The Standard Otowave 202 provides 226 Hz probe tone impedance measurements and a user programmable range of ipsi and contralateral reflex test measurements at 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz.
The Otowave 202-H option features a comprehensive range of test functions including user defined 226 Hz and 1000 Hz probe tone impedance measurements and a user programmable range of both ipsi and contra lateral reflex test measurements at 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz.
Features:
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Analysis Performed: Compliance peak level (in ml), Ear canal volume (ECV) at 200 daPa or -400 daPa, Ipsilateral reflex or ± 10 daPa or ± 10% (whichever is larger) over range 0.1 ml to 6 ml
Probe Tone Levels: 226 Hz ± 2%, 85 dB SPL ± 2 dB; 1000Hz ± 2%, 79 dB SPL ± 2 dB (202-H only) over ear canal volume range
Pressure Levels: +200 daPa to – 400 daPa, ± 10 daPa or ± 10% (whichever is larger) over range 0.1 ml to 6 ml
Ear Volume Measurement Range: 226 Hz: 0.2 ml to 6 ml; 1000 Hz: 0.1 ml to 6 ml ± 0,1 ml or ± 5% (whichever is larger)
Ipsilateral Reflex Tone Levels: 500 Hz; 1000 Hz, 2000 Hz, 4000 Hz, Frequency ± 2%, Configurable over range 70 dB to 100 dB HL (4,000 Hz restricted to 95 dB HL)* ± 2 dB, referenced to 2 ml calibration volume, compensates for measured ear volume
*2000 Hz level is restricted to maximum 95dBHL for ear canal volumes greater than ~3.5ml
Contralateral Reflex Tone Levels: 500 Hz; 1000 Hz, 2000 Hz, 4000 Hz, Frequency ± 2%, Configurable over range 70 dB to 110 dB HL (4,000 Hz restricted to 95 dB HL)* ± 2 dB, referenced to 2 ml calibration volume, compensates for measured ear volume
*2000 Hz level is restricted to maximum 105dBHL for ear canal volumes greater than ~3.5ml
Reflex Measurement Range: 0.01 ml to 0.5 ml ± 0.01 ml configurable in 0.01 ml steps
Power: Mains: 100-240 V AC; 50/60 Hz via mains adapter (approved in medical safety standards); Batteries: 4 x AA (either Alkaline or NiMH, the latter recharged external to the instrument)
Dimensions: Base unit: Approx. 19 x 8 x 4 cm (L x W x H) Probe: 13 x 2.5 cm (max.) diameter
Weight: Base unit: 330 g (without batteries, using mains power), 430 g (with batteries) Probe: 110 g (incl. connecting cable)