| 摘要 |
Arrangement for measurement of flow volume and/or flow rate of a medium which is pumped by means of a pumping assembly. The arrangement comprises a drive motor for producing the work cycles of the pumping assembly and a pickup for detection of said work cycles and sending of a signal as a function of said work cycles. Furthermore, there is an electronic unit 10 for registering, via said pickup signal, a value proportional to the number of work cycles. From this value, the flow volume and/or flow rate can be established by means of a nominal calibration factor KN determined for the pumping assembly. The electronic unit 10 includes a calibration unit 11, which can be adjusted to convert said pickup signal into at least one output signal representing a certain actual calibration factor KV, calculated with the help of a particular correction factor KK for correction of the nominal calibration factor KN. Furthermore, there are arrangements 12-15 for registering the volume and/or the flow rate of the flowing medium, designed to be controlled by the output signal from the calibration unit. <IMAGE> |
