| 摘要 |
A precision dispenser for liquids consisting of: a first pump (2) fed by a flask (1) containing liquid, connected thereto via an attachment (13) provided with a suction tube (16); an intermediate reservoir (3) fed by the first pump (2) and provided with one or more level probes (31-33); a second, high-precision, pump (4) downstream of said reservoir (3); a three-way solenoid valve (5) set downstream of the pump (4), from which it receives the liquid at input, and having two output ways, one output leading to the reservoir (3) and the other leading to a final receptacle (6) for collecting the liquid delivered; and a microprocessor unit for control and management of the pumps (2, 4), probes (31-33) and maintenance functions.
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