Maico MA 42 Operating Instructions

Operating Instructions MA 42
Operating_Instructions_8100460-6_MA42_e_15a 19 8100460-6 1/15
5.1.6.1 Preparation of the SISI Test
To start the test select SISI with the functional selector button (13), choose OT
Tests and SISI Test.
Select the test frequency with the frequency keys (4), (5). For the test you should
choose the frequency where the maximum bone conduction hearing loss is
measured as described in chapter 5.1.2.
Adjust the test intensity with the level control dial (1) to a value of 20 dB above
the individual hearing threshold.
Recognize that in the SISI mode the test is presented continuously. You can
interrupt the test by pressing the PAUSE (9) button. Press START (19) to resume
the test.
The patient must be instructed: "You will now hear a continuous tone. Every
time it becomes louder, immediately push the switch”.
5.1.6.2 Training of the Patient
Only with careful training during the following conditioning phase a valid test
result can be achieved.
The training starts with level steps of 5 dB. That means a continuous tone, e.g.
65 dB
HL
, is briefly increased by 5 dB, e.g. to 70 dB
HL
. During the increment time,
a green box is shown in the middle of the LCD display. The number of detected
(recognized) increments is counted and shown on the display. Furthermore, the
number of presented (given) increments is shown.
When the patient has understood the procedure of the test press the “Inc”
button (11) to select the level increment for the test (i.e. 1, 2, 3, 4, or 5 dB
increments).
Figure 6 Start screen SISI Test

Maico MA 42 Specifications

General

Brand	Maico
Model	MA 42
Category	Medical Equipment
Language	English