21
D-0126050 rev 1 -
270+ Operating Manual
4.6.6.
SIGNAL
4.6.6.1.
SELECTION OF TONE AND SPEECH MODULE
Select
SIGNAL
to change between
TONE
and
SPEECH
audiometry.
For
TONE
audiometry the option is given to use sinusoid or warble stimuli. Select
F1
for
SINE
to present a
sinusoid signal. Pressing
F2
will present a
WARBLE
signal in the tone audiometry test.
For
SPEECH
select
LINE
for using external speech files, such as from a CD player. Select
MIC.
to use the
microphone to present speech to the patient. After selecting
LINE
or
MIC.
, the speech module will open.
Select
SIGNAL
button again to leave the menu without changes.
4.6.6.2.
CONTINUOUS, PRESENT AND PULSE
In the tone audiometry module, select
F1
to choose between present, pulse, continuous and continuous pulse.
Select
NORMAL
to start the present mode.
PULSE
will activate a pulsed signal in present mode. Select
CONT.
to change the presentation mode to continuous presentation.
C.PULSE
will activate a pulsed continuous test
signal.
4.6.7.
EAR (SELECTION)
Select the
EAR
button to change the current selected ear. You can also use softkey
F4
to change the ear
selection.
In addition to the on-screen display of the selected ear, the LED-light around the Channel 1 rotary control will
light in the colour of the selected ear (right = red, left = blue).
Right ear selected (red light)
Left ear selected (blue light)
Summary of Contents for 270+
Page 1: ...270 Operating Manual...
