Hematology Analyzer Instrument is a medical test instrument used for measuring the red blood cell( RBC ), white blood cell( WBC ), blood platelet ( PLT ), mean corpuscular volume (MCV),hemoglobin concentration( HGB ) and so on in blood. Rheostatic impulsive method is adopted for measuring the hemoglobin. It is mainly applied to clinical and laboratory test of blood in hospital and also applied to the blood test and particulate accounting in the medical, chemical industry and scientific research department.