Operating Instructions MI 34 / MI 34 H
GEBAmi34e.11a.docx
13
850 232/14 08/11
3.7 Calibrate the probe
With the calibration test cavity you can adjust your impedance with
measuring instrument. Do the same when you change the probe (from
screening probe to diagnostic probe and vice versa). The calibration is very
easy and takes only 20 seconds.
Press the menu key
Ê
and the main
menu (figure 6) appears on the LCD
display
Ç
. Select the menu option
Calibration with the Down button
Ì
.
Press Enter
Ï
and follow the instructions
on the LCD display
Ç
, as shown in
Figure 7.
Put the probe tip
È
without ear tip into
the hole of the test cavity labeled 0.5 ml
and wait. When the text on the display
Ç
changes to the request for the 2 ml
calibration put the probe tip
È
in the 2
ml cavity and proceed as described above. After the successful calibration
of the 5 ml volume the MI 34 switches automatically to the tympanometry
mode. The basic menu for the impedance measurement appears again and
you are ready for measurements.
If the error information
Cavity
calibration out of range
appears
during the calibration please control if
the opening of the probe tip
È
is clean
and try to recalibrate the probe. For
more information about cleaning the
probe also read Chapter 10: Cleaning
the probe.
If the error information appears again,
the probe or the instrument is probably
defect. Inform your service to get
immediate help.
Main Menu
Tympanometrie
:
Reflex
Decay:
ETF
Intact
ETF
Perforated
Caibration:
Setup
:
↑
↓
Change item
ENTER
Select item
Figure 6
Display MI 34 Main Menu
Figure 7
Display MI 34 Calibration
Calibration
Place the porbe in the .5 ml cavity
Probe
