Acoustic Reflex Tests | Reflex test method: Threshold, Automatic, Manual |
| Stimulus duration: 0.5, 1 or 2 sec |
| User selectable protocols for all test methods |
| Ipsi or Contralateral stimulation for all reflex test |
| Automated peak search functions available for all test
methods |
| Manual Reflex: Pump manual control of all stimuli |
| Reflex Decay: Threshold, Automatic, Manual |
| Stimulus duration: 10 or 20 sec |
Admittance Measurements | Compliance range at 226Hz: 0.05 up to 7ml |
| Sensitivity scale: Auto Scales to appropriate range,
available scale at 226 Hz 1.5, 2, 5 and 7ml |
| 678, 800 and 1000 Hz: 0 to +25 mmho |
| Sensitivity scale: Auto Scales to appropriate range, available scales at 678, 800 and 1000 Hz: 5, 10, 15, 20,25 mmho |
Air Pressure | Control: Automatic |
| Range: from +200 up to -400 daPa adjustable in 50
daPa steps |
| Pressure accuracy: ± 10 daPa or ± 10% |
| Sweep rate: 50, 100, 200, 300 daPa/sec and automatic |
| Indicator: Measured value is displayed |
| Safety limitations: -800 up to +600 daPa |
Frequency & Intensity Ranges :- Contralateral | Frequency: 250, 500, 1000, 2000, 3000, 4000, 6000,
8000 Hz |
| Noise: BBN, HP or LP |
| Frequency accuracy: ±1% |
| Calibration accuracy ±3 dB |
| Level steps: 1, 2, 5 or 10 dB |
| On/Off ratio: 70 dB minimum |
| Pure tone level range (dB HL) from 50 to 120 |
| Noise level range (dB SPL) from 50 to 115 |
Frequency & Intensity Ranges :- Ipsilateral | Pure tone level range (dB HL) from 50 to 110 |
| Noise level range (dB SPL) from 50 to 100 |
| Frequency: 500, 1000, 2000, 3000, 4000 Hz |
| Noise: BBN, HP or LP |
| Frequency accuracy: ±1% |
| Harmonic distortion (THD): less than 3% |
Intensity Range | 226 Hz: 85 dB SPL ± 2 dB |
| 678, 800 and 1000 Hz: 75 dB SPL ± 2 dB |
| Frequency Accuracy: ± 0.5% |
| Harmonic distortion: Less than 1% |
Probe Tone | 226 Hz for Admittance (Y) curve tympanometry |
| 1000 Hz for Admittance (Y) curve tympanometry with added Susceptance (B) and Conductance (G) curves |