Instrument type: Screening tympanometer
Analysis performed: Compliance peak level (in ml). Pressure of same; Gradient (in daPa); Ear Canal Volume (ECV) @ 200 daPa.
Probe tone levels and accuracy: 226Hz +/-2%; 85dB SPL +/-2dB over range 0.2ml to 5 ml.
Pressure levels and accuracy: +200daPa to -400 daPa +/-10daPa or +/-10% (whichever is larger) over range.
Ear volume measurement rang and accuracy: 0.2ml to 5ml +/-0.1ml or +/-5% (whichever is larger) over entire range.
Sweep speed: Typically 200-300daPa/sec; dependant on ear&cavity volume.
Pressure limits (safety cutout): +600 to -800daPa
Number of samples stored: 100 per tympanogram