference rooms, private homes, TV rooms, nursing homes, receptions and waiting rooms. Features Area coverage to >200m 2 Low lifetime cost Excellent proven reliability 5 year warranty Unrivalled intelligibility VOX switching configured to prioritise Mic 1 input Built in tone control Very compact 216 x 124 x 44mm 2 microphone inputs (electret) 1 line input twin phono (RCA) connectors for TV / hi-fi connection Input adaptors and accessories for any audio input requirements, e.g. SCART lead, assorted microphones Free technical support line for advice, design and install Perimeter Loops Area Coverage (maximum) Room aspect ratio 1:1 2:1 3:1 Maximum area m For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required: Loop must be 1-2m above or below the receiver height There should be no metal structures in the plane of the loop Sufficient voltage to drive the loop check the cable table below Maximum Cable Length The ILD100 is designed for SINGLE TURN loops for optimum audio quality. When maximum current output is required the ILD100 can drive: Loops with DC resistance from 0.2 to 0.8Ω Impedance up to a maximum of 0.9Ω When operating below maximum output, the ILD100 can drive longer cable lengths contact Ampetronic for more details. Maximum cable length is dependent on cable type and on the application: Applications include Video conference facilities Meeting rooms Small seminar rooms Television rooms Nursing homes Private homes Receptions and waiting rooms DC version for minibuses, boats, cars etc. Cable type Maximum Total Cable Length (m) Normal use* Transient speech* 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape * Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies Ampetronic recommends delivery of full current up to 1.2kHz for these applications. Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies ask Ampetronic for more details.

17 ILD100 Product Information Equipment supplied as standard with the ILD100 Handbook and installation instructions 99 x 128mm loop system present sign (deaf logo) Region specific mains cable 1 microphone (see options table) 1 SCART to phono cable Ampetronic can supply an extensive range of additional accessories for installation discuss your requirements with our sales team and we will provide materials and equipment to suit your application. Microphone options The ILD100 can be purchased as a stand-alone unit or with microphones. If you require additional options, please contact Support for specification or supply of a microphone to suit your application (Microphones pictured below). INPUTS Power Microphone input Line input OUTPUTS Drive voltage Drive current 15W 230V AC nominal, 45-65Hz 120V and 12V DC options also available Power switch and LED indicator on front panel 2 inputs: 3.5mm mono connector for electret microphones DC powering for electret capsules. (Requires MAT60 adaptor to take XLR balanced microphone input). Front panel recessed gain control 2 x phono (RCA) connectors, impedance 60kΩ each side, 20kΩ differential. Sensitivity matched to SCART signal level. Front panel recessed gain control 3.0V rms (4.2Vpk) at maximum output current. 3.4A rms (4.8A pk ) continuous 1kHz sine wave Short term peaks. 6.5A Front panel recess drive control Front panel LED indicates current peaks Microphones Product code / details Loop connector Lever cable clamp. Tie clip microphone Desktop microphone EM1.2: Diameter 10 x 18mm long, supplied with tie clip (crocodile clip) and 3m cable. EM195A: Footprint 93 x 76mm. Directional microphone for improved sound pickup. Weighted base for stability. Mounted on horizontal or vertical surface (mounting accessories supplied). 3m cable. Boundary microphone Q400: AKG manufactured hypercardioid boundary microphone 43 x 23mm footprint. Can be fixed to any flat surface. 3m cable. Input adaptors and preamplifiers By using the appropriate input adaptor or preamplifier the ILD100 will accept multiple additional inputs or audio inputs from other sources: Input type Balanced dynamic microphone (XLR) Balanced capacitor 15V phantom power microphone (XLR) 100V line input Low impedance speaker line Line Level Standards compliance Adaptor MAT60 MAT V PSU ATT-UJ & ATT-UX transformer isolated attenuators AUDIO SYSTEM Freq. response 80Hz to 6.5kHz Automatic Gain Control Tone control ADDITIONAL FUNCTIONS VOX switching Mobile applications Cooling PHYSICAL Size The AGC is optimised for speech. Dynamic range >36dB Front panel recessed input level control Front panel recessed control To control prioritisation of microphone 1 input. 4 different actions when microphone 1 level is at the onset of compression. Options to attenuate or turn off other inputs when microphone 1 is active, and to turn microphone 1 off when below threshold if required. A DC version is available which provides similar performance for mobile applications, powered from a 12V DC supply. Cooling is by natural convection from the product casing. Width 124mm Depth 216mm Height 44mm Mounting Freestanding options Wall mounting mounting holes provided on rear panel Weight 1.2kg Environment IP20 protection; 20 to 90% relative humidity; 0 to 35ºC The ILD100 is CE marked to all relevant safety and EMC standards. All Ampetronic amplifiers can be used to create a sytem that meets the requirement of IEC118-4 and the relevant recommendation of BS7594. However, the design and installation of the system is equally important to meet these Induction Loop standards. Boundary Microphone Q400 Tie clip Microphone EM1.2 Desktop Microphone EM195A sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no ILD100 UP Northern Road, Newark NG24 2ET. United Kingdom

18 Datasheet CLD1 / CLD1-AC Compact Loop Driver The CLD1 Compact Loop Driver is designed for counter systems and small area perimeter loop systems. Measuring only 128 x 74 x 35mm and with an output current of 2.4Arms, the CLD1 is the smallest and highest performance amplifier in it s class. Designed and built to Ampetronic s high standards of reliability, backed with a 5 year warranty and Ampetronic support, the CLD1 offers certainty of performance and the lowest lifetime cost available. Audio quality is ensured with metal loss correction (MLC) combined with Ampetronic s usual high standards of design. The CLD1 is designed for flexibility and convenience, featuring 2 separate microphone inputs with independent level controls, one of which can be configured as a line input. All cable connections are made on a single face of the unit, adding flexibility and further simplifying installation. Features Low lifetime cost 5 Year warranty Very compact Choice of microphone and pre-formed loop in counter kit 2 independent inputs featuring 1 mic input and 1 switchable mic/line input Metal loss compensation All connections to a single face for installation convenience 12V DC or external AC power pack supplied as standard. CLD1-AC has integral power supply Free technical support Applications include Ticket and service counters Retail counters Information kiosks Reception desks Interview rooms Small meeting rooms Taxis and private cars Boundary Microphone Q400 Tie Clip Microphone EM-1.2 Counter Loops When supplied as a counter loop kit, the CLD1 comes with choice of microphone, a multi-turn preformed loop, power supply and simple installation instructions. The loop should be mounted vertically in accordance with the installation instructions. Other installation methods are also available. The CLD1 in this application will project a field to the requirements of IEC approximately 1m from the preformed loop. Perimeter Loops Area Coverage (maximum) The CLD1 is designed for small perimeter loop applications in rooms or in vehicles. Coverage with a single turn loop: Room aspect ratio 1:1 2:1 3:1 Maximum area coverage m The loop is 1-2m above or below the receiver height There are no metal structures in the plane of the loop There is sufficient voltage to drive the cable length check table below. The CLD1 is DC powered making it ideal for use in small vehicles such as taxis, private cars and small boats. We recommend a multi-turn loop in the headlining of the vehicle cabin contact Ampetronic for an application guide. Maximum Cable Length With maximum current output the CLD1 can drive: Loops with DC resistance from 0.3 to 1.0Ω Impedance up to a maximum of 1.3Ω When operating below maximum output, the CLD1 can drive longer cable lengths contact Ampetronic for more details. Maximum cable length is dependent on cable type and on the application. Cable type Maximum Cable Length (m) 0.75mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape 101 Desktop Microphone EM195A

