FUNCTIONAL DESCRIPTION
9-10 Sysmex KX-21 Operator’s Manual -- Revised October 1998
5. BLOOD CELL DISCRIMINATION CIRCUIT
WBC, RBC, and PLT are discriminated and calculated by the following blood cell
discriminator.
5.1 WBC Discriminator
As to WBC LOWER discriminator, the optimum position in 30 - 60 fL is automatically
determined by the microcomputer. WBC is calculated from the particle counts more than this
LOWER discriminator.
5.2 RBC Discriminator
As to RBC LOWER discriminator and UPPER discriminator, the optimum position in 25 -
75 fL and 200 - 250 fL, respectively, are automatically determined by the microcomputer.
RBC is calculated from the particle counts between this LOWER discriminator and UPPER
discriminator.
5.3 PLT Discriminator
As to PLT LOWER discriminator and UPPER discriminator, the optimum position in 2 - 6
fL and 12 - 30 fL, respectively, are automatically determined by the microcomputer. PLT
count is calculated from the particle counts between this LOWER discriminator and UPPER
discriminator.
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