3-14
Operation
CHANGING TIME SETTINGS
• To increase or decrease the remaining run time, turn the knob to
the new run time. The system will add the new remaining time to
(or subtract from) the time already elapsed, and the display will
show the new remaining run time.
If you turn the TIME knob to a value less than the length of time
the centrifuge has already been running, the run will end and the
rotor will begin to decelerate immediately. For example, if the
centrifuge has been running for 20 minutes and you turn the knob
until 10 shows in the display, the run will end.
• To set a completely new run time while a timed run is in progress,
turn the TIME knob to the new time setting and press
_78%68a
. The
system will ignore any elapsed time.
• To change from HR:MIN mode to HOLD mode, press the
key. The display will show the total accumulated run
time and will begin counting the time elapsed from that point.
• To change from HOLD mode to HR:MIN mode, press the
key and turn the TIME knob until the run length
appears in the display. Press
_78%68a
. The system will ignore
any elapsed time and will begin displaying the time remaining
in the run.
STOPPING A RUN
A timed run ends automatically when the
TIME
display counts down
to zero. “End” will flash in the
TIME
display. To end a HOLD run or
a run in progress for any reason, press
_7834a
.
➠
NOTE
If a diagnostic condition causes the run to stop,
with or without use of the brake, the appropriate
diagnostic message will light and the light on the
_7834a
key will flash until the rotor comes to a
complete stop.
TIME/HOLD
TIME/HOLD