19 CLD1 Product Information Ordering Information The CLD1 compact loop driver can be ordered as a stand alone loop driver or as part of a kit for a specific application. Counter loop kits comprise 1 x CLD1, 1 x preformed loop, 1 x microphone (choice), 1 x loop present sign, 1 x installation guide and 1 x power supply (region specific). The CLD1 is also available with an integral V power supply, part number CLD1-AC. Product Description Product Code Product Code External PSU Internal PSU Compact loop driver CLD1 CLD/AC Counter loop kit + boundary microphone CLD1/CB CLD1/AC/CB Counter loop kit + tie clip microphone CLD1/CT CLD1/AC/CT Counter loop kit + desktop microphone CLD1/CD CLD1/AC/CD Input adaptors and preamplifiers INPUTS Power AC Power adapter Input 1 Input 2 OUTPUTS Drive voltage 12V 1.0A max. Fuse fitted to PCB, type T 1.6A L Green LED Power indicator. All integral V AC (CLD1/AC) 18W max. Regional plug also available Microphone input Suitable for unbalanced electret microphone 3.5mm mono jack socket Input impedance 8kΩ. 6v bias via 10kΩ source Sensitivity -60dBu for max output Overload level -14dBu. Recessed control on front panel Switchable line / microphone Recessed switch on connector panel Microphone as for input 1 Line input: Input impedance 820kΩ Sensitivity -20dBu for max output Overload: >+20dBu. >3.2V rms >4.5V pk at maximum output current By using the appropriate adaptor or preamplifier, the CLD1 can be used with inputs from other sources: Input type Balanced dynamic mic (XLR) Balanced capacitor phantom Power mic (XLR) 100V line input Low impedance speaker line Line Level Adaptor required MAT60 MAT60DC + PSU ATT-UJ & ATT-UX transformer isolated attenuators Drive current 2.4A rms 3.4A pk continuous 1kHz sine wave Short term peak >4.8A pk LED indicator on front panel Loop resistance 0.3Ω to 1.0Ω resistive or <1.3Ω maximum reactive impedance Loop connector Vibration proof clamps, accept 0.5 to 1.3mm 2 AUDIO SYSTEM Frequency response 80Hz to 6.3kHz ±1.5dB Standards compliance The CLD1 is CE marked to all relevant safety and EMC standards The CLD1 will meet the requirements of IEC and the relevant recommendations of BS7594 if specified and installed according to Ampetronic s instructions Automatic gain control Metal loss correction PHYSICAL Cooling Dimensions Weight AGC optimised for speech Dynamic range >36dB Green LED indicator on front panel 0 to 4.5dB/octave Recessed control on front panel Natural convection 128mm, 74mm, 35mm 280g (CLD1), 400g (CLD1 AC) Environment IP20 : 20 to 90% relative humidity, -20ºC to 50ºC Mounting Horizontal or vertical panel or wall mount, with 2 screw fixings CLD1-AC with integral power supply sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

20 Datasheet CLS1 The Ampetronic CLS1is the first in a series of induction loop drivers aimed at the demands of the electrical and audio-visual contractor. Designed for simple discrete installation, the CLS1 offers the most cost effective and capable solution in its class. The amplifier is very compact and designed specifically for wall mounting. All connections and controls are secured behind a tamper resistant, hinged, detachable cover. Combined with its small size, the range of mounting and cabling options ensure that installation is convenient and tidy in any environment. Input options are comprehensive, with three independent inputs for balanced microphone, balanced and unbalanced line, low impedance and 100V - line speaker systems. Backed up by Ampetronic s standard 5 year warranty and comprehensive support services, the CLS1 is truly fit and forget. Features Quick and simple to install Area coverage to >200m 2 3 independent configurable inputs Wall mounted Metal Loss Correction 5 Year warranty Cabling and controls behind tamper resistant cover Free Technical support Applications include Community Centres Board rooms Churches Interview rooms Meeting rooms Classrooms Perimeter Loops Area Coverage (maximum) Room aspect ratio 1:1 2:1 3:1 Maximum area m For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required: Loop must be 1-2m above or below the receiver height There should be no metal structures in the plane of the loop Sufficient voltage to drive the loop check the cable table below Maximum Cable Length The CLS1 is designed for SINGLE TURN loops for optimum audio quality: Loops with DC resistance from 0.2Ω Impedance up to a maximum of 1.8Ω Maximum cable length is dependent on cable type and on the application: Cable type Maximum Total Cable Length (m) Normal use Transient speech 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape

21 CLS1 Product Information The CLS1 enclosure is designed for simple, permanent installation, with secure lid protecting connections and controls, while leaving operation indicators visible. The case is designed to make access simple, and to ensure the amplifier can be installed in the most constrained spaces. Mounting Designed for vertical panel mounting using 4 screws (6 holes provided). Template for screw placements provided. The CLS1 is compact enough to fit on a 1U rack tray with feet removed. Enclosure access Hinged lid, secured by 2 Phillips PH2 screws. Lid can be removed completely if required, for ease of access, or if there is no room to hinge the lid forwards. Cable routing Knock-outs (diameter 20mm) are provided for routing cables into the enclosure. 2 on the top edge, 4 on the rear face, 4 on the bottom edge, providing excellent installation flexibility. Cable connections INPUTS Input 1 Input 2 Input 3 AC power input supply Input fuse OUTPUTS Balanced Mic, balanced or unbalanced line Input impedance 10kΩ per side Min level (MIC / Line -73dBu / -31dBu Max level (MIC / Line) -37dBu / +5dBu Phantom voltage MIC only +12V Balanced or unbalanced line, expansion port Input impedance 1MΩ per channel Min level -33dBu Max level +3dBu Isolated 100V line or low impedance mono or stereo speaker Input impedance 100V Line / spkr 120kΩ / 7.8kΩ Min level 100V Line / spkr +14dBu / -9dBu Max level 100V Line / spkr >+47dBu / >+27dBu 230V 30W 45-65Hz 110V option available Connected via chassis mounted screw terminal block T250mA All input cable connections are made with screw terminals mounted on one side of the PCB. Mains power connections are made to a chassis mounted screw terminal block. Loop connection is made to a screw terminal pair mounted on the PCB. Cable connections are illustrated on a detailed label on the case interior. Indicators Drive voltage Drive Current Minimum Loop Resistance 0.2Ω Maximum Loop Impedance 1.5Ω >6.4V rms - 9.0V pk Continuous 1kHz sine wave >3.3A rms 5.0Apk Short term peaks >5A rms 7A pk 3 LED indicators are visible with the case open or closed: AGC Amber LED lit when input signal is activating the automatic gain control Current Green LED lit when current is running in the loop Power Green LED lit when the unit has power Controls Five controls are located to be accessed only with the lid open, all screwdriver adjustable. Level controls for inputs 1, 2 and 3 Metal loss correction Loop drive current AUDIO SYSTEM Freq. response Distortion Automatic Gain Control Metal loss correction PHYSICAL Size Environment Dimensions Weight Mounting Frequency Response 80Hz to 6.3kHz ±3dB THD+N <0.5%1kHz sine at 1.66A rms (AGC) Optmised for speech. Dynamic range >36dB (MLC) 0 to 3dB per octave frequency correction (1kHz remains constant). Control mounted on PCB. Cooling Natural convection IP20, -10ºC to +40ºC W, H, D: 200mm, 200mm, 44mm 1.8kg Wall mounting, secured by 4 screws Standards Compliance The CLS1 is CE marked to all relevant safety and EMC standards, including EN60065 and EN Safe operation is subject to correct installation. The CLS1 will meet the requirements of IEC and the relevant recommendations of BS7594 if specified and installed correctly. sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

