| 摘要 |
The invention relates to a method for metering liquids using a metering apparatus whereby a desired mass of the liquid is to be metered. In a first step S1, a liquid is metered into a container, the metering of the liquid being performed volumetrically. In S2 the mass of the added liquid is determined. After a preset waiting time, in step S3, the mass of the added liquid is re-determined in S4. Step S5 comprises obtaining the difference of the two masses and repeating S3 if the difference exceeds a preset value. If necessary, the steps S3 - S5 are repeated until the difference between the measured masses falls below a preset value. Step S6 comprises comparing the mass of metered in liquid with the desired mass of liquid, and if they are the same (or within a preset deviation) the process is terminated. Otherwise steps S1 - S6 are repeated. The invention furthermore relates to an apparatus for carrying out the method. |
