Hi everybody !

I am looking for a digital liquid flow meter for my HPLC-system. It is intended for use during qualification and other checking of the pump flow.
Can anybody recomend me one ? And can you tell me what it costs ?

Now all you people probably say: "Why not using the old method with stopwatch and balance ?" But now we have a lot of HPLC