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Abstract

An automatic analyzer including a water supply tank temporarily reserving liquid fed from automatic analyzer outside and consumed in each mechanism of the automatic analyzer, a supply flow passage connected to each mechanism of the automatic analyzer from the water supply tank, a water supply pump supplying the liquid within the water supply tank, and a circulation flow passage returning the liquid discharged from the water supply pump to the water supply tank, in which in the water supply tank, a flow within the water supply tank by the liquid from the circulation flow passage is formed, and a bottom surface of a rising slope is included, thus providing high reliability and suppressing generation frequency of dirt and bacteria generated on an inner surface of a water supply tank and reducing cleaning frequency of the water supply tank.

First Claim