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Page 10 of 25 SPEX SamplePrep LLC 9.24.07
6) Third cycle: the coil is activated for the final 2-minute cycle. When it is done, the
program is over and the sample has been ground for a total of 6 minutes.
5.3 STATUS SCREEN
To run the program displayed on the CURRENT SETTINGS screen, touch “Start SCRN.” This
transfers you to the STATUS screen, which allows you to start the mill, stop it, or pause in the
middle of a grinding program. (To change the settings, touch RTN on the STATUS screen to go
to the CURRENT SETTINGS screen. Touch SETTINGS to go to the SETTINGS screen, and see
Section 5.4 for instructions.)
In the STATUS screen, the STATUS line displays the stage of the program: in a typical program,
the sequence is STATUS: PRECOOL, STATUS: GRINDING, STATUS: COOL DOWN,
STATUS: GRINDING, etc., to the end of the program, which is displayed as STATUS: RUN
COMPLETE. Before a run this screen displays STATUS: STANDBY.
STATUS: STANDBY
Time Remaining: 0:00
Cycles Remaining: 0
RATE: 10
----------- I -------
PAUSE
RUN
STOP
RTN
STATUS SCREEN before a run
To start the Freezer/Mill, press RUN. Before you do this, fill the tub with liquid nitrogen, place
a loaded vial in the coil, and latch down the lid.
If there is not enough liquid nitrogen (LN) in the mill, the STATUS line of the STATUS screen
will display STATUS: LOW LN LEVEL.
If the lid is not down and latched, the STATUS line will display STATUS: LID UP.
If the mill is filled with LN, and the lid is latched down, the STATUS line will initially display
STATUS: INITIALIZING, then STATUS: PRECOOL. That marks the beginning of the
grinding program.