22 Datasheet CLS2 The Ampetronic CLS2 is the second unit in a series of induction loop drivers aimed at the demands of the electrical and audio-visual contractor. Designed for simple discreet installation, the CLS2 is the most capable driver in its class. The amplifier is very compact, yet the most powerful unit available designed specifically for wall mounting. All connections and controls are secured behind a tamper resistant, hinged, detachable cover. Combined with its small size, the range of mounting and cabling options ensure that installation is convenient and tidy in any environment. Input options are extensive, with four independent inputs for balanced microphone, balanced and unbalanced line, low impedance and 100V - line speaker systems, plus priority alarm, doorbell or telephone connections. Backed by Ampetronic s standard 5 year warranty and comprehensive support services, the CLS2 is truly fit and forget. Features Quick and simple to install Area coverage to >400m 2 Highest power Loops driver in class 4 independent configurable inputs Wall mounted Metal Loss Correction 5 Year warranty Cabling and controls behind tamper resistant cover 2 Priority alarm inputs Free Technical support Applications include Community Centres Board rooms Churches Interview rooms Meeting rooms Classrooms Perimeter Loops Area Coverage (maximum) Room aspect ratio 1:1 2:1 3:1 Maximum area m For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required: Loop must be 1-2m above or below the receiver height There should be no metal structures in the plane of the loop Sufficient voltage to drive the loop check the cable table below Maximum Cable Length The CLS2 is designed for SINGLE TURN loops for optimum audio quality: Loops with DC resistance from 0.2Ω Impedance up to a maximum of 1.3Ω Maximum cable length is dependent on cable type and on the application: Cable type Maximum Total Cable Length (m) Normal use Transient speech 1.0mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape

23 CLS2 Product Information The CLS2 enclosure is designed for simple, permanent installation, with secure lid protecting connections and controls, while leaving operation indicators visible. The case is designed to make access simple, and to ensure the amplifier can be installed in the most constrained spaces. Mounting Designed for vertical panel mounting using 4 screws (6 holes provided). Template for screw placements provided. The CLS2 is compact enough to fit on a 1U rack tray with feet removed. Enclosure access Hinged lid, secured by 2 Phillips PH2 screws. Lid can be removed completely if required, for ease of access, or if there is no room to hinge the lid forwards. Cable routing Knock-outs (diameter 20mm) are provided for routing cables into the enclosure. 2 on the top edge, 4 on the rear face, 4 on the bottom edge, providing excellent installation flexibility. Cable connections All input cable connections are made with screw terminals mounted on one side of the PCB. Mains power connections are made to a chassis mounted screw terminal block. Loop connection is made to a screw terminal pair mounted on the PCB. Cable connections are illustrated on a detailed label on the case interior. Indicators 3 LED indicators are visible with the case open or closed: AGC Amber LED lit when input signal is activating the automatic gain control Current Green LED lit when current is running in the loop Power Green LED lit when the unit has power Controls Five controls are located to be accessed only with the lid open, all screwdriver adjustable. Level controls for inputs 1, 2, 3 and 4 Metal loss correction Loop drive current INPUTS Input 1 Input 2 Input 3 Input 4 Alert 1 Alert 2 AC power input supply Input fuse OUTPUTS Drive voltage Drive Current Input 1 Balanced Mic, balanced or unbalanced line Input impedance 10kΩ per side Min level (MIC / Line -73dBu / -31dBu Max level (MIC / Line) -37dBu / +5dBu Phantom voltage MIC only +12V As Input 1 mic level Balanced mic Input impedance 10kΩ per side Min level -73dBu Max level -37dBu Phantom voltage +12V Balanced or unbalanced line, expansion port Input impedance 1MΩ per channel Min level -33dBu Max level +3dBu Isolated 100V line or low impedance mono or stereo speaker Input impedance 100V Line / spkr 120kΩ / 7.8kΩ Min level 100V Line / spkr +14dBu / -9dBu Max level 100V Line / spkr >+47dBu / >+27dBu When energised, turns down the other inputs and produces a 520Hz square wave tone on the loop. Min / max input voltage 5V- 24V ac/dc A pair of contacts which when shorted turns down the other inputs and produce a pulsed 520Hz square wave tone on the loop. 230V 30Ws 45-65Hz 110V option available Connected via chassis mounted screw terminal block T250mA Minimum Loop Resistance 0.2Ω Maximum Loop Impedance 1.3Ω AUDIO SYSTEM Frequency Response Distortion >6.4V rms - 9.0V pk Continuous 1kHz sine wave >4.6A rms 7.0A pk Short term peaks >7A RMS 10A pk 80Hz to 6.3kHz ±3dB THD+N <0.5%1kHz sine at 2.33A rms Automatic Gain Control Metal loss correction (AGC) Optmised for speech. Dynamic range >36dB (MLC) 0 to 3dB per octave frequency correction (1kHz remains constant). Control mounted on PCB. PHYSICAL Cooling Environment Dimensions Weight Mounting Natural convection IP20, -10 C to +40 C W, H, D: 200mm, 200mm, 44mm 1.8kg Wall mounting, secured by 4 screws Standards Compliance The CLS1 is CE marked to all relevant safety and EMC standards, including EN60065 and EN Safe operation is subject to correct installation. The CLS1 will meet the requirements of IEC and the relevant recommendations of BS7594 if specified and installed correctly. sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

24 Datasheet XA88 Audio Induction Loop Driver The XA88 is a specialist Audio Induction Loop driver designed for use on rail and other transport vehicles. The unit is designed for the OEM and vehicle engineering customer, to be integrated into public address and passenger communication systems on board the vehicle. It is backed by Ampetronic s 5-year warranty and experienced specialist technical support. The unit has two balanced transformer-isolated inputs (for connection to line-level sources or intercom/pa speaker systems), and provides superior sound quality with metal loss frequency response correction. The XA88 meets EMC and environmental standards for use on rail vehicles. With power supply options to suit many common rail and commercial vehicle power systems, and remote enable interfaces for more complex applications, it is the obvious choice for any quality on-board audio system that requires an Audio Induction Loop. N.B. The XA88 rail and transport solution requires a detailed application review by Ampetronic to ensure compatibility with vehicle design for optimum operation. Typical Loop Installation In a rail vehicle or bus, the floor, walls, and roof are all usually metal. Features Area coverage (no metal) >300m 2 Area coverage (metal vehicles) 25m 2-100m 2 Depending upon metal & loop location To keep away from metal sheets near the plane of the loop (and thereby minimise loss of energy), it is most common to place the loop around the upper part of the wall, typically 1.8m to 2m above floor level. This is usually some 300mm below the roof height. The best location will depend on the exact vehicle design. Low lifetime cost Excellent reliability 5 year warranty Simple integration Power supply options Common transport supplies: 24VDC, 110VDC, others possible 2 transformer isolated inputs for direct intercom or PA line connection or 0dBu line input Metal loss correction Variable up to 4dB / octave Unrivalled intelligibility Free remote technical support Applications include Metro Systems National and Regional Railways Trams & Light Rail (LRVs) Buses & Coaches Metal Loss Most transport vehicles have metal construction - the bodyshell is usually metal panels with frames and structural supports. Although the interior may use non-metal panels, an induction loop installed inside such a vehicle will experience significant loss of energy and changed frequency response. The XA88 has sufficient loop drive capacity to overcome the loss of loop signal in most cases. The unit s metal loss compensation will correct the frequency response up to 4dB/octave slope. System Testing Each vehicle design has a different metal construction, and so the metal loss will be different. The only reliable way to determine the metal loss - which determines the loop current - is to measure the performance of a trial loop installation in the same or a very similar design of vehicle. Ampetronic can provide site survey services to help you conduct a trial installation and effectively measure the proposed system s performance. We can also provide a package of project services, carrying out commissioning or troubleshooting as required. Measurement instruments are available to help you or your customer to regularly test the installed loop s performance.

