AmpliVox Otowave 302+ - Tympanometry Specifications; Acoustic Reflex Testing Specifications

TECHNICAL SPECIFICATIONS
50 OTOWAVE 302+ INSTRUCTION FOR USE
printed and/or sent to a computer, parameters used for
analysis, 128 bit Globally Unique Identifier (GUID)
Data presentation:
Records listed in reverse chronological order (latest first),
with indication of data stored as described above
Printing
Supported printer:
Sanibel MPT-II
Interface:
Cable supplied
Information printed:
Tympanogram, Tympanogram analysis parameters, Reflex
graphs, Reflex analysis parameters, Serial Number of device,
Last and Next Due Calibration dates; space for patient &
clinician’s details to be entered.
PC Interface
Serial Interface:
USB Version 1.1
Information sent:
Patient header, full left & right ear data.
7.3. TYMPANOMETRY
Probe Tone
Frequency:
226 Hz ±2% and 1000 Hz ±2%
Level:
85 dB SPL ±2dB and 79 dB SPL ±2 dB over ECV range
Pressure
Range:
+200 daPa to -400 daPa ±10daPa or ±10 % (whichever is
larger) over range 0.1 ml to 6 ml
Limits (safety cutout):
+600 and -800 daPa
Sweep
Speed:
Selectable: 100, 200 or 300 daPa/sec
Analysis
Admittance peak level (in ml or mƱ) pressure at peak;
Gradient in daPa (for 226Hz);
Ear Canal Volume (ECV) @ 200 daPa or -400 daPa
Number of samples stored
100 per tympanogram
7.4. ACOUSTIC REFLEX TESTING
Ipsilateral
Test Frequencies:
500 Hz, 1 kHz, 2 kHz & 4 kHz (±2 %)
Level:
70 dBHL to100 dBHL (±3 dB)
(2 kHz level is restricted to maximum 95 dBHL for ear canal
volumes greater than ~3.5ml)
(4 kHz level is restricted to maximum 85 dBHL for ear canal
volumes greater than ~3.5 ml & maximum 95 dBHL for all ear
canal volumes)
Number of reflex levels
presented below the selected
maximum and step size(s)
available:
100dBHL max, with 5dB or 10dB steps
95/90/85dBHL max, with 5dB steps
Contralateral
Test Frequencies:
500Hz, 1kHz, 2kHz & 4kHz (±2%)
Level:
70dBHL to110dBHL (±3dB)
(1kHz level is restricted to minimum 75dBHL for ear canal
volumes less than ~0.2ml)
(4kHz level is restricted to maximum 100dBHL for ear canal
volumes greater than ~3.5ml)