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section of the screen frame, just above the corresponding keys. Said functions
will vary according to the type of test being run or the menu that is displayed.
6. TEST: when in testing mode, this key enables return to the main selection page.
7. ENTER: key for accessing the tests from the main menu.
8. RIGHT – LEFT inputs for channels 1 and 2: these keys enable selection of the ear
being tested for both channels. The selected stimulus signal is thus sent to the
transducer corresponding to the selected ear.
9. OUTPUT – INPUT for channels 1 and 2: enables individual selection of the type of
stimulus and the transducer used for testing.
10. ARROW KEYS: used for the various selections provided on the menu pages. For
multifrequency audiometric testing they are used to set and enter the frequency
step and to change the base frequency setting.
11. NORM/REV for channels 1 and 2: these keys enable stimulus transmission to the
transducers. Normal mode (output signal present when pressing SIGNAL key 12).
Reverse mode (output signal not present, when pressing SIGNAL key 12).
12. SIGNAL for channels 1 and 2 (touch keys): in audiometry testing, with the channel
in normal mode, these keys enable transmission of the respective channel signals
to the transducers for the length of time they are pressed. In Reverse mode, these
keys deactivate the transducer output signal for the length of time they are
pressed.
13. FREQUENCY: these keys enable selection of the signal frequency sent to the
transducers.
14. CONTROLS: this key provides access to the external signal adjustment and
calibration page, for the monitor-headset, for the patient-to-operator mike (e.g.
for talk back) and for the operator-to-patient mike (e.g. for talk over).
15. T. OVER: this provides direct access to the talk over microphone volume
adjustment controls (for operator to patient communication).
16. START/STOP: this key enables start/stop of some of the test options (for
Autothreshold, SISI, Tone Decay, Bekesy and Speech Audiometry in clinical
audiometry testing).
17. STORE: this key enables storage and display of the values measured during
audiogram testing.
18. PRINT: if pressed from the main selection page, this key enables printing of all
the tests performed (via thermal printer, or by creating a pdf report), otherwise
printout of a single test is possible if the key is pressed directly from the test page
(with printout via the built-in thermal printer).
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