25 XA88 Product Information Power Options XA88-24DC Nominal voltage Voltage range Coupling Overcurrent Protection Power Consumption XA88-110DC Nominal voltage: Voltage range: Coupling: Overcurrent Protection: Power Consumption: Input Details 24V DC V DC Direct - no power converter Internal replaceable fuse, T 4A L 61W (2.54 A) continuous audio 6W (0.25 A) quiescent 150W (6.25 A) short-term peak (at full 1kHz sine output) 110V DC V DC Isolated - uses power converter Current foldback in power converter & non-replaceable 5A fuse in converter 70W (0.64 A) continuous audio 10W (0.09 A) quiescent 150W (1.36 A) short-term peak (at full 1kHz sine output) Input 1 Low level High Level Input Impedance: 3.6kΩ 120kΩ Sensitivity: -16dBu (130mV rms) +15dBu (4.2V rms) Overload: > +19dBu (7.3V rms) > +49dBu (236V rms) Input 2 Low level High Level Input Impedance: 3.6kΩ 36kΩ Sensitivity: -16dBu (130mV rms) + 4dBu (1.3V rms) Overload: > +19dBu (7.3V rms) > +39dBu (73V rms) Input 3 Connectors Optional - not normally fitted. Details to customer requirement The XA88 uses MIL-C-5015 connectors for proven reliability. CON 1 Signal Inputs 10-pin 18-1 insert CON 2 Enable & Status 6-pin 14S-6 insert CON 3 Power in & Loop out 4-pin 14S-2 insert Chassis connectors on the unit are pins in a male shell. Standards Compliance Safety, EMC The XA88 is CE marked to indicate compliance with relevant EC product safety and EMC standards. Compliance includes EN60065:2002, EN50155:2001, EN61373:1999, EN :2006. Loop Performance The XA88 will enable an Audio Frequency Induction Loop system that meets the requirements of EN :2006 to be created, if the system is specified, installed and commissioned in an appropriate manner, including observing Ampetronic instructions. INPUTS Power Supply Safety Ground Options for 24V or 110V DC (other voltages possible) - see details on left Indication: LED on front panel Connector: MIL-C-5015 (2 pins of CON3) M6 chassis stud (nut & star washer supplied) Signal Inputs Quantity: 2 (3 to special order - ask for details) Typical Source: Intercom / PA line - see details on left for levels Format: Balanced, transformer isolated 1500V Level selection: In connector, by alternate pin choice Adjustment: Front Panel control, per channel Connector: MIL-C-5015 (10 pins, CON1) Enable Inputs Quantity: one per input Format: Opto-isolated 1500V from internal circuits (enables have common external reference) Level: 5-24V DC enables relevant input. Input load: 3.4mA@5V, 16mA@24VDC Connector: MIL-C-5015 (4 pins of CON2) Indication: LED per channel on front panel OUTPUTS Loop Output Includes configurable output transformer. Values shown at 1.67:1 ratio Voltage: 7.1Vrms (11Vpk) at max. drive current Current (max): > 11Arms (15.5Apk) with 1kHz sine Current (short term): 21Apk absolute max Current Adjustment: Front panel control Current Indication: LED on front panel Connector: MIL-C-5015 (2 pins of CON3) Loop Impedance Up to 0.49Ω reactive at 1.6kHz, with transformer ratio 1.67:1 Monitor/Status Isolated contact, closed when power present & no fault Isolation: 1000V AC 50/60Hz Contact rating: 1.25A 24V DC or 0.4A 125V AC Connector: MIL-C-5015 (2 pins of CON2) Protection Thermal: Heatsink 90 to 125 C: output reduces by up to 3dB Heatsink >125 C: output muted. Amp Fault LED Illuminated * Output DC Offset: Isolates output if >±0.7 Amp - Fault LED Illuminated * Output clipping: If continuous, Loop Fault LED illuminated * Status relay: Contact opens when any item marked * is detected or power fails. AUDIO SPECIFICATION Freq. Response 100Hz to 5kHz ±1.5dB relative to 1kHz at -12dB re: max output, measured as loop current with no metal loss correction. Compression Response optimised for speech Dynamic range: >30dB input, ±1dB output over input range Control: By adjusting input level/gain Indication: LED on front panel Attack / Decay: 7ms / >1s Accessories Mounting Bracket or Tray A mounting can be supplied for the XA88 in your project, subject to agreement of a suitable design. Previous projects have used a rack tray or an asymmetric bracket arrangement to match the available mounting space. Please contact Ampetronic to discuss the options. Connectors Mating MIL-C-5015 style connectors can be supplied as an optional part. Please contact Ampetronic for further details. If you require accessories not shown here, please contact Ampetronic to discuss your requirements. Metal Loss PHYSICAL Dimensions Weight Construction 0dB to 4dB / octave boost Correction: Adjusted on front panel control Width 251mm, depth 320mm, height 89mm excluding connectors 5kg Aluminium, powder coated. IP43 when mounted correctly, IP65 option available. <95% relative humidity, -25 C to +55 C (EN50155 T1) Installed unit should be mounted where the heat of normal operation can be dissipated by airflow through the rear heatsink. sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

26 Datasheet HLS02 Audio Induction Loop Driver The HLS02 is a small area coverage audio induction loop driver built for the O.E.M. customer for integration into communication systems such as help points, refuge points, car park barriers and drive throughs. It is backed by Amptronic s 5 year warranty and free technical support. With 2 independent balanced transformer isolated inputs (low impedance speaker and 100V line), superior sound clarity, metal loss correction and a range of power supply voltage options, it is the obvious choice for any quality intercom system. N.B. The HLS02 solution may require a detailed application review by Ampetronic to ensure optimum operation in your application. Features Area coverage to >35m 2 Low lifetime cost Excellent reliability 5 year warranty Simple integration Power supply options 12V to 18V DC or 36V to 60V DC 2 transformer isolated inputs 100V line and low impedance speaker Metal loss correction 3dB / octave Unrivalled intelligibility Free technical support Also available as PCB only Applications include: Intercom systems for all environments: - Help points - Door entry systems - Car parks - Security barriers - Drive throughs - Refuge points - Toll booths Information points Interactive exhibits Counter and other vertically mounted loops The HLS02 can be used to drive small multi-turn counter style loops. These offer limited area coverage, up to approximately 1m distance from the loop. However, they are often a simple solution for installation. Ampetronic can provide a standard preformed loop, or a loop can be custom designed for your application. Consult our support team for more information. Perimeter Loops Area Coverage (maximum) The HLS02 can be used to cover a small area using a perimeter loop in which case, a single turn loop should usually be used, contact Ampetronic for advice if unsure. Room aspect ratio 1:1 2:1 3:1 Maximum area m Maximum Cable Length When maximum current output is required the HLS02 can drive: Loops with DC resistance from 0.3 to 1Ω Impedance up to a maximum of 1.5Ω Maximum cable length is dependent on cable type and on the application. When operating below maximum output, the HLS02 can drive longer cable lengths contact Ampetronic for more details. Cable type Maximum Total Cable Length (m) Normal use* Transient speech* 1.0 mm 2 copper mm 2 copper mm 2 copper mm 2 flat copper tape * Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies Ampetronic recommends delivery of full current up to 1.2kHz for these applications. Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do deliver sufficient voltage to reproduce critical high frequencies ask Ampetronic for more details.

27 HLS02 Product Information Power Options The HLS02 is supplied in 2 DC voltage versions HLS02-15 INPUTS Power Input 1 Low Z Speaker 'Power' LED on control panel Two DC supply options (see left) Input impedance: 5 kω differential Sensitivity: -20dBu (78mV rms ) for full output Overload: >+19dBu (6.8V rms ) adjustment made on control panel Connector: Detachable screw terminals with input blocks Nominal supply Voltage Voltage range Fuse Power consumption Nominal current Quiescent current Peak current (2.1A rms audio) 15V DC 12-18V DC T1.6A L 9 W 550mA 60mA 1100mA Input 2 100V line PA OUTPUTS Input impedance: 136kΩ Sensitivity +23dBu (11V rms ) for full output Overload: >+48dBu (190V rms ) Adjustment made on control panel Connector: Detachable screw terminals with input blocks HLS02-48 Nominal supply Voltage Voltage range Fuse Power consumption Nominal current Quiescent current Peak current (2.1A rms audio) Standards compliance 48V DC 36-60V DC T630mA L 9W 180mA 30mA 360mA Drive voltage 4.5V peak at max drive current Drive current >3A peak into 1Ω with 1kHz sine Adjusted on control panel LED indicator on control panel Loop connector Detachable screw terminals with input blocks Loop impedance 0.3Ω to 1Ω resistive 1.3Ω reactive at 1.6kHz Monitor Dry isolated contact (1500V isolation). Closed when amplifier functional. Silver alloy contact rating: 3A 30V DC or 3A 125V AC The HLS02 is CE marked to all relevant safety and EMC standards. The HLS02 will meet the requirements of IEC118-4 and the relevant recommendations of BS7594 if specified and installed according to Ampetronic instructions. AUDIO SYSTEM Freq. response 80Hz to 5.5kHz ± 1.5dB relative to 1kHz at low level, measured as loop current with no metal loss correction. Automatic Gain Control AGC optmised for speech Dynamic range 40dB Controlled by adjusting input level LED indicator on front panel Metal Loss Correction 0dB to 4dB / octave boost Adjusted on control panel PHYSICAL Dimensions Weight Environment width 107mm, length 160mm, height 45mm 333g IP10 : 20 to 90% relative humidity, -30 to 75 C Installed unit must have sufficient heat sink through enclosure to dissipate the nominal power. HLS02-15P PCB only amplifier sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no HLS02-UP Northern Road, Newark NG24 2ET. United Kingdom

