15.3
Maintenance
MADSEN OTOflex 100 requires no preventive maintenance. However, it is recommended that you observe the guidelines
described in
•
•
Probe cleaning and maintenance
•
•
Cleaning and disinfecting the probe tip
15.3.1
Calibration
The device and the probes are delivered fully calibrated.
•
The device is calibrated from the factory in dB SPL or dB HL using the stated reference equivalent thresholds. dB HL
are related to sound pressure levels, dB SPL = dB re 20
µ
Pa.
•
The probe calibration values are saved in the probe assembly and follows the probe. The probe can be plugged to any
MADSEN OTOflex 100 and used right away. This also applies to the contra insert phone.
Annual calibration
The immittance device and probes must be calibrated once a year by your authorized service department.
15.3.2
Probe cleaning and maintenance
Note
•
Never immerse the MADSEN OTOflex 100 probe into water or other cleaning solutions.
The probe body
Caution
•
For periodical cleaning of the probe body, contact your authorized service department.
The probe tip
Note
•
Never place the probe tip in the ear canal without using a clean eartip.
The probe tip usually does not come into contact with the skin or secretion from the ear canal, as it is covered by the ear-
tip. However, in some cases large amounts of cerumen in the ear canal may result in debris being deposited on the probe
tip. If this is the case, clean the probe tip sound channels with the cleaning wire.
Note
•
Check the channels in the probe tip every time you have used the probe. Even small amounts of cerumen
or vernix can block the probe channels. Clean the channels if needed.
162
Otometrics - MADSEN OTOflex 100
15 Service and maintenance
