otometrics Madsen Midimate 602 Quick Manual page 23

MIDIMATE 602 & 622 Diagnostic Audiometers
5. Instruct the patient in how to use the patient response handswitch.
6. Press Menu until the Select Function menu is displayed.
7. Press Softkey 3, Special.
8. Select Rainv. from the Select special Test menu by pressing Softkey 4.
9. Turn the Frequency wheel to select the desired test frequency.
10. If required, toggle Softkey 2 from C/P/W to C/P/W to select a pulsed tone
stimulus.
11. Turn the Hearing Level wheel to select an R:Tone level about 5 dB above
threshold.
12. Press the Tone Switch to apply the tone stimulus in the headphone.
13. Gradually increase the level of NBN in the Bone Conductor by turning the Mask-
ing Level wheel until the patient no longer responds when the stimulus is ap-
plied.
14. Evaluate the bone threshold at the current frequency by subtracting 3 dB from
the masking level.
15. Exit the test by pressing Menu.
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