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D00073611 Siemens SD 270 Service Manual
If a secondary headphone has been enabled (e.g. E-5A) it will then be
necessary to select the required headphone as follows:
Either - press the key under OK (on the display) to confirm the current
headphone selection
Or - press the key under CHANGE to toggle to the other option and
then OK to confirm the selection
Note: the headphone selection must be confirmed before any other
operation can be performed.
The display will then be as shown in 3.5.
To switch off, press the
key again and then the key under YES to
confirm. To cancel switch-off press the key under NO or QUIT
3.3 Operating Language
To select the operating language for the audiometer (English or German)
continue to hold the
key when switching on. An additional display will
allow the selection of English (Softkey 1) or Deutsch (Softkey 3).
3.4 Testing the patient response switch
Press the patient response switch and the light labeled RESPONSE (to
the left of the display) will illuminate green.
3.5 Audiometer display
On start-up the display will show the following default setting:-
SIGNAL
FREQUENCY
MASKING
30dBHL 1kHz OFF
< > < > THL
This indicates that when the PRESENT key is pressed, the tone presented
will be at 30dBHL at a frequency of 1kHz (1000 Hz) to the designated ear.
Please note that on start up, the audiometer defaults to the left ear.