28 Datasheet ILD15 Lift Loop Driver The ILD15 audio induction loop driver is a rugged amplifier primarily for lift applications or other rugged industrial environments. Correctly installed it will provide full area coverage in most lifts to IEC The amplifier is constructed of a very robust steel housing, with vibration isolating connections and mountings to protect electronic connections, and is further protected by a 5 year warranty from Ampetronic. The amplifier has 2 independently controlled transformer isolated inputs. The audio system is designed for excellent intelligibility and includes metal loss frequency compensation to correct for the metal structure of the lift car. Battery backup is available as an integral option if required. The magnetic field strength and distribution in a lift car will be highly dependent on installation method and the construction of the lift car. It is strongly recommended that you contact Ampetronic for free Recommended installation full area coverage / perimeter loop technical support and advice on The ILD15 is designed to provide full area coverage of the lift car by the best methodology and design driving a single turn loop around the perimeter of the lift car positioned for your specific application. at ceiling height. The loop must be placed inside the lift car behind non-metallic trim. The loop must not be behind metal panels or inside a N.B. The ILD15 solution may metal enclosure in the roof space as this normally causes unacceptable require a detailed application reduction and distortion of the magnetic field. review by Ampetronic to ensure optimum operation in your There are two standard options for the loop itself: application. LOOP BARS - The most robust solution is to attach custom built stainless steel loop bars to the ceiling inside the lift. Loop bars can be custom designed and supplied by Ampetronic to fit your specific requirements. Loop bars provide a robust and aesthetically pleasing solution with excellent performance. Features Robust industrial housing and vibration protection 5 year warranty 2 transformer isolated inputs (low impedance speaker line and 100V line options) Metal loss correction Battery backup option Free support and installation advice Full area coverage to IEC LOOP CABLE - In some lifts it is possible to fit a single coil of 2.5 mm2 loop cable inside the lift behind non-metallic trim, or in rare cases inside the roof space if non-metallic. Localised area coverage installation Where an area coverage loop can not be installed, the ILD15 can be used to drive a smaller loop placed on or inside non-metallic wall panels or trim (for this type of application it is also possible to use other lower cost Ampetronic amplifiers if the high level of robustness and battery backup of the ILD15 is not required). This style of installation restricts the useful magnetic field to an area no more than 1m from the loop coil, making such a small loop ineffective for large lifts and for use with a Public Address system or for safety communications such as a Voice Evacuation System. Installation behind a metal panel or metal trim will rarely produce an effective magnetic field with any amplification method. Please contact Ampetronic for detailed guidance on the best installation method for your lift car or industrial environment.

29 ILD15 Product Information Power Options The ILD15 can be supplied with or without an integral battery back up system. 230V Option Nominal supply voltage Fuse Supply current (max) 230 V Hz T 100 ma L 83 ma Supply current (quiescent) 70 ma 115V Option INPUTS Two input options are available. Standard version: 1 x low Z, 1 x 100 V line input Low level version: 2 x low Z input Low Z speaker Input impedance: 5kΩ differential input Sensitivity: -20 dbu (78 mv rms ) for full output Overload: >+19 dbu (6.8 V rms ) adjustment made on control panel under lid Isolation : 1500V 100V line PA input Input impedance: 136 kω Sensitivity +23 dbu (11 V rms ) for full output Overload: >+48 dbu (190 V rms ) adjustment made on control panel Isolation : 1500 V Nominal supply voltage 115 V Hz OUTPUTS Fuse T 200 ma L Drive voltage 1.5 V peak at max drive current Supply current (max) 166 ma Supply current (quiescent) 140 ma Battery backup The ILD15 can be ordered with battery backup (ILD15BB) or without (ILD15NB). Drive current >9 A peak with 1 khz sine Adjusted on control panel under lid LED indicator on control panel Loop connector Vibration proof terminal blocks AUDIO SYSTEM Battery capacity Battery life Power indicator Charging Accessories Loop Bars 2 Ah 12 V 12 hours standby plus 30 minutes full power speech operation LED inside unit indicates power status Custom charging circuit to optimise battery life 2 or 4 bar loop assemblies built to fit the lift and can be finished in the same colour as lift Interior. Freq. response 80 Hz to 5 khz ± 1.5 db relative to 1 khz at low level, measured as loop current with no metal loss correction. Automatic Gain Control Metal Loss Correction PHYSICAL Cooling Dimensions AGC optimised for speech Dynamic range 40 db LED indicator on front panel inside lid 0 db to 3 db / octave boost Adjusted on control panel inside lid Convection cooled width 190 mm, length 255 mm, height 90 mm Standards compliance The ILD15NB and ILD15BB are CE marked to all relevant safety and EMC standards. The ILD15NB and ILD15BB will meet the requirements of IEC and the relevant recommendations of BS7594 if specified and installed according to Ampetronic s instructions. Weight Environment ILD15NB: 3 kg ILD15BB: 3.8 kg IP43: 0 to 90% relative humidity, -30 to 75 C ILD15 with battery backup sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

30 Datasheet FSM - Field Strength Meter (IEC ) The FSM is a cost effective and simple solution for measuring, setting up and commissioning an induction loop system to the requirements of IEC :2006. The meter is an ergonomically designed hand held instrument for measuring loop system performance. There are three calibrated operational modes for the assessment of Background Noise, Field Strength and Frequency Response as required to ensure correct function of the loop system. The meter also doubles as a loop listener, with a headphone output to listen to the signal in the loop. The meter is supplied in a soft case with an audio CD with the required test signals, and full operating instructions including a guide to commissioning. The Ampetronic FSM can be used to monitor, set up or commission any induction loop system regardless of the manufacturer or type. Features Simple assessment of any system to IEC :2006 Three modes of operation for three test types A-Weighted background noise Broad band mode (50Hz - 8kHz) Frequency response (100Hz, 1kHz, 5kHz) True RMS detection calibrated to 400mA/m = 0dB Wide viewing angle LED display Colour coded LEDs for simple readout Resolution to 1dB Head phone output with volume control Ergonomic, rugged, light weight construction Test signals supplied on CD Soft carry case 5 year warranty Applications include Accurate set-up and commissioning System monitoring and maintenance Site surveys Certification to IEC :2006 Assessment of frequency losses due to metal Assessment of loop coverage and overspill Assessment of background noise Operational modes Background Noise To determine the level of the background magnetic field present in the intended location for the loop system. Also used to measure low level signals to assess overspill outside a loop system. A-Weighted filter True RMS detection referenced to 400mA/m Scale -42 to -12dB Audio (headphone) output is post filter for monitoring Field Strength A broad band measurement to measure field strength delivered by the system. Broad band measurement 50Hz to 8kHz True RMS detection referenced to 400 ma/m Scale -22 to +8dB with 1dB intervals from -3 to +6dB Suitable for use with sine wave, pink noise, or combination signals (provided), or any other real signals Frequency Response Third octave filters for measuring performance across the required frequency spectrum as required by IEC Used to confirm adequate power at high frequencies as required for good intelligibility. Used to assess frequency dependent loss due to metal structures, and to optimise frequency compensation. Third octave bands at 100Hz, 1kHz and 5kHz True RMS detection Scale resolution to 1dB For use with pink noise only (signal provided) Audio (headphone) output is post filter

