| 摘要 |
<p>An apparatus and method for dispensing a predetermined amount of fluid, such as an enzyme solution, is disclosed. A supply line (26) and discharge line (38) are operatively connected to the lower discharge end of a fluid injection tube (20). An intake sensor (74) and discharge sensor (76) positioned below the intake sensor determine when fluid has reached a desired level within the injection tube (20). The fluid is supplied from a fluid supply line connected to a container of fluid (14). The discharge sensor (76) determines when a predetermined amount of fluid has been discharged from the fluid injection tube (20) into a discharge line operatively connected to the lower discharge end of the injection tube (20). A programmable logic controller (70) controls intake (32), discharge (36) and air valves (44) for controlling the filling and discharging of fluid to and from the fluid injection tube (20).</p> |
