Interacoustics AA222 Instructions For Use Manual page 70

AA222 Instructions for Use – US
Eustachian tube
function 1 - Non
perforated eardrum
Eustachian tube
function
2 - Perforated eardrum
Eustachian tube
function 3 - Patulous
Eustachian tube
Reflex Functions
Signal sources: Tone - Contra, Reflex:
THD:
Tone - Ipsi, Reflex:
NB noise – Contra,
Reflex
NB noise – Ipsi, Reflex
Stimulus duration:
Reflex Acceptance
Intervals
Intensity max
Outputs: Contra Earphone:
Ipsi Earphone:
Probe connection
Test types: Manual Reflex
Automated Reflex
Reflex Decay
Reflex latency
Audiometry measure system
Air Conduction DD45:
TDH39:
HDA300:
HDA280:
E.A.R Tone 3A/5A:
IP 30:
Bone Conduction B71:
B81:
Placement:
Free Field ISO 389-7 2005, ANSI S3.6-2010
Effective masking ISO 389-4 1994, ANSI S3.6-2010
Manual control of all functions.
Williams test
Toynbee test
Continuous sensitive impedance measurement
250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz, Wide
Band, High and Low pass.
Less than 5 until 110 dB, 5 % above 110 dB (supra-aural
headphones), less than 5 % until 110 dB, 10 % above 110
dB (insert earphones or probe).
500, 1000, 2000, 3000, 4000 Hz wide band, high and low
pass.
250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz
1000, 2000, 3000, 4000 Hz
750 ms
Adjustable between 2 % and 6 %, or 0.05 – 0.15 ml change
of ear canal volume.
Down to 1 dB step size.
90, 100, 120 dB HL.
TDH39 earphone, DD45 earphone, CIR insert and/or
EARtone 3A insert, IP30 for Reflex measurements.
Probe earphone incorporated in the probe system for
Reflex measurements.
Connection of the electrical and air system to the probe.
Manual control of all functions.
Single intensities
Reflex growth
Automatic, 10 dB above threshold and manually controlled
with stimulus durations of 10 s.
Automated, first 300 ms from stimulus start.
PTB/DTU report 2009
ISO 389-1 1998, ANSI S3.6-2010
PTB report PTB 1.61 – 4064893/13
PTB report 2004
ISO 389-2 1994, ANSI S3.6-2010
ISO 389-2 1994, ANSI S3.6-2010 DES-2361
ISO 389-3 1994, ANSI S3.6-2010
ISO 389-3 1994, ANSI S3.6-2010
Mastoid
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