PDA Range PDA102 Installation Instructions Manual
PDA102
AUDIO-FREQUENCY
INSTALLATION INSTRUCTIONS
This equipment must be installed by a suitably skilled and technically
competent person. Please read these instructions carefully before installation.
Important notes ............................................................................................. 2
PDA102 kit contents ...................................................................................... 2
What is an audio frequency induction loop system? .................................. 3
Familiarisation with your PDA102 induction loop amplifier ...................... 4
Planning the system ...................................................................................... 5
Overview of the ‘Outreach plate’ audio input extension system .............. 10
Installation ..................................................................................................... 11
Safety precautions .......................................................................................... 11
Mounting the amplifier .................................................................................. 11
Connecting and testing the system ............................................................... 12
Troubleshooting ............................................................................................. 14
Technical specification ................................................................................... 15
INDUCTION LOOP AMPLIFIER
PDA102 Instructions • DCP003169 Rev 3 • Page 1PDA102 Instructions • DCP003169 Rev 3 • Page 16
© 2010. Errors and omissions excepted.
The manufacturer of this equipment operates a policy of continuous improvement and
reserves the right to alter product specifications at its discretion and without prior notice.
PDA102 kit contents
The PDA102 induction loop amplifier is available in the following kit formats. Please ensure
that the accessories shown are included in the kit you have purchased.
PDA102C 1.2m2 Counter Kit
1 x PDA102 audio frequency induction loop amplifier
1 x AC power lead
1 x TX121 Counter loop cable and fixings
1 x AMT Omni-directional tie/desk microphone c/w 1.5m (5ft) lead and attachments
1 x Installation manual (i.e. this manual)
1 x Accessory pack containing four stick-on cabinet feet, four wall-mounting screws, one four-way
‘Outreach’ connector, one two-way loop cable connector and two ‘induction loop in use’ stickers.
PDA102R 16m2 Small Room Kit (‘Outreach’ plated mic. version)
1 x PDA102 audio frequency induction loop amplifier
1 x AC power lead
1 x APM Omni-directional ‘outreach’ plated microphone c/w 6m (20ft) connection cable
1 x 16m of 0.5mm2 induction loop cable
1 x Installation manual (i.e. this manual)
1 x Accessory pack containing four stick-on cabinet feet, four wall-mounting screws, one four-way
‘Outreach’ connector, one two-way loop cable connector and two ‘induction loop in use’ stickers.
PDA102L 16m2 Small Room Kit (tie/desk mic. version)
1 x PDA102 audio frequency induction loop amplifier
1 x AC power lead
1 x AMT Omni-directional tie/desk microphone c/w 1.5m (5ft) lead and attachments
1 x 16m of 0.5mm2 induction loop cable
1 x Installation manual (i.e. this manual)
1 x Accessory pack containing four stick-on cabinet feet, four wall-mounting screws,
one four-way ‘Outreach’ connector and two ‘induction loop in use’ stickers.
PDA102S 16m2 TV Lounge Kit
1 x PDA102 audio frequency induction loop amplifier
1 x AC power lead
1 x APL Double phono line level ‘outreach’ connection plate
1 x APS SCART to phono audio connection lead
1 x 16m of 0.5mm2 induction loop cable
1 x Installation manual (i.e. this manual)
1 x Accessory pack containing four stick-on cabinet feet, four wall-mounting screws, one four-way
‘Outreach’ connector, one two-way loop cable connector and two ‘induction loop in use’ stickers.
PDA102 Amplifier and AC Power Lead ONLY
1 x PDA102 audio frequency induction loop amplifier
1 x AC power lead
1 x Accessory pack containing four stick-on cabinet feet, four wall-mounting screws, one four-way
‘Outreach’ connector, one two-way loop cable connector and two ‘induction loop in use’ stickers.
These instructions are general and cannot be considered to cover every aspect of audio-frequency
induction loop system design and installation.
We recommend you also read BS7594 (The Code of Practice for Audio-Frequency Induction Loop
Systems) and EN60118-4 (Magnetic field strength in audio frequency induction loop systems for hearing
aid purposes), copies of which are available from the British Standards Institute, 389 Chiswick High
Road, London W4 4AL. Tel: +44 (0)20 8996 9000. Web: www.bsi-global.com.
