Operating Instructions MA 41
8100456_OI_MA41_EN_15a 10 8100456-8 04/15
Tone: Select New, to delete all stored results and start a new session
Speech: Reset the result percentage counter or Play wave file
(8)
Channel STIM Mode button/TALK: to change from presenter to
interrupter mode, or to talk to the patient by pressing and holding the
button down
(9)
Functional selector button: to select left, right or both ears
(10)
Transducer selector button: to choose between Phones, Insert, Bone and,
Speaker (only calibrated transducers are available)
(11)
Functional selector button: function is displayed on the screen
Tone: No response, stores value with arrow below the symbol
Speech: Select microphone, external CD player or wave file as signal
source
(12)
Test Signal selector button: Steady, Pulse, Warble, or P&W (pulse and
warble tone)
(13)
Function selector button: function is displayed on the screen
Tone: Selects test for selected receiver, either the pure tone threshold,
Hearing Level (HL) or Uncomfortable Loudness (UCL); if Speaker is
selected as the transducer an option for aided sound field threshold
(Aided) is also made available
Speech: Select Speech Recognition Threshold (SRT), Word Recognition
Score (WRS), UCL or Master Hearing Aid (MHA); if Speaker is selected as
the transducer Aided can be selected to record aided sound field test
results
(14)
Select Unlock: Lock (locks the presentation of the signal in both
channels), Track (activates the masking noise to automatically increase
and decrease level in relationship to the signal), L&T (Lock and Track)
(15)
Functional selector button: function is displayed on the screen: Masking
on/off, activates masking in the opposite ear
(16)
Functional selector button: to switch from tone to speech and back; the
current function is displayed on the screen
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