Getting Started Guide
34 APx511 B Series Hearing Instrument Analyzer: Getting Started Guide
A 24 Vdc, 4 mA constant current power source to power the
microphone can be switched ON or OFF in software.
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
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