| 摘要 |
PURPOSE:To perform automatic sampling by connecting a suction pump, the 1st three-way valve, constant-flow-rate pump, the 2nd and the 3rd three-way valves, and plural enclosed sample containers to a sampling probe provided to liquid supply piping. CONSTITUTION:The sampling probe 2 is fitted to the liquid supply piping 1 and the suction pump 4, the 1st three-way valve 6, constant-flow-rate pump 7, the 2nd and the 3rd three-way valves 8 and 11, and the 1st and the 2nd enclosed sample containers 14 and 17 are connected thereto. The 1st valve 6 is connected to the branch point 22 of the piping which connects the 2nd and the 3rd valves 8 and 11, and the 2nd valve 8 is connected to the liquid supply piping 1. A controller 32 controls valves 2', 5, and 9 and valves 6, 8, and 11 to flush a sampling line and the sample containers and perform the sampling automatically. Then, the operation time of the 3rd valve 11 is controlled to perform the sampling according to the capacities of the sample containers. |
