Operating Instructions - Interacoustics AA222 Instructions For Use Manual

AA222 Instructions for Use – US

3 Operating instructions

When operating the instrument, please observe the following guidelines:
CAUTION
1. Use this device only as described in this manual.
2. Use only the disposable Sanibel
3. Always use a new ear tip for each patient to avoid cross-contamination. The ear tip is not designed
for reuse.
4. Never insert the probe tip into the ear canal without affixing an ear tip as this may damage the
patient's ear canal.
5. Keep the box of ear tips outside the reach of the patient. Risk of choking.
6. Be sure to insert the probe tip in a way which will assure an airtight fit without causing any harm to
the patient. Use of a correct and clean ear tip is mandatory.
7. Be sure to use only stimulation intensities acceptable to the patient.
8. When presenting contralateral stimuli using the insert phones – do not insert the phones, or in any
way try to conduct measurements, without a correct insert ear tip in place.
9. Clean the headphone cushion regularly using a recognized disinfectant (70% isopropyl alcohol).
10. The presence of tinnitus, hyperacusis or other sensitivity to loud sounds may contraindicate testing
when high intensity stimuli are used.
NOTICE
1. Careful handling of the probe system whenever in contact with a patient should be given high
priority. Calm and stable positioning while testing is preferred for optimal accuracy.
2. The AA222 should be operated in a quiet environment, so that measurements are not influenced by
external acoustic noises. This may be determined by an appropriately skilled person trained in
acoustics. ISO 8253-1 Section 11, defines guidelines for permissible ambient noise for audiometric
hearing testing.
3. It is recommended that the instrument be operated within an ambient temperature range of
15°C/59°F-35°C/95°F.
4. The headphone and insert phone are calibrated to the AA222 – introducing transducers from other
equipment requires a re-calibration.
5. Never clean the transducer housing with water or insert non-specified instruments into the
transducer.
6. Do not drop or cause any other undue impact to this device. If the instrument is dropped or in any
other way damaged, return it to the manufacturer for repair and/or calibration. Do not use the
instrument if any damage is suspected.
TM
ear tips designed for use with this instrument.
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