31 Commissioning Procedure The FSM allows a complete test of an induction loop system to be performed with a simple six or seven step procedure as shown in the table below. Using the FSM with the CD of test signals (included), all aspects of an installation can be examined and adjusted to meet the requirements. A Certificate of Conformity (template included) is provided to record test results from this procedure, and to certify that the installation meets the requirements of IEC :2006. Step Audio Input FSM settings Adjustments Performance requirements 1 Volume of use SYSTEM OFF METER off n/a Determine test area Sketch Layout 2 Background Noise SYSTEM OFF Sources of magnetic noise <22dB essential <32dB acceptable 3 Field Strength (1) Track: 1 COMBINATION* Loop current -3 to +3dB peaks 4 Frequency Response Track: 2 PINK NOISE 5kHz 1kHz 100khz MLC / tone control -3 to +3dB peaks compared to 1kHz 5 Field Strength (2) Track: 1 COMBINATION* Loop current -3 to +3dB peaks 6 Overspill (if required) Track: 1 COMBINATION n/a <42dB (OFF SCALE) 7 System use ACTUAL SIGNALS Input gain -9 to 0dB peaks Subjective - >OK * Other signals may be used with revised performance requirements: PINK NOISE -9 to -3dB, 1kHz SINE -3 to +3dB Accessories Soft carry pouch User guide/handbook Commissioning Certificate (template) Designing Induction Loops handbook Batteries CD of Test Signals 3 different test signals are provided on CD to enable the set up of any induction loop system. Tracklist Combination: Pink noise with 1kHz sine wave bursts (30 mins) Pink noise (30 mins) Sine wave (1 min) Accessories Set of cables to easily interface audio inputs to loop systems Order code SCC Standards Compliance The FSM field strength meter and loop receiver is CE marked to all relevant safety and EMC standards Magnetic field measurement Coil orientation: Vertical when unit held upright Reference level: 400mA/m (In Field strength mode) Frequency response 50Hz to 8kHz ±0.25dB 30Hz to 10kHz -3dB Gain stability: Better than 0.5dB over all conditions Outputs Display: Flying spot LED bar graph with wide viewing angle Colour coded (green for -3dB to +3dB) Audio (headphone): 16Ω min (32Ω per side) 3.5mm stereo jack connector Power Battery: 2 x AA alkaline (supplied) Battery monitor: Battery OK when LED illuminated Battery life: Up to 100hrs use, dependent on use pattern Physical Dimension: 84 x 27 x 140mm (meter only) Weight: 150g excluding batteries Operating environment: -10 to +45 C 10 to 85% RH sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

32 Datasheet ILR3 / ILR3+ Audio Induction Loop Receiver The ILR3 is a high quality audio induction loop receiver which allows the user to listen to an audio frequency induction loop system using a standard pair of stereo headphones (supplied). It has a vertically mounted pick up coil and a low cut filter function to emulate the performance of a hearing aid switched to the T position. It is therefore an essential tool for anyone installing maintaining or managing facilities fitted with induction loops providing them with immediate confirmation that the loop is running. The ILR3+ also has LED indications to show field strength, for more accurate monitoring of a loop system. (To measure the performance of an induction loop system, Ampetronic's calibrated receiver CMR3 must be used). In addition, the ILR3 or ILR3+ can be used by anyone without a hearing aid who needs a little extra assistance to hear. Low Cut Filter The ILR3 incorporates a low cut filter. Switching the low cut filter on Features Low distortion Flat frequency response to 6kHz Low cut filter to simulate hearing aid response Low and high field strength indicators according to IEC :2006 (ILR3+) Volume control attenuates the low frequency (bass) components of the signal emulating a typical hearing aid response and helps reduce the annoying buzz caused by some AC power circuits. For best reception in general use and where there is no low frequency interference, the ILR3 should be used with the flat frequency response selected. Specification Frequency response Standard: Flat 85Hz - 6kHz ± 0.5dB Low Cut: 400Hz - 6kHz - 3dB (similar to hearing aid) 5 year warranty Auto power off with headphone removal > 100 hours life with 2 AA batteries Output power Distortion Battery powered Battery life >100mW into 16Ω load <0.5% 1KHz 2 x Alkaline AA (included) >100 hours with Alkaline batteries Magnetic field strength To PPM type II referenced to 400mA/m rms: Applications include Checking that an induction loop system is working. Essential for installers, venue managers and event organisers Recording the output of a loop system Providing assistance to people without a hearing aid Locating sources of interference Checking loop coverage and signal overspill Indication (ILR3+ only) 'Good' 0dB Green LED 400mA/m rms with sine 'Okay' -6dB Amber LED 400mA/m rms with sine Physical Dimensions width 62mm, depth 26mm, height 112mm Temperature range IP20 : 20 to 90% relative humidity, -10 to 45ºC Accessories Stereo headphones impedance 32Ω per side (included) Standards Compliance The ILR3/ILR3+ is CE marked to all relevant safety and EMC standards.

33 Datasheet ILR3+ Loop Checking System The Ampetronic loop checking system, the ILR3+, is designed to allow any user to regularly monitor a loop system. It is simple and highly cost effective, and meets the requirements of the international loop performance standard, IEC No technical skills are required to perform the basic checks, which allow an operator to listen to the system through headphones, and check that the sound level provided by the loop is sufficient. The loop checking system comes with an easy to follow procedure for checking any loop system. ILR3+ Product Information Using the ILR3+for checking a loop system The ILR3+ is designed to make it simple for anyone to regularly check that a loop system is working, has a field strength of the correct level to provide benefit, and meets the IEC standard. Field Strength Indicators As dictated by the international standard, the ILR3+ has two indicators and ILR3+ front view ILR3+ rear view these are calibrated to illuminate when the field strength is 400mA/m (0dB) or higher (GREEN) and between 200 and 400mA/m (-6 and 0dB) (YELLOW) Checking Loop System Status Volume control Low cut filter 0db indicator (High) 6dB indicator (Low) Power Indicator Headphone socket (turns ILR3+ on) The status of the loop can be easily checked by running continuous speech or music into the loop and monitoring the indicators when the ILR3+ is held in the appropriate location. A simple table on the back of the ILR3+ shows what is acceptable or not. User Instructions The ILR3+ comes with a simple user procedure to help guide anyone through the checking process. Using the ILR3+ requires no special knowledge of loop systems or any technical knowledge. Who can use the ILR3+ The ILR3+ is ideal for regular use by a facilities manager or non-technical member of staff. Regular use will ensure that the provider of the service keeps the loop system working and providing a genuine benefit to the hard of hearing. The ILR3+ is an essential companion to any loop system installation. ILR3+ top view sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no ILR3/ILR3+-UP Northern Road, Newark NG24 2ET. United Kingdom

34 Checking an Induction Loop System using the Ampetronic ILR3+ Purpose Your induction loop system is installed to help hearing aid users to hear high quality sound, and to remove unwanted background noise. An induction loop can make a big difference to users, but only if it is turned on and adjusted correctly. This procedure shows you how to check that your induction loop system is providing a benefit to the users using a simple ILR3+ (shown in the picture). The procedure is very quick and simple and should be carried out frequently. Your loop system should also be measured with a professional meter on an occasional basis to ensure good performance, and compliance with the performance standard (called IEC ). Before you start 1. Check the Induction Loop System Identify the induction loop amplifier Ensure the amplifer is turned on 2. Check the Loop Receiver - Ampetronic ILR3+ Turn the volume knob down to zero (anticlockwise) Set Low Cut Filter button to be out Put the headphones on, and insert the jack plug into the socket on the top of the ILR3+ (this turns the ILR3+ on) Check the power (O/I) indicator is lit - if not, batteries need replacing 3. Check the input signal / sounds Ensure the loop system has normal sound entering the system. You may need someone to speak at the normal position of the talker into the induction loop microphone, so the loop system receives sounds as in normal use. Turn up the ILR3+ volume control to half-way and you should clearly hear the sound from the induction loop system 4. You are now ready to follow the Loop System Checking Procedure (see over) Ampetronic Ltd. Northern Road, Newark NG24 2ET United Kingdom +44 (0) sales@ampetronic.com

