RT-7200 Auto Hematology Analyzer User’s Manual
Press “Print” button to print out one current group of QC data.
4.3 X-R QC
X-R QC, or mean - range QC, is common quality control method in industry, an efficient way
to determine and forecast abnormal fluctuation of quality, it complements with L-J QC each
other. X-R use QC sample for QC analysis.
X-R QC primarily use control chart to reflect QC data stability, its QC chart is a combined
chart.
4.3.1 X-R QC setting
Before running X-R QC, necessary QC parameter setting shall be done, setting screen is as
follows:
Fig.4-10 X-R QC setting
z Lot No.: lot number of QC object.
z Expiry: validity period of QC object
z Group No.: 2-60, default is 20.
z Number of samples in each group: 2-10, default is 5.
z Save: select QC file, input lot No., validity period, and parameter target value and limits,
click “Save” button to save QC data of current QC file, if this QC file has data, then
update.
z Delete: delete QC data of currently selected QC file.
z Send: use instrument RS-232 serial port to transfer QC data of currently selected QC
file to designated receiver. Before sending, please connect RT-7200 to equipment to
receive data with RS-232 serial port cable, start up and set up receiver software
parameters. For instrument transfer terminal parameter setting, please refer to Chapter
7 “System Setting”.
z Help: to display system help.
z Exit: return to main screen.
4.3.2 X-R QC run
After QC parameter setting of selected QC file, QC analysis of this QC file can begin. In
main screen, select QC file, go to QC run screen, as shown below:
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