Operation Manual MA 27 / MA 27e
8104818 Rev.2.0
28
04/16
4000
100
6000
100
8000
90
Inputs:
Patient response switch (MA 27e),
USB-Power-Supply
Outputs:
Left AC, Right AC 10 ohm impedance
Attenuator:
-10 to 100 dBHL in 5 or 1 dB steps (chosen in
set-up menu).
Tone Presentation: Manual or reverse (chosen in Setup Menu);
Multiple pulses 250 or 500 msec (chosen in Setup Menu);
On/Off; pure tone or warble tone
Talk Forward (MA 27e):Built in talk forward microphone. 60-100
dBHL. Continuously adjustable on operation panel.
Auto Threshold: Patient
controlled
Hughson-Westlake
procedure according to ISO 8253-1
Store Function: Soft key (F-key) store button and internal
memory for AC L/R. Stored measurements can be viewed on
built in display.