Specifications

Chapter 4: Getting Started Guide
22 APx511 Getting Started Guide
Basic Test configuration
Hearing instrument testing is typically performed in an acoustically isolated test chamber, which is fitted with a loudspeaker, a
telecoil, a battery simulator and a measurement microphone with a 2 cc acoustic coupler.
The APx511 is shipped with either a DB-15 to DB-15 cable, or a DB-15 breakout cable, selected at time of purchase. Use this
cable to connect the elements in your test chamber to the APx511 as shown in this diagram. The microphone cable shown here
is provided with the measurement microphone, when purchased as an option from Audio Precision.
SOFTWARE OPTIONS
OUTPUT TO TEST CHAMBER MICROPHONE INPUT
PC INTERFACEAUX CONTROL IN
Manufactured by
Audio Precision in
Beaverton, Oregon
USA.
0–5 V
!
AUDIO PRECISION, the AUDIO PRECISION logo and the AP logo
are trademarks of Audio Precision and are registered in the
U.S. Patent and Trademark Office and in other countries.
SUPPLY VOLTAGE: 100/120/230/240 VAC IEC CAT II
FREQUENCY: 50/60 Hz MAXIMUM POWER: 75 VA
230/240 VAC 400 mA TD 5x20mm 250V
100/120 VAC 800 mA SB 3AG 250V
SUPPLY VOLT FUSE
511 hearing instrument analyzer
R
C US
I
O
U. S. Patents
7,268,711
7,558,349
pn 8500.xxxxrx
APXn-nnnnn
Mic Input
(Constant current
power)
Output to
Loudspeaker
(4 W)
Output to
Telecoil
(110 mA)
Programmable
Power Supply
(0 to 2 Vdc)
TEST CHAMBER
Mic
Battery
Simulator
Audio Precision
Acoustic
Coupler
Measurement Microphone
Hearing Instrument
Loudspeaker
Telecoil