| 摘要 |
PURPOSE:To supply measuring water to a detector exactly by the amount of sampling for detection eliminating clogging of a passage with foreign matters, by providing an opening in an external container into which the measuring water is introduced to allow the measuring water to flow out thereinto naturally. CONSTITUTION:An external container 1 is evacuated with a suction pump 3 to suck measuring water 6 in a detection reservoir 8 into a container 1 through a strainer 9 and a first drain tube 7. The measuring water is introduced into a weighing cup 10 from an opening 10a by a natural down flow and the pump 3 is stopped as a sensor 5 detects that the measuring water level reaches a specified value and a valve 4 is opened. The measuring water more than filling the weighing cup 10 is drained and when a pinch valve 13 is opened, the measuring water is introduced to an analyzer 12 by a natural down flow to perform a water quality analysis. This minimizes the clogging of the passage with foreign matters in the sample water thereby assuring an exact amount of sampling for detection. |
