otometrics MADSEN Alpha OAE, User Manual

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9.1.3 Probe calibration
The Alpha OAE probe is calibrated at the factory prior to delivery. This is why there may not be a full year to the next cal-
ibration date stated on the calibration certificate when you receive Alpha OAE.
The first time you connect the probe to Alpha OAE and perform a test, the calibration date will be set so that there is one
year to the next calibration.
To view the next calibration date, select
Settings > System info
. Before you perform the first test, the date field will be
blank.
Calibration frequency
The probe should be calibrated annually by authorized service personnel at an authorized workshop.
9.2 Eartips
Eartips are disposable and should not be cleaned.
Note
•
Eartips should be disposed of according to local regulations.
9.3 Cleaning Alpha OAE
• Before cleaning, switch off Alpha OAE and unplug it from any external power source.
• Unplug the probe from Alpha OAE.
• Use a moist tissue with alcohol to clean the surface of the device.
Caution
•
Always make sure that no moisture enters the probe, the sockets (data interface connector and probe
plugs) or the test cavity.
Caution
•
Never immerse Alpha OAE into water or other cleaning solutions.
Caution
•
Use of cleaning agents other than those recommended in the user manual can cause damage to the
device (for example, stress cracks in molded plastic).
9.3.1 Cleaning and disinfecting the test cavity
If needed, use a moist tissue with alcohol to clean the entry surface of the test cavity.
Caution
•
Make sure that no liquid enters the test cavity.
Otometrics - MADSEN Alpha OAE 47
9 Maintenance and Cleaning