1-4
Description
DRIVE
The asynchronous direct-drive motor is brushless for clean, quiet
operation. A tie-down screw is used to attach the rotor to the drive
shaft. The resilient suspension ensures that loads will not be disturbed
by vibration, and prevents damage to the drive shaft if an imbalance
occurs during centrifugation. Maximum acceleration and deceleration
may be selected to allow fast processing of samples; alternately,
delicate gradients may be preserved using slower acceleration and
deceleration.
CONTROLS AND INDICATORS
POWER SWITCH
The power switch, located on the back panel, controls electrical
power to the centrifuge. It is also a circuit breaker that will trip to cut
off power in the event of a power overload. The power switch must be
turned on before the chamber door can be opened.
CONTROL PANEL
The control panel (see Figure 1-2), mounted at an angle on the
centrifuge front for easy visibility and access, comprises touch
keys—system keys and parameter keys—and digital displays. The
panel also contains an IMBALANCE light that flashes if rotor loads
are severely out of balance.
Figure 1-2. Control Panel
SPEED
TIME
ACC/DEC
IMBALANCE
ENTER
PULSE
ACCEL
DECEL
TEMP
RPM
RCF
ROTOR
TIME
STOP
START
FAST
STOP
OPEN
DOOR