Thermo Electron SORVALL RC3BP, Operating Instructions Manual

Page: 45 / 64

Operation SORVALL

Centrifuges
4-10
SELECT STEP RUN?
This screen allows you to link together up to three sets of run
parameters from program memory to create a step run. If the
desired parameters have not been entered into memory, you
must save each desired set of parameters to memory before
continuing with step run creation.
To create a step run, input a program number 1-9 for the first
portion of the step run. The SET screen will prompt for another
number, input a program number 1-9 for the second portion of
the step run. The SET screen will prompt for another number,
and you can either press ENTER (if you are creating a two-stage
step run), or input a program number 1-9 for the third portion of
your run.
NOTE
When step run is selected, the specified programs should
all be appropriate for use with the same rotor.
So that runs are not inadvertently corrupted, whenever STEP
RUN has been selected (indicator lit), changes to run param-
eters will be ignored unless STEP RUN is deselected before
START is pressed. Because of this, the only changes that could
be made without deselecting would be if a different step run
was recalled from program memory (program numbers 10-15).
After STEP RUN selection, SELECT SAVE RUN? will appear in
the display. For future use, step runs may be saved to program
memory, and can occupy program number 10-15.
SELECT SAVE RUN?
This screen allows pre-programming of up to 15 different sets of
run parameters (9 standard runs, and 6 step runs) for future
simple recall and error-free run reproducibility of frequently
used protocols. To eliminate inadvertent loss of existing pro-
grams, the storage sequence alerts users before overwriting.
The convenient RECALL key allows browsing through existing
programs for selection or reference.
NOTE
If you plan to use the QC RUN feature, specific guidelines
should be considered when saving parameters to memory
(see QC RUN on page 3-6).
To save a run, all run parameter selections should be made
before selecting this option. After SAVE RUN selection and
assignment of a program number, the SET display will return to
the HOME screen. See Programmed Operation on page 4-4.