AA220 / AA222 | Combined audiometer and middle ear analyzer. Compact, but with a wide range of features, the AA220 / AA222 is ideal in situations where space or portability are major requirements.

Intro

Specifications

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Probe tone

Frequency: 226Hz. Level: 85 db SPL with AGC.

Air pressure

Control: Automatic.
Indicator: Measured value is displayed on the graphical display.
Range: -600 to +300 daPa.
Safety Limitations: -800 daPa and +600 daPa.
Pressure Change Rate: Minimum (50 daPa/s), medium, maximum or automatic with minimum speed at compliance peak.
Selectable in the setup.
Compliance: Range: 0.1 to 6.0 ml (Ear volume: 0.1 to 8.0 ml).

Types

Tympanometry: Automatic, where the start and stop pressure can be user programmed from the setup menu.
Eustachian Tube Function: ETF test for use when the eardrum is intact.

Inputs

AA222 only:
CD player or tape recorder. - 1 or 2 channels.
External microphone for live speech.
Patient response switch.

Output

Audiometry
Bone conduction
Contra reflex
AA222 only:
Free field 1 and 2: Output for external 2 channel power amplifier.
Monitor: Monitor earphone disconnects the internal monitor loudspeaker when inserted.

Acoustic Reflex tests

Atomatic reflex: Two independent user selectable protocols. Series of fixed intensities available.
Automated intensity search functions available for threshold search and reflex growth indication.
Free mixing of Ipsi and Contra. Manual reflex: Manual control of all stimuli. May also be used to redo part of automated test results.
Reflex decay: Manual control, with stimulus duration of 10 sec. Ipsi or contralateral stimulation.

Audiometer tests

Manual Audiometry.
Automatic Audiometry: Auto threshold according to ISO 8253-1 (Patient controlled Hughson-Westlake). The threshold is determined by the activation of the patient response.
SISI: With automatic scoring calculation (5 dB included for familiarisation).
Warble: 5Hz sine, +/- 5% modulation.
ABLB: Automatic loudness balance test (Fowler).
Stenger: Binaural pure tone.
AA222 only:
Live voice speech. Prerecorded speech.
Binaural speech.
Stenger: speech.

Frequencies and intensity ranges

Ipsilateral: Intensitiy up to 110dBHL.
Frequency: 250, 500, 1000, 2000, 3000, 4000, WB, HP, LP noise
Contralateral: Intensity up to 120dBHL.
Frequency: 125 to 8000Hz, WB, LP, HP noise
Audiometry: Intensity from -10 to 120dBHL.
Frequency from 125Hz to 8000Hz

Attenuator

1dB or 5dB steps.

Memory

Internal memory for two ears. Each ear: 6 Ipsi and 6 Contra recordings. Each may have up to 6 stimuli. Also, there is memory for additional manual reflex recordings. (Total max. 78 reflexes per ear).

USB	Input/output for PC connection.

Printer

Built-in fast thermal printer with recording paper in rolls. Paper width: 112 mm.

Compatible Windows software

Interacoustics Database OtoAccess™ and Diagnostic Modules software. IA-NOAH-Imp and IA-NOAH-Aud Module for interfacing to NOAH.

Power Supply

UPS400 (Included) 100-240V.

Consumption

15VA, max. 45VA.

Dimensions (LxWxH)

36x26x10 cm / 14x10x4 inches

Weight

2.8 kg / 6 lbs.

Impedance standard

IEC 60645-5/ANSI S3.39, Type 2.

Audiometer standard

IEC 60645-1/ANSI S.3.6. AA220: Type 3 Tone Audiometer AA222: Type 2 Tone Audiometer, Speech Type B-E

Safety standard

IEC 60601-1, Class I, Type B.

Medical CE-mark

Yes

Printer option

AA222/AA220-xp is identical to the AA222/AA220 but has no built-in printer. Suitable for installations where computer connection takes care of printing.

Included parts AA220/AA222

TDH39 Audiometric headset
CIR22 Insert earphone for contralateral reflex stimulation or masking or monitoring
B71 Bone conductor
APS3 Response button
ATP-AT235u Universal probe system with shoulder strap, wrist strap
BET50 Box of 65 assorted eartips
TPR26 3 rolls of recording paper
UPS400 External switch mode power supply
Power cable 120 or 230 V (Please specify)
Dust cover
Operation Manual CD
Multilingual CE manual

Optional parts AA220/AA222

EARtone 5A Insert phones
50250 Peltor noise exclosures
21925 Amplivox noise exclosures
TDH39z Single earphone w. HBZ235u headband for contralateral reflex stimulation
ACC25 Carrying case
AFC8 Sound Cabin Installation Panel
AP12 2x12 W External Power Amplifier
ALS7 Free Field Loudspeaker for AP70
CAT40 Calibration unit, 0.2-0.5-2-5 ml
IES-2 Impedance ear simulator
GSE10 RS232 Galvanic isolation adapter
OtoAccess™ and Diagnostic Modules
MTH400M Monitor Headset with boom microphone
MTH400 Monitor Headset
EM400 Electret Talk Back Microphone
IA-NOAH-Aud module
IA-NOAH-Imp module

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