Maico MI 24, Руководство по эксплуатации

Страница: 13 / 53

Operating Instructions MI 24, MI 24h
11
3.4.4 The display of the MI 24
The test result is shown during the measurement on the LCD. The measurements are
saved automatically and can be printed out in a fast and quiet way with the
integrated printer.
In figure 5 the initial empty
measurement screen is shown.
The measurement screen shows
actual settings, test results and
the graphical display of the
tympanogram and reflexes.
From left to right the top line
shows the type of test
(impedance is shown in Figure 5)
the selected test ear (left or right)
and the selected reflex test (
ipsi
,
contra
(optional) or
tympanogram
if no reflex test is
selected).
At the left center, the graph of
the tympanogram is shown. At the right, five boxes show the status and test values.
The upper box shows the actual status of the instrument:
READY - means that the instrument is ready for testing
IN EAR - shows that the probe is inserted in the ear
TESTING - means that the test is in progress
BLOCKED - means that probe is blocked in the ear
LEAKING - indicates that the ear tip does not have a proper seal
The boxes below Status show the volume of the ear canal, the compliance, the
pressure at maximum compliance and the gradient of the tympanogram when the
test has been completed.
The four boxes at the bottom of the screen, marked 1 to 4, show the graphical reflex
curves after the test. Below each box the test level (Figure 5: 80 dB), and the test
frequencies (Figure 5: 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz) are displayed. After
the frequency an “I” shows that ipsilateral testing is selected.
Finally, at the very bottom in (Figure 5) the word Auto and 80 dB scale is shown. This
means that the reflex test level will increase automatically until a reflex is found or the
maximum level is reached. With the arrow keys, the test levels can be changed to a
fixed level. The dB values below the boxes change accordingly. It is possible to have
fixed levels from 70 dB to 100 dB or
Auto .
Status
READY
Ear Volume
Compliance
Pressure
Gradient
Impedance Ipsi Right
ml
3
2
1
0
-600 -300 300 daPa
1
80
500 Hz I
4
80
4000 Hz I
3
80
2000 Hz I
2
80
1000 Hz I
AUTO dB
Figure 5
The measurement screen of the MI 24