Maico MA 53, Руководство по эксплуатации

Страница: 21 / 56

Operating Instructions MA 53
Geba_MA53_e_13a.doc 19 851 430/3 11/11
4.5.1.2 The DLI (Lüscher) Test
The Intensity D ifference LI men for loudness test (or J ust N oticeable
D
ifference,
JND
) is another recruitment test. A pure tone is amplitude
modulated at a rate of 2/second. The patient has to determine whether this
signal was steady or undulating (beating).
To start the test select a modulation
amplitude from 0.5 dB to 4.0 dB in the
suprathreshold menu (as decribed before
under 4.5.1) and press the STIM bar

or

↔.
The LCD-display

shows DLI, along with the chosen modulation amplitude
(see picture 18).
Now adjust the required test level with the level control knob

or

↕ and
present the test signal by pressing the STIM bar

or

↔.
To exit the test press the PULSE buttom

longer than 2 seconds. The
suprathreshold tests menu is now displayed. To exit the suprathreshold test
menu briefly press the FM button

.
Picture 18 MA 53 display with DLI test