
276 BD FACSAria II User’s Guide
Switching From the Violet to the Near UV Laser
The system should be turned on and all cytometer startup procedures performed
before using the Near UV laser. Refer to Cytometer Startup on page 114 for
information on these procedures. This section provides an overview of the steps
involved in switching to the Near UV laser in a four-laser system.
1 Place the Near UV/OFF/Violet laser switch in the Near UV position.
This turns on the Near UV laser and turns off the violet laser. Allow the
Near UV laser to warm up for 30 minutes before recording data.
2 Set the cytometer configuration to a custom configuration that includes
parameters for the Near UV laser.
It is a good practice to include Near UV in the configuration name, for
example, 70-70 Near UV. This is especially helpful in a four-laser system.
3 Ensure that the appropriate optical filters for Near UV operation are
installed into the far-left trigon. See Figure B-3 on page 274.
4 Make sure the cytometer has a valid performance check or perform QC.
You are now ready to set up and perform your experiment using the Near UV
laser.
Verify that the custom configuration contains the correct parameters for use
with the Near UV laser. The system will not perform correctly if this is not
done.
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