RT-7200 Auto Hematology Analyzer User’s Manual
5 Calibration
Before delivery, all instruments have been subjected to strict test and calibration. But during
transportation and using, test result may drift due to different reasons; instrument calibration
purpose is to ensure test result accuracy.
In order to guarantee instrument test accuracy and get stable and reliable test result,
instrument must be calibrated in following cases.
1. First installation for use and reinstallation at other place.
2. Instrument has been repaired.
3. Deviations in QC results.
Note: Calibration sample shall adopt Rayto designated commercial
calibration sample, stores and uses as required. Before making
sure that all calibrations have been done correctly, do not use test
results for medical and clinical diagnosis.
5.1 Preparation before calibration
Commercial calibration sample can be used to calibrate this instrument. All mathematic
calculations related with calibration can be done by instrument automatically, calibration
coefficient is automatically saved. RT-7200 has three sets of calibration coefficients,
anti-coagulating whole blood, anti-coagulating peripheral blood and pre-diluted peripheral
blood; anti-coagulating whole blood, anti-coagulating peripheral blood and pre-diluted
peripheral blood are calibrated separately.
Before instrument calibration, you shall check in following steps, make sure machine works
in normal status, if any problem is found, stop calibration.
1) Check instrument and reagent, make sure that instrument is in normal status, reagent is
sufficient, material needed is complete.
2) Make blank test, make sure that blank test value meets requirement.
3) In counting screen, use median blood sample to repeat test, make sure that instrument
works within precision range.
5.2 Manual calibration
In main screen, select manual calibration, the system goes to manual calibration screen as
shown below:
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