Safety Features; Name Rating Plate; Chassis; Housing - Beckman Coulter Allegra 21 Series Instruction Manual

SAFETY FEATURES

NAME RATING PLATE

CHASSIS

HOUSING

The Allegra 21 series, GS-15 series, and Spinchron 15 series centrifuges
have been designed and tested to operate safety indoors at altitudes up to
2000 m (6562 ft). Instrument safety features include the following:
• The door has dual electromechanical door-locking mechanisms to
prevent operator contact with spinning rotors. When the door is
closed it locks automatically. It can be unlocked only by pressing the
[ ] key, and opened only when the power is on and the rotor
OPEN DOOR
is at rest. Two independent monitoring systems prevent the door from
opening if the rotor is spinning.
• A steel barrier surrounds the rotor chamber to provide full operator
protection.
• An overspeed system continuously monitors the rotor during centrifu-
gation. The system includes a magnetic sensor on the drive motor and
magnets imbedded in the rotors. Throughout the run, checks are made
to ensure that the rotor does not exceed set speed.
• An imbalance detector monitors the rotor during the run, causing auto-
matic shutdown if rotor loads are severely out of balance. At low
speeds, an incorrectly loaded rotor can cause imbalance. Rotor insta-
bility can also occur if the centrifuge is moved while running, or if it is
not resting on a level surface.
• Rubber pads on each of the centrifuge feet have been designed
to minimize possible rotation in the event of a rotor mishap. For
additional protection, an anchoring system is provided to secure the
centrifuge in place. The anchoring system is designed to reduce the
possibility of injury or damage which could result from instrument
movement in the event of a major disruption.
The name rating plate is affixed to the rear of the centrifuge. Check that the
line voltage agrees with the voltage listed on this name rating plate before
connecting the centrifuge. Always mention the serial number and the
model number shown when corresponding with Beckman Coulter
regarding your centrifuge.
The centrifuge housing is made of sheet steel, finished with urethane paint.
The control panel is covered by a protective overlay made of coated
polycarbonate.
Description
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