Document No DCP0002129 TC 26/03/02 Rev 4
Technical Specification
PDA200E
Microphone input
Impedance: Balanced 8k
Ω
Unbalanced 5k
Ω
Sensitivity: - 65 dB
Phantom power: 12V d.c.
5 mm plug-on screw connectors. Sensitivity 65 dB.
Line level input
Impedance: Balanced ->20k
Ω
,
Unbalanced –16k
Ω
Sensitivity: 0 dB
100V line input
For direct connection to 100V line PA systems
Impedance: > 20k
Ω
Sensitivity: +40 dB
Input level control
Line: -
∞
to +3 dB
Microphone -
∞
to +45 dB
Tone control
Mid range tone control with cut and boost function.
Frequency: 1 kHz
Cut: -17 dB
Boost: +17 dB
Alert input
For audible alert tone, triggered by switch to 12V
DC
Voltage input
12V DC @ 250 mA for triggering alert input and
providing auxiliary power for outreach plates.
Performance
Bandwidth: 100 Hz - 5 kHz @ 0 dB
Dynamic range: > 70 dB
Noise: < -67 dB
CMRR: > 84 dB
Distortion: <0.33% THD @ 1 kHz 0 dBu
Mains voltage
230V AC +10 / -20 %
Dimensions
L x H x D 273 mm x 200 mm x 77 mm
Weight 2.9 kg
Power consumption
< 80 VA
Output drive current
Max peak: > 8A
EBU PPM: > 5.5A
Sine 1 kHz: >2.1A RMS
Loop coverage: 120m
2
Loop impedance: 0.2 to 2
Ω
Indicators
Power on Green LED
Audio in limit Red LED
Loop Drive Yellow LED
PDA200E Induction Loop System -
Installation Guide
Page 7
SECOND FIX
Internal controls
Three internal controls are located on the PCB,
which is mounted on the lid of the PDA200E.
The level control is used to set the input level into
the amplifier. Apply a typical audio source, such as
a CD or test signal, and adjust so that the limit
indicator on the front panel just comes on, then
move back approximately 1/8 of a turn.
If this indicator is either on constantly, or not on at
all (with the signal present), then the amplifier may
need further adjustment. If this level is set too high
then the life span of the amplifier may be
significantly shortened.
The drive control is used to increase or decrease
the level of the output of the amplifier and should be
set up after the limit has been set.
It should be set so that the peak current ‘3’ indicator
is either not on or is just occasionally flashing.
Adjusting this control to the point where the peak
current ‘3’ indicator is lit permanently may damage
the amplifier.
The tone control is used to improve intelligibility of
speech or make the sound more ‘natural’.
Turning the control clockwise boosts mid-range by
up to +17 dB to improve speech intelligibility.
Turning the control anti-clockwise cuts mid range
by up to –17 dB and makes the sound more ‘warm’.
Close the lid
Secure using the 2 Allen bolts supplied.
Test the system
Apply a test signal and check that the system works
satisfactorily. Ideally, the RxTI loop listener should
be used or a national health hearing aid.
Walk round the room and note areas where the
signal is weak. BS7594 acknowledges that it may
not be possible to cover all areas These areas
should be marked to show the system is not
available.
