Use a non-alcohol based wipe (e.g. Audiowipe) to clean the headphones and bone conductor between patients.
•
Eartips for Insert Earphones
The eartips are single use and should be disposed of after use.
Disposal
There are no special requirements for the disposal of eartips, i.e. they can be discarded according to local regulations.
9.4
Calibration
Annual calibration
The audiometer, headphones, bone conductors, and sound field speakers must be calibrated once a year by your author-
ized service department.
Remote calibration
You can order a transducer and get the calibration data installed via remote support. The calibration data is included in
your shipment on a USB memory stick (or supplied by technical support during the installation).
To import calibration data:
1. Connect the new transducer to your audiometer.
2. Connect the audiometer to your Otosuite PC.
3. Insert the USB memory stick in an empty slot on your PC.
4. Call your Natus technical support team. They will use the application TeamViewer to ensure correct remote install-
ation of the new calibration data on your system.
TeamViewer is located at
Help
>
Remote support
.
The technician installs the calibration data via the menu function
Tools
>
Audiometer service
. The data is password
protected.
5. When the installation has ended, hold the new transducer within hearing distance and cautiously perform a listening
check.
The purpose of the check is to ascertain that the transducer is functioning correctly (without wrong or excessive sound
levels), not to verify the exact calibration.
Note
•
Note that calibration has been performed only on the transducers supplied. If you wish to use any other trans-
ducer for testing with the device, please contact your local distributor first.
Madsen A450
83
9 Maintenance and calibration