35 Loop System Checking Procedure 1. Decide where to hold the ILR3+ Hold the ILR3+ in a position where the user s ear would normally be, seated or standing The ILR3+ must be held vertically, with the indicator lights facing the ceiling or the floor. Hold the ILR3+ in the hand - do not place on any surface or structure If the user could be in various positions or different areas, repeat steps 2 and 3 with the ILR3+ in each typical position for the user s ear. When performing steps 2 and 3 below, if the system fails, report what is seen or heard to the person responsible for maintenance and repair of the induction loop system. 2. Listen to the loop system Ensure sounds / speech etc. are on and are continuous PASS FAIL Listen to the sounds you hear through the headphones - Sound is clear - Easy to understand - Comfortable volume - Distorted or muffled - Hard to understand - Inaudible REPORT WHAT YOU CAN HEAR 3. Check field strength indicators Ensure sounds / speech etc. are on and are continuous PASS FAIL While sounds are active, watch the two indicators and compare to the label on the back of the ILR3+ Watch and listen for at least 60 seconds Make sure you keep the ILR3+ vertical at all times Good OK - Yellow on constant or - Yellow and green both flickering Too High - Green on constant REPORT SIGNAL TOO HIGH Low Too Low - Yellow occasionally on or both lights off REPORT SIGNAL TOO LOW Up

36 Datasheet CMR3 Calibrated Audio Induction Loop Receiver The CMR3 calibrated receiver is designed for measuring the performance of audio induction loop systems. The audio output is within ±0.25 db over the frequency range and where used with a suitable audio analyser such as the Minilyser from Neutrik Ltd, the frequency response and field distribution of the Specification magnetic field from any audio induction Magnetic field response loop system can be plotted. 400mA/m RMS 0dBu audio output (0.775V) Calibrated to provide 0dBu output for a field strength of 400mA/m RMS, in accordance with the international induction loop standard IEC it is an essential tool for anyone wishing to assess loop system performance for analyses or certification. Field strength Coil orientation vertical (indicated by h) Frequency response 50Hz to 8kHz ±0.25dB, 30Hz and 14kHz -3dB A-weighting filter EN :2003 sound level meter (Switched) Gain stability Output variation over battery life <0.1dB Features Output variation due to loading Output variation over temperature range <0.1dB <0.25dB Enables easy assessment of the system to the international induction loop standard IEC Accuracy to within 0.5dB 5 year warranty Compatible with most audio analysers Applications include Measure loop coverage and spill Assess frequency dependent loss due to metal structures Certification of an induction loop system to IEC Optional Accessory Audio cables are available for simple interfacing of audio devices to loop systems - order code SCC Overall gain variation <0.5dB Output Output type Active Balanced Load impedance >600Ω Connector 3.5mm stereo jack socket Power Battery 2 x AA alkaline Battery life Approximately 200 hours Battery condition OK when LED illuminated Physical Dimensions 62 w x 26 d x 112 h (mm) Weight 84g (excluding batteries) Temperature range -10 C to +45 C Accessories 3.5mm stereo plug to XLR plug adaptor cable supplied (1.5m length) Standards Compliance The CMR3 is CE marked to all relevant safety and EMC standards sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

37 Datasheet MP221 Microphone Preamplifier The MP221 preamplifier is a high performance unit built to broadcast standards. Primarily designed to add flexibility to Ampetronic Induction Loop installations, it can also be used in other professional audio systems where the control and mix of audio signals is required. The MP221 is a four input preamplifier, 2 XLR microphone inputs with phantom power and 1 line level input for balanced or unbalanced connection and a twin unbalanced phono input. The single electronically balanced output can be connected to balanced or unbalanced loads. Balanced Microphone Inputs Connector XLR Gain (Factory setting) 66dB Gain switch (low) 46dB Input referred noise -124dBu (200Ω source) Input impedance > 5kΩ Phantom Power +12V Line Level Input 1 Unbalanced Stereo Connector Dual phono Gain 6dB Input Impedence 47k Ω Line-level Input 2 Balanced / Unbalanced The inputs are fully protected. In the event of an overload condition of any amplifier section, the overload warning LED will illuminate. Features Switchable phantom power Independent controls for all inputs 5 year warranty Power supply included 2 Balanced microphone inputs 1 Balanced/Unbalanced line input 1 Stereo Unbalanced line input 1 Balanced/Unbalanced line output Input Signal Management and Control To increase input options for induction loop systems or for other general mixing arrangements. Connector Gain Input impedance Outputs Connector Number Level Overload Overload LED Controls Gain Control Phantom Gain Boost Physical Width, Depth, Height Weight Power Supply Voltage, Current Accessories (1/4 inch) 6.3 mm jack socket 6dB 1MΩ each side, 2MΩ differential (¼ inch) 6.3mm Jack socket 1 Balanced/Unbalanced 0dBu (nominal) +16dBu Bal / +10 dbu Unbal On front panel 4 (1 per input) on front panel Global ON/OFF on rear panel Internally selectable per channel 107 x 200 x 44mm 0.65kg 12Vdc, 55mA (region specific power supply included) The unit can be rack mounted using the RM-1U rack tray, BPS-1U and BPL-1U blank plates. Standards Compliance The MP221 preamplifier is CE marked to all relevant safety and EMC standards sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

38 Datasheet Ancillary Equipment SP5, CTU11/12 & ILC4 To facilitate the implementation of complex loop designs such as those required for very large area coverage, spill control, metal loss compensation or balcony coverage, Ampetronic provide a range of ancillary equipment. Ampetronic often design Audio Induction Loop Systems that are more complex than the simple wire-around-wall installations when customers require specialised systems or have demanding specifications to meet. These systems vary from very large area requirements such as cathedrals, sports halls, etc. to irregular-shaped areas, loop systems requiring low-spillover for confidentiality, or proximity to other induction loops. Modern buildings often incorporate large amounts of metal in their structures, and the frequency dependent losses caused by this require special attention. For many of the special situations listed above, and others, Ampetronic have a range of special products that enable these requirements to be met with essentially standard units. For the majority of situations, these units are set up in the factory for a particular location, and this is part of our design support work. SP5 Signal Processor The SP5 is a signal processor which introduces a phase shift across the audio band between two separate amplifiers. When specified with a suitable loop design, it is used for a variety of system applications. Large area systems Rooms with structural metal Theatres with balconies Confidential systems The charge for design and set-up of the ILC4 and CTU11/12 are included in the equipment cost. The cost of loop layout design (often needed in complex applications) is separate. Features True 90º phase shift across audio band Compatible with all Ampetronic's professional Induction loop driver range Supplied complete with interconnecting leads Integral metal Loss Correction Control Applications include Ultra-Low Spill systems Metal loss compensation Balcony cover Large area cover: Stadium Theatres Cinemas Cathedrals Sports Halls Adjacent locations An Ultra-Low Spill Induction Loop System uses two carefully designed loop arrays, which are overlaid in the same area, and are driven by two loop drivers. This type of design can reduce the spill field from the loop within 1.5m of the loop perimeter. To minimise any unwanted interaction between the two arrays, the SP5 creates a 90º phase difference between the signals into the amplifiers. The SP5 also incorporates Ampetronic s Metal Loss Correction system. This same phase shift requirement may also exist when driving balconies which overhang a seating area. The phase shift minimises the interaction between the two loops to deliver a uniform field strength on both floor levels. To greatly reduce the effect of loss due to metal in the building construction, two arrays are often used (as for Ultra-Low Spill ). In both cases careful design of the complex loop layout is essential. Ampetronic can offer this design service. The SP5 is built into a standard 1/6th rack width unit. Rack mounting trays and blanking plates can also be provided. The SP5 is supplied with the required power lead and input and output signal leads.

