Product Manual

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19
Routine Maintenance
Preventive maintenance
To maximize the service life of the audiometer and headset, the following is
recommended.
1. Turn the instrument off when not in use.
2. Dust the instrument occasionally with a soft, dry cloth.
3. Wipe the headset cords and ear cushions occasionally with a warm damp cloth.
4. Leave the earphones connected to the audiometer permanently to minimize straining
the connections. Should it be necessary to remove the headset, always grasp the
barrel of the connecting plugs and pull straight out - never pull on the cords.
5. Avoid dropping the earphones or snapping them together as this could affect the
calibration accuracy.
Cleaning patient contact reusable devices
To help ensure patient safety, prevent cross infection, and provide effective service, Welch
Allyn devices must be properly maintained. Maintenance should include cleaning before
each use. The earphone cushions and patient hand switch can be wiped with a slightly
damp cloth containing soap and water, isopropyl alcohol, ammonia based cleaners or
bleach based cleaners. Gently wipe the earphone cushions with the slightly damp cloth.
Prevent moisture from entering the speaker portion of the earphones.
Routine calibration check
The length of time that an audiometer should be operated before re-calibration varies
depending upon the use and treatment of the instrument and its headset. It is
recommended that the instrument be fully calibrated by a certified Welch Allyn technician
annually.
It is recommended that a biologic calibration check is established as soon as the
instrument is received.
1. Make several careful tests of the operators hearing and record the results properly on
the audiogram cards provided with the instrument.
WARNING It is recommended that all repairs be performed by a qualified
service representative. Any malfunctions resulting from improper maintenance or
repair by anyone other than an authorized representative will void all warranties.