| 摘要 |
<p>The weight of a container, before and whilst it is being loaded, is monitored by an electrical weighing cell. A preselector unit stores the weight of substance required to be loaded, and a computing device is arranged to store the weight of the container, initiate loading of the substance into the container and determine the instantaneous weight of substance in the container and stop the loading when it determines that substantially the preset weight has been loaded. Other embodiments relate to separately controlling loading operations of a plurality of containers, and also to control a high- flow rate and a low-flow rate valve for each container to increase the accuracy without limiting the speed of loading. The invention is particularly useful for loading expensive perfumes, and other such substances.</p> |
