Sample analyzer

A sample analyzer comprising:

• a liquid containing part configured to contain a liquid;
• a liquid supplying part configured to supply the liquid to the liquid containing part;
• an aspiration tube configured to aspirate a sample or a reagent a movement mechanism configured to move the aspiration tube;
• a liquid surface sensor configured to detect contact of the aspiration tube with a liquid surface;
• and
• a controller configured to execute an aspiration tube adjustment operation, the aspiration tube adjustment operation comprising:
• supplying the liquid to the liquid containing part by the liquid supplying part;
• lowering the aspiration tube by the movement mechanism toward the liquid containing part set on the container setting part;
• and
• obtaining information regarding a position in a height direction of the aspiration tube at a time when the aspiration tube has come into contact with the liquid surface.

A sample analyzer which analyzes a measurement specimen prepared from a sample and a reagent, the sample analyzer comprising:

• an aspiration tube configured to aspirate the sample or the reagent;
• a movement mechanism configured to move the aspiration tube;
• and
• a controller configured to execute operations, the operations comprising:
• moving, upon receiving an input for executing an aspiration tube adjustment operation, the aspiration tube to an aspiration tube replacement position for replacing the aspiration tube;
• and
• controlling, after power of the sample analyzer has been turned off and the aspiration tube has been replaced, the movement mechanism so as to execute the aspiration tube adjustment operation when the power of the sample analyzer is turned on.