| 摘要 |
<p>The meter pipe size is large, and the calibration vehicle has a large, horizontal volume measuring vessel with slanting bottom, mounted on the vehicle, into which the liquid flowing out from the meter is poured, until the specified volume is filled. The above volume measuring vessel (2) has partitions (3-5) dividing it into an inlet chamber (6), a measurement chamber (7) and an outlet chamber (8), connected stepwise with each other. An overflow channel (9, 11) connects the the inlet chamber (6) with the measurement chamber (7), and the latter with the outlet chamber (8). Each channel has a switch (10, 12) connecting or disconnecting a pulse counter (20) to the counting pulse line.</p> |
