RC12
BP™
Controls, Indicators, and Displays
3-9
FOR EXAMPLE :
The programs at right are listed in correct
order for using QC RUN; PROG # 5 (with
factory default settings) will be ignored
by the centrifuge when performing the
run (program values shown are for
example purposes only, actual set
parameters will vary).
If, during the QC RUN, an observed RUN display temperature is
not within ±2°C of SET temperature (as could be the case when
there is a significant temperature change with a short run), the
centrifuge will continue to repeat that step of the QC RUN
sequence until the observed temperature is within range. The
data will not be logged until the programmed run is completed
successfully, at which time the centrifuge will move on to the
next set of programmed parameters.
NOTE If you plan on using the QC RUN feature, consider the
following as you save runs to program memory:
• QC RUN programs should not use HOLD.
• Programs with factory default settings of SPEED=400
rpm, TIME=00:00, and TEMP=40 will be ignored in
the QC RUN sequence.
• Although you may choose otherwise, to minimize the
time it takes to perform a QC RUN, we recommend
the following: Starting with program 1, save runs to
program memory in order – sorted first by temperature
(highest first), then, if there is more than one run at a
single temperature, by speed (lowest first).
ROTOR SPEED TIMED DEG C PROG #
H12000 2900 04:00 22 1
H12000 4000 03:00 22 2
H12000 3800 03:45 4 3
H12000 4700 05:30 4 4
H12000 400 00:00 40 5
While the QC RUN sequence is in progress, the centrifuge will
output (to a connected computer) the observed speed and
temperature along with the SET speed and temperature for
automatic data logging and simple performance verification.
• SLOW START chooses gentle acceleration from 0 to 250 rpm
(acceleration transitions to the normal, maximum rate at 250
rpm), with the slow start rate defined by selection of one of ten
different acceleration profiles. The profiles are numbered for
ease of selection, with number 1 being the slowest, most gradual
rate, and each successive rate being incrementally faster up to
number 10.
• SLOW STOP chooses gentle deceleration from 500 to 0 rpm
(normal deceleration braking from set speed transitions to the
more gradual rate at 500 rpm), with the rate defined by selection
of one of ten different deceleration profiles. The profiles are
numbered for ease of selection, with number 1 being the slowest,
most gradual rate, and each successive rate incorporating
incrementally more braking up to number 10. Particularly when
To Next Page