Operation Manual MA 41
8100456 Rev.9
33
01/16
7.2.2 Tone Audiometry
Frequency Selection
Use one of the two sets of frequency keys (4) or (5) to select the frequency. The
maximum and minimum frequency depends on the transducer you have
selected.
Warble Tone
Press the Test Signal button (12) to activate the warble tone. The LED will
highlight Warble.
Pulse Tone
Press the Test Signal button (12) to activate the pulse tone. The LED will
highlight Pulse.
Tracking Function
Press the TRACK key (14) to activate tracking. Both channels will adjust when
only one attenuator is adjusted.
Lock Function
Press the LOCK/UNLOCK (14) key to activate the interlock function. Signals
from both channels will be presented simultaneously with the press of only one
STIM button (2). If both ears are selected, LOCK is automatically activated.
Select L&T (14) to interlock the stimulus presentation of both channels as well
as the tracking of the levels.
STIM Mode Selection
Press STIM MODE (8) key to switch between continuous presentation and
presentation by pressing the STIM button (2). When in continuous presentation
mode the STIM buttons function as interrupters. The light above the STIM
MODE key is on if continuous presentation is selected.
CD and Wave speech signals are always in continuous presentation.
Talk Forward Microphone
Press and hold the STIM MODE (8) to activate Talk Forward. Adjust the level by
turning one of the attenuator dials (1) while in the mode.
Talkback Microphone and Monitor Volume Control
Press the Monitor key on the left side of the display and the volume control
bars for talkback and monitor are shown.
Adjust the monitor volume with the right and left dials (1). Adjust the talkback
microphone volume with the plus/minus keys (4) or (5).
To store the actual settings press OK (19).
Summary of Contents for MA 41
Page 1: ...Operation Manual MA 41...
Page 2: ......
