Hitachi CR22N Instruction Manual page 5

SAFETY NOTICES
○Mechanical Safety
WARNING： For operator safety, maintain a 30-cm "clearance envelope" around the instrument
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while the rotor is spinning.
developing flammable or explosive vapors on nor near the centrifuge.
Do not attempt to unlock the door forcefully while the rotor is spinning.
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Do not attempt to slow or stop the spinning rotor by hand.
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Check the chemical resistance chart provided with the rotor, and do not use any
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sample inapplicable to the rotor (including the buckets). Using such a sample
could corrode the rotor (including the buckets).
Do not incline or move the instrument while the rotor is spinning. Do not lean on
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the instrument.
Do not exceed the maximum rated speed of the rotor or buckets in use.
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Do not use corroded, scratched or cracked rotor, buckets and assemblies. Check that
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the rotor, buckets and assemblies are free of such abnormalities before operation.
When using a swing rotor, check that the buckets are properly engaged with the
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rotor pins before operation.
instrument. Be sure to set all the buckets of the same serial number.
When pressing the START button after closing the centrifuge door, the door is
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locked and the operation starts. When the door is locked, you can hear the beep
sound from the centrifuge. When the door is locked, do not catch your fingers and
objects in the space between the centrifuge door and the centrifuge table. Failure to
do so can cause your fingers to be injured and failure to do so can cause the
centrifuge to be damaged.
If abnormal sound or vibration occurs, stop the operation immediately and contact a
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Hitachi Koki authorized sales/service representative.
CAUTION： Before using a rotor, be sure to read through the rotor instruction manual.
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Check the chemical resistance chart attached to the rotor, and do not use any
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sample inapplicable to the tubes, the bottles, the tuberacks, the microplates or tube
/ bottle caps, etc. Using such a sample could deteriorate such parts.
Maximum rotor speed depends on the buckets, assemblies, tubes or adapters to be
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used. Follow the instructions on the rotor instruction manual.
Do not exceed the allowable imbalance.
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Use the rotor tubes and bottles within their actual capacities.
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Do not use tubes/bottles that have exceeded their life expectancy. Failure to do so
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could result in damage of tubes/bottles and the rotor and the centrifuge. The life
expectancy of tubes/bottles depends on factors such as the characteristics of
samples, speed of the rotor used, and temperature. Always check for deterioration
and damage (cracks, deformation, and so on) on tubes/bottles before using them.
Do not use the tubes/ bottles if you find such a problem.
Be sure to mount the rotor cover if provided.
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completely secured with a screw if provided.
Mount the rotor onto the drive shaft gently and properly. Do not drop the rotor or
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apply excessive force to the drive shaft to avoid damage to the drive shaft.
Clean the inside of the drive hole (crown hole) of the rotor and the surface of the
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drive shaft (crown) of the centrifuge once a month.
When storing the rotor on a shelf, make sure that the shelf is secured (for example,
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to avoid the rotor from dropping during an earthquake).
If dewdrops are in the rotor chamber, drain the chamber through the drain hose to
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prevent the sample to get mixed up with them or prevent them from leaking into the
drive unit. Be sure to recap the drain hose after drainage.
Do not pour any liquid such as water, detergent and disinfectant directly into the
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rotor chamber.
If you do so, the bearings of the drive unit might corrode or deteriorate.
Do not operate the display panel (Touchscreen) using a ballpoint pen.
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Before relocating the centrifuge, remove the rotor from the rotor chamber to avoid
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damaging to the drive shaft.
Do not store dangerous substances capable of
Wrong setting can cause severe damage to the
Check that the rotor cover is
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