Caution
•
The probe body contains sensitive components. Never clean the
sound channels in the probe body mechanically or with liquids. Doing so may
cause damage to the probe.
Regular cleaning
•
Use a wet tissue for regular surface cleaning.
Ultrasonic cleaning
•
Use ultrasonic cleaning to remove contaminants, for instance before autoclaving.
Disinfecting
You can choose between a number of methods for disinfecting the probe tip, for
instance:
•
Immersion of the probe tip in a bath of 70-90% ethyl or isopropyl alcohol for 10-30
minutes contact time.
•
Immersion of the probe tip in a Sodium Hypochlorite solution at high con-
centrations and extended contact time (considered a cold sterilant).
When you have cleaned the probe tip, rinse it thoroughly in regular water.
Autoclaving
Use autoclaving in accordance with the national standards for vapour cleaning with an
exposure time of up to 45 minutes at a maximum temperature of 150°C.
The probe tip is designed to withstand up to 3,000 autoclaving cycles in which tem-
peratures typically reach 134°C.
Make sure that the probe tip has not been deformed by the autoclaving process.
The test cavity
Caution
•
The test cavity is located in the charger, which contains electrical components and electrical power con-
nection. Therefore:
do not
use bath or autoclaving!
If the test cavity has been contaminated with debris from the probe tip, use gas cleaning according to local hygienic stand-
ards (i.e. with ethyleneoxide, at a temperature of 55°C, at a pressure of 0.8 to 1.0 bar).
15.4.2
Changing the wax filter
Note
•
Never immerse the MADSEN OTOflex 100 probe into water or other cleaning solutions.
Changing the wax filter
If you are warned that there is a probe error, or that the probe is not OK, check whether the probe tip is blocked. If it is
not, the wax filter of the probe may be damaged or blocked by cerumen.
If this is the case, change the wax filter:
Otometrics - MADSEN OTOflex 100
165
15 Service and maintenance
