SYSMEX XE-5000, Инструкция по эксплуатации, Страница: 108 / 262

CHAPTER 7 Quality control
7-12 Sysmex XE-5000 Instructions for Use
Revised June 200
8
7.6 Troubleshooting
This section explains actions against errors which occur
during quality control analysis.
• If the message “CHECK CONTROL CHART” or
“REANALYZE CONTROL” appears, check the analysis data
on the LCD of the Main Unit. When “Cancel” is selected,
the data are not sent to the IPU and the QC sample can be
reanalyzed. When the “OK” button is selected, the data are
sent to the IPU. After this, review the rader chart and note
the parameters in which the error occurred. Check the
detailed data on the Levy-Jennings chart (Control Tab).
Control chart definition
In the XE-5000, the Levy-Jennings method is used as a basic
principle for reading the X/L-J control chart. If the latest control
data point is outside the control limits, the last 20 (including the
latest) data points are searched for a point that is outside the
same limit as the latest data point. If there are data beyond
limits, it is judged as an L-J control (or X control) error. If there
is no data outside the control limits, run the X/L-J control
again. If that result is within the control limits, there is no error.
Naturally, if the repeat control result is outside the same limit
as the previous result, the quality control is judged abnormal.
How abnormality is displayed
If the quality control is judged abnormal, the relevant
parameter name appears backlit.
Example displays: Abnormality judged
Example displays: No abnormality judged
Note:
The computing method to calculate control errors in
the X/L-J control charts is the same as in the X
M
(moving calculation) control chart.
Latest control data
20 or less
WBC
Latest control data
WBC
20 or less