Sysmex Xn 550 User Manual -

The XN-550 is part of the XN-L series and is unique for offering a analysis in a compact footprint. It employs three primary technologies to ensure precision:

Primarily used for white blood cell (WBC) differential counting, as well as optional reticulocyte and body fluid analysis, ensuring clear separation of cell populations. Hydrodynamic Focusing and DC Impedance: sysmex xn 550 user manual

The manual specifies "Start Up" and "Shut Down" procedures that often include an automatic probe wash or background check. Skipping these steps, as warned in the manual, can lead to carryover or protein buildup in the sample needle. The XN-550 is part of the XN-L series