OSCILLA SM960-C - Interrupter; Output Selector; Input Selector

ID: 1614 / ver. 210
7
4.2 Interrupter
With the interrupter button
you activate the signal.
The light will shine as long as
the signal
is present.
4.3 Output selector
The output from the device is chosen by means
of the output selector, which allows the choice
of 5 different ways
of output.
The lamps will indicate which
output is selected.
For both channels you may choose:
- Right and left telephone
- Bone conductor
Channel 1:
- Free field
Channel 2:
- Insert phone
The output selector on channel 1 is operated in a special way: By pressing the button you choose between right and
left earphone. To select bone conductor hold down SHIFT while activating the output selector. The bone indicator
lamp will light up, whereas right or left indicator lamp will remain ON.
When you activate the output selector again without SHIFT, you toggle between right and left BONE CONDUCTOR.
The reason is that the device will have to ‘know’ at which side the bone conductor is placed, to get the correct
symbols on the screen and/or on the printout. This also means that the signal will always be through the same output,
no matter if right or left bone conductor is chosen.
To choose FREE FIELD once again you should hold down the SHIFT while activating the output selector. The RIGHT-
LEFT lights will turn off, as there is no option of right or left FREE FIELD.
4.4 Input selector
By means of input selector you choose the input
signal, which gives you 6 different options. May
be used on both channels.
The lamps will indicate which
input is selected.
TONE:
M
IC:
TAPE:
NB:
SN:
WN:
Standard sinus tone for threshold test.
Build
-in microphone meant for either speech
audiometric or for communication to the patient.
The connector marked with “TAPE” on the back of the
device, for either tape
-recorder or CD player.
“Narrow Band” noise for masking.
“Speech Noise” for masking.
“White Noise” also for masking.
For technical reasons: If one channel is on TAPE you can not at the same time choose MIC on the opposite channel.
When performing a standard threshold test channel 2 should be used for masking, if you want to store data.