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Chapter 7 Maintenance
7.1 Storage and transportation
z Ambient temperature: -20℃ ~ 50℃
z Relative humidity: 10%~ 90%
z Ambient, atmospheric pressure: 500~1060 hPa
z Although it can be allowed to be stored up to 10 degree of slope, it is recommended
that equipment be used and stored on flat, even surface.
7.2 Sterilization and disinfection
z Sterilization and disinfection should be performed thoroughly for the items like handle
frame, chin rest and bite block among other things, with which patients’ contacts
frequently are made.
z Disinfect the affected area with 2% ammonia solution and in particular the bite block
used by previous users should be sterilized for more than 15 min. at 121℃.
z Ultrasonic cleansing, if necessary, should be carried out.
7.3 Regular maintenance and treatment
z Don’t unplug various kinds of cables by force.
z Don’t keep equipments or items susceptible to water or humidity.
z Keep those in places not affected by temperature, ventilation, sun light, dust, salt and
so forth.
z Avoid the area vulnerable to some degree of slope, vibration and shock.
z Avoid area near to chemical storage and gas-filled storage.
z Keep miscellaneous materials well organized for next use.
z In case of cleaning equipment, wipe gently the surface with soft, dry tissue evenly
In extreme case of water or any forms of liquid being spilled into the inside equipment,
turn off equipment immediately and ask help for a qualified person.
7.4 Regular checkup
z Equipment and components should be maintained on regular basis.
z When you are trying to use equipment after it has left unused for long time, always
make sure that equipment are running without any problems and then put into operation.
z Qualified persons only are allowed to get access to equipment.
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