GSI
Allegro Tympanometer
User Manual
D-0120695 Rev D 2022-06 Page 30
ROUTINE MAINTENANCE
CLEANING THE ALLEGRO
WARNING
Electric shock hazard. Before cleaning the device, disconnect the power cord from
the power source and the device.
Take care to prevent water or other fluid from entering any connectors on the
device. Should this occur, dry the connectors and check the accuracy of all
operating functions. The device is not heat-resistant. Do not autoclave
The Allegro is a precision instrument. Handle it carefully to ensure its continued accuracy and
service. Use a soft damp cloth and mild detergent to clean the instrument panel and case when
required. Ensure no moisture enters the instrument. If low-level disinfection is required, the
following agents are compatible with the plastic device housing:
• 70 percent isopropyl alcohol
• 10 percent bleach/90 percent water solution
• CleanCide Wipes (Wexford Labs)
• Hydrogen Peroxide Cleaner Disinfectant Wipes (Clorox Healthcare)
• Dispatch® Hospital Cleaner Disinfectant Towels with Bleach (Clorox Healthcare)
EARTIP AND PROBE
WARNING
Handle the probe and accessories with care. Do not allow moisture, condensation,
fluids or debris to enter the probe.
Ear tips should be replaced after a single use.
The probe tip and its associated sealing washer are disposable devices. The probe tip should be
checked before each ear insertion to ensure it is undamaged and that none of the tubes through
it are blocked. It should be replaced if necessary.
The small holes through the probe tip must be kept clear. If these become blocked a warning
message will be displayed. The tip must be removed and cleaned or replaced.
To remove the tip, unscrew the nose cone and pull the tip off the probe boss. A small seal will
be found in the base of the probe tip. This should be examined and replaced if it is damaged. Do
not remove the nut securing the boss to the body of the instrument.
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