Siemens ADVIA 2120 Operator's Manual page 284

Noise
The number of events in the Noise area (1) of the BASO cytogram.
BASO Suspect
The number of events in the Baso Suspect area (1) of the BASO cytogram.
RawWBC
÷
BASO Valid Cells x (BASO PHA Cells BASO PHA Total)
BasoCalFactor
The sampler-specific calibration factor:
BasoCalFactor = BASO WBC (AS) x 0.0012475
BasoCalFactor = BASO WBC (MCTS) x 0.0012475
BasoCalFactor = BASO WBC (OTS) x 0.0012475
To view the BASO WBC calibration factors, click on the System
Cal/Gain Logs
Logs menu.
FracDT
The fraction of time that the channel is busy processing flowcell events. While
the baso channel is busy identifying a particular flowcell event, it is unable to
process any additional events that might occur. By measuring this "dead time",
the analyzer can compensate for these events.
Methods 8-15