-
Select the tympanometry test;
-
Check that the probe is identified as being open;
-
Start the test in manual mode and check that the internal pump carries
out pressurization cycles until the point, after a few seconds, that a
pressure loss alert is generated, then press OK;
-
Occlude the probe by placing a finger over it;
-
Check that the probe is identified as being closed;
-
Start the test manually and make certain it is carried out in a few
seconds, showing a tympanometry graph that appears blank, with ECV
< 0.2 ml;
-
If calibration cavities of 0.5 ml, 2.0 ml and 5.0 ml capacity are available,
run a tympanometry test on each one and check that the ECV value
obtained is compatible in each case;
-
If the optional acoustic reflex license is installed:
o
Select the reflex test, holding the probe open;
o
Check that the probe is identified as being open;
o
Start the test manually and check that the cycle is performed as
expected, given the reflex configuration selected; bringing the tip
of the probe closer to the ear, in noiseless conditions, the stimuli
should be audible.
Should any accessory not function correctly, see appendix
Troubleshooting.
Also, check that the calibration interval has not expired: the date is shown on the
info screen accessible from the setup menu.
Calibration must be entrusted to technicians approved by Inventis.
The operation should be performed at least once every 12 months, and
whenever a transducer is replaced.
10.2 M
AINTENANCE OF
Do not use liquids or sprays to clean the tympanometer.
Do not allow dust to collect on the transducers. Also:
-
The cushions of the headphones are made of biocompatible material but
are not sterile. To prevent the spread of infections and to ensure their
biocompatibility, they must be sanitized before being used on a new
patient using wipes dampened with denatured alcohol or a microfiber
cloth dampened with denatured alcohol.
36
T
RANSDUCERS