39 CTU11/12 Current Ratio Transformer The CTU11 Current ratio Transformer can often be used where the voltage or current demands of a loop would normally exceed the capabilities of the ILD1000G loop driver. The unit is factory configured to maximise efficiency by matching the loop driver with the loop impedance; this avoids the need to specify two amplifiers as long as the loop driver has sufficient VA. The CTU11 can also be used to reduce loop current where both a small and large area need to be driven with the same loop signal (such as in nave / chancel applications). Always contact Ampetronic when considering the use of the CTU11/12 as there are a wide range of transformation options. ILC4 Combining Unit The ILC4 is integral to Ampetronic s Parallel drivet technology and is designed to hold up to 4 ratio transformers. The unit is designed to sum the output currents of multiple Loop Drivers to cope with high current and voltage loop demands. The units are factory configured to match the loop amplifier(s) with the actual loop impedance for maximum efficiency. This enables very large areas to be covered; it can also be used with loop applications where high very metal loss is expected. Using the master - slave system found on our professional loop driver product range, areas up to 4000 m² (43000 ft²) cab be successfully covered. Always contact Ampetronic when considering the use of the ILC4 as there are a wide range of transformation options. The ILC4 is built into a standard 2U high rack mount case supplied with rack mount hardware. sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

40 Datasheet Input Signal Adaptors Ampetronic's comprehensive range of input signal adaptors simplify the interface between different input signals and the audio induction loop driver. The adaptors fall into one of two groups. The first is for converting high level signals e.g. 100V line or low impedance speaker signals to standard line levels. The second group allow the interface of different microphone types e.g. balanced or single ended microphones with isolated or unbalanced inputs and vice-versa. ATT-UJ Universal Attenuator The ATT-UJ Universal Attenuator is designed to interface a 100V line or low impedance (low Z) speaker systems to various inputs such as those found on Ampetronic equipment. In addition to transformer isolation, a range of attenuations are possible by connecting to the appropriate output terminals. Inputs: Screw terminals Outputs: Screw terminals 3.5mm & 6.3mm jack cables included Max audio input: 100V line: 100V AC, Low Z speaker: 10V AC Attenuation 100V line: -70dB, -60dB, -50dB & -40dB Low Z speaker: -50dB, -40dB, -30dB & -20dB ATT-UX Universal Attenuator The ATT-UX Universal Attenuator is designed to the same specifications as the ATT-UJ but comes with an XLR cable. MAT1 Adaptor The MAT1 is designed to interface an unbalanced electret microphone to a balanced microphone input with +15V phantom power such as those found on Ampetronic equipment. The unit has unity gain and provides correct bias voltage to the electret microphone. Inputs: 3.5mm Mono Socket Output: XLR Plug MAT60 Adaptor The MAT60 is designed to interface a balanced microphone to an unbalanced electret microphone input such as those found on the Ampetronic ILD100 and CLD1 induction loop drivers. The unit has unity gain and can provide phantom power to the balanced microphone using a separate external regulated DC power supply of volts (not supplied). Inputs: Outputs: Screw terminals Screw terminal XLR cable included Inputs: Output: DC Power: 3.5mm Mono Socket 7 pin DIN socket 2.1mm Jack Socket Adaptor Input Output Compatible Audio Induction Loop Drivers ATT-UJ 100V line or Low Z Speaker 3.5mm or 6.3mm jack cable CLD1, ILD122, ILD300, ILD500 & ILD1000G ATT-UX 100V line or Low Z Speaker XLR cable ILD122, ILD300, ILD500 & ILD1000G MAT1 Unbalanced electret microphone 3.5mm mono plug Balanced microphone with ± 15V phantom power or DC power supply XLR socket (1) 7 pin DIN (1DC) ILD122, ILD300, ILD500 & ILD1000G MAT 60 Balanced microphone XLR socket Unbalanced electret microphone 3.5mm mono plug Requires DC power supply ILD100 & CLD1 sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

41 Datasheet Microphones Ampetronic offer a small range of microphones primarily for use with one to one systems, counter systems and small area coverage systems such as the CLD1 and ILD100. All the microphones have an unbalanced connection and derive power from the host equipment eliminating the need for batteries. By using the Ampetronic MAT1 adapter, it is possible to use the microphones with balanced lines having ±15V phantom power, such as those on Ampetronic s preamplifiers and larger loop drivers. Desktop Microphone EM195 A The desk microphone EM195A is a directional unit providing good sound pickup with reduced ambient noise and reverberation. If has a weighted base for stability when used free standing, alternatively it can be fixed to the edge of an upright panel using the rotational mounting coupling included. Colour Cable length Weight Accessories Black 2m 370g Weighted Base Rotational mounting coupling Boundary Microphone Q400 The Q400 boundary microphone is small and unobtrusive, ideal for concealment on a service counter. The design fixes easily to a desk top surface, and provided the desk can be drilled, the cable can be invisible from the top. It has a directional, hypercardioid response which minimises room reverberation and background noise pickup, offering a clean, intelligible signal. Colour Cable length Black 3m Tie Clip Microphone EM-1.2 Depending on requirements, a service counter may need a small tie clip style microphone supplied with a detachable clip that can be fitted adjacent to the transparent screen, or to the counter structure as a permanent installation. For this, the Tie clip style microphone is a possible solution. The microphone has an omni-directional pickup pattern and will be less effective at excluding background noise compared to a directional microphone. Colour Cable length Accessories Black 3m Tie clip sales@ampetronic.com support@ampetronic.com phone +44 (0) fax +44 (0) Issue no UP Northern Road, Newark NG24 2ET. United Kingdom

42 Datasheet Installation Accessories Copper Foil Tape - FB 1.8 The standard flat foil cable supplied by Ampetronic is 18mm (0.71 ) wide, Ampetronic supply a comprehensive range of accessories to facilitate the installation of induction loop systems. The copper tape, warning tape and plastic extrusion simplify installation of loops under floor coverings such as carpets, vinyls, laminates and wood. The 19 inch rack mount accessories are compatible with all our equipment and enable simple, tidy and professional looking installations. The logos add the finishing touch, advertising the presence of a professional induction loop system. with a copper section of 1.8mm². The cable is supplied in 50 (164ft) or 100 metre (328ft) reels The construction of the cable is copper foil of 0.1mm thickness, covered in bonded Polyester film. Total thickness is 0.25mm (0.01 ). Installation Warning Tape - PWT Ampetronic supply a special high quality tape, 50mm (2 ) wide, colour white, printed with a warning text and deaf logo in blue. This tape is designed to fix the copper foil tape to the floor, indicating clearly the importance of the cable installed in that location. The tape is supplied in 50 metre (164ft) reels. PVC Extrusion - EXT This is a high density PVC extrusion, supplied in 3 metre sections, for covering the copper tape in areas where a high level of physical protection is needed, such as exposed floors, skirting boards etc. Colour is light grey. Normal fixing is by means of the extra heavy duty adhesive strip fitted to the edges of the extrusion, but in exceptional cases screws or special fixing pins can be used in addition. It is essential that the fixing surface should be free of grease, polish or dust. The dimensions are given in the drawing below: Direct Burial Cable - DBC 1.0 / DBC 2.5 PVC cable can not be used for burial in concrete as the corrosive effects of alkalis present in cement based compounds will lead to failure of the loop over time. This specialised EPR-CSP HOFR (Heat and Oil Resistant, Flame Retardant) cable offers more durable insulation when compared to standard PVC wire and improves protection where a loop wire needs to be installed in a concrete screed. DBC 1.0 available in 100m rolls only. DBC 2.5 available in 100m and 200m rolls. Logos Two different sizes of the deaf logo are supplied with the equipment. The large size logo is supplied with the ILD122, ILD300,ILD500 and ILD1000G. This logo is double sided, printed in standard blue colour on white rigid sheet, 0.62mm thick. The small logo is supplied with the ILD15, ILD100, CLS1, CLS2 and CLD1. It is double sided, printed in standard blue colour on 0.25mm plastic sheet, one side coated with a fully transparent adhesive for fitting to glass panels. Both logos are available for sale separately. Code: GG00002 GG00001 Size: Small Large Width: 99mm 200mm Height: 128mm 256mm

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