Table of Contents
Advertisement
Note When changing mode, rpm/RCF values may appear a digit or two off from the original set
value. The centrifuge translates set RCF values to rpm whole numbers for speed control purposes,
then calculates that rpm whole number to the closest RCF value. There is no cause for concern;
speed control accuracy is not compromised, and the slight value difference will not affect your run
The run duration (from start to termination, when deceleration begins) setting or control method is
changed by pressing one of these three PRIMARY FUNCTION KEYS:
TIME
• Press the TIME key to specify a length of time (minutes and seconds, to a maximum of 99:59)
from run start to termination.
• In the RUN DISPLAY, minutes and seconds begin counting down from the input value when
START is pressed.
• The run terminates and deceleration begins when the timer reaches zero.
HOLD
• Press the HOLD key to specify a continuous run which, once started, runs until STOP is pressed
(terminating the run and initiating deceleration).
• During a continuous run, HOLD will be in the SET DISPLAY, and the time elapsed from when
START was pressed will appear in the RUN display.
• The timer will accumulate up to 99 minutes 59 seconds - if a run continues beyond that, the
displayed run time will remain fixed at 99:59. Whenever it is possible for such an extended run to
occur, an external timing method is recommended.
ACE
• Press the ACE key to specify an Accumulated Centrifugal Effect™ value.
• When ACE control is selected, the centrifuge calculates the effect of speed in relation to time (the
shaded area in the illustration below), adjusting run duration to account for acceleration variation.
This variation can be attributed to rotor load/configuration differences (affecting inertia),
fluctuations in line voltage (affecting motor power), or slight mechanical differences including
normal wear.
Thermo Scientific
Termination Set Point
TIME
3
Control Panel
PRIMARY FUNCTION KEYS
RC 12BP+
3-5
Advertisement
Table of Contents