It should be noted that
all of the above documents can be subject to update or revision at any time and we recommend you
check the status of them with the BSI before ordering.
Other National standards of design/installation/commissioning should be referenced where pertinent.
Important notes
PDA102 technical specifications
Rated supply voltage and frequency: 230VAC @ 50/60Hz
Rated power consumption: 20W
Maximum r.m.s. output current: 2.1A
Maximum peak output current: 2.8A
Maximum r.m.s. load voltage: 5.5V
Total harmonic distortion: <0.1%
Maximum area of a square loop: 16m2 (4m x 4m)
Recommended loop conductor size: 0.5mm2 @ <16metres loop length (inc. tails)
Recommended number of turns: 1
Frequency response –3dB: 120Hz to 5kHz as per IEC 60118-4
Input signal level: Mic: -50dBV Unbalanced, Outreach: -10dBV balanced (Referenced to full
output 1kHz sine wave into 1ohm load with controls at maximum)
Input impedance: Mic: 1k-Ohm; Outreach: 20k-Ohm
Microphone phantom power: 9V DC
Signal to noise ratio: -62dB
AGC Ratio: 2:1
Amplifier mode: True Current Mode
Control and indicator labels and functions: Green Power LED, Red Limit LED, Red Peak LED,
Limit control, Drive control.
Special features: Outreach plate connector allowing the connection of up 10 outreach plates.
Connections: Mains - IEC Socket 230V 20W; Loop Output - 2 Way Plugable screw terminal;
Outreach - 4 Way Plugable screw terminal; Microphone - 3.5mm mono jack socket.
Fixings: 4 x No.8 Japanned Woodscrew (supplied)
Dimensions (H x W x D): 56mm x 136mm x 175mm (inc. connectors)
Mass: 1.25 kg (excluding packing and accessories)
PDA102 Instructions • DCP003169 Rev 3 • Page 15PDA102 Instructions • DCP003169 Rev 3 • Page 2
M
T
An audio-frequency induction loop system (AFILS) allows hearing impaired
people to hear more clearly.
Most hearing aids have a ‘T’ or ‘MT’ switch which allows them to pick up
the electromagnetic field generated by an induction loop system. The
hearing aid
converts this signal into a sound suited to its user’s specific hearing
requirements.
Any hearing impaired person positioned within or near the loop can hear the loop signal by
switching their hearing aid to the correct position, allowing them to participate more effectively
in general conversation, ordering goods or services, listening to public performances, etc.
An induction loop system therefore comprises four main elements:-
The audio source – typically a microphone, television or radio (or a combination of these).
The induction loop amplifier
The loop – typically a single turn of wire usually run around the perimeter of the room or, for ticket
counter installations, a special counter loop fixed to the underside of the counter surface.
The receiver(s) – any behind-the-ear type hearing aid with a ‘T’ or ‘MT’ switch.
What is an audio frequency induction loop system?
Television
Signal cable
Amplifier
Loop
Microphone
Signal cable
Hearing
aid in the
‘T’ or ‘MT’
position
If no sound is being picked up by the hearing aid or induction loop test receiver, first check
that the amplifier’s green Power indicator is lit.
If the Power indicator IS NOT lit:-
Check that the AC power lead is correctly plugged into the mains supply and the amplifier.
If the power indicator is still not lit, the AC power lead or the amplifier could be faulty.
Check the amplifier with another AC power lead. If the problem persists, return the amplifier
to your distributor/supplier for repair.
If the Power indicator IS lit:-
Check that the amplifier’s Limit indicator is lit and that an audio signal is active.
If the Limit indicator IS NOT lit, make sure all microphone and audio connection leads are
correctly plugged in and at least one audio source is active.
Adjust the amplifier’s Limit control until the Limit indicator just flickers.
If there is still no sound being picked up by the hearing aid or induction loop test receiver,
check that the loop cable is not broken or misconnected.
Tip: The loop strength meter WILL NOT illuminate if there is a break in the loop cable or if it is
misconnected.
Troubleshooting
PDA102 Instructions • DCP003169 Rev 3 • Page 3PDA102 Instructions • DCP003169 Rev 3 • Page 14
Loading...