AmpliVox Otowave 302, Руководство по эксплуатации

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TECHNICAL SPECIFICATIONS
44
D-0115696-C (OM038)
– Otowave 302 Operating Manual
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
m
Ʊ
) pressure at peak;
Gradient in daPa (for 226Hz and 1000Hz);
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: Configurable over range: 500Hz, 1kHz, 2kHz & 4kHz
(+/-2%)
70dBHL to100dBHL (+/-3dB)
(2kHz level is restricted to maximum 95dBHL for ear
canal volumes greater than ~3.5ml)
(4kHz level is restricted to maximum 85dBHL for ear
canal volumes greater than ~3.5ml & maximum 95dBHL
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:
Configurable over range: 500Hz, 1kHz, 2kHz & 4kHz
(+/-2%)
70dBHL to110dBHL (+/-3dB)
(1kHz level is restricted to minimum 75dBHL for ear
canal volumes less than ~0.2ml)