
188 BD FACSAria II User’s Guide
Daily Shutdown
In the BD FACSAria II system, the recommended daily shutdown procedure is to
run the Clean Flow Cell command with the closed-loop nozzle installed (see the
next section). This procedure fills the flow cell with cleaning solution. This is
normally sufficient to keep the flow cell clean and operating properly.
If the system is used to process many different sample types, or the system has
problems with contamination, you can perform a more extensive cleaning by
running the Fluidics Shutdown command. See Fluidics Shutdown on page 190.
In addition to one of the choices listed above, you should also perform an
external cleaning. See External Cleaning on page 193.
Clean Flow Cell
Use the Clean Flow Cell command to run a tube of cleaning solution through the
sample line and flow cell. This procedure can be used in two ways:
•As the daily shutdown procedure
• Any time poor optical performance indicates that additional cleaning is
needed.
NOTE After the procedure is complete, the cleaning solution remains in the flow
cell until the stream is restarted.
To run Clean Flow Cell, do the following:
1 Turn off the stream.
2 Remove the nozzle and install the closed-loop nozzle. See Figure 6-1 on
page 191.
Verify that there is an O-ring in the closed-loop nozzle before installing it.
3 Select Cytometer > Cleaning Modes > Clean Flow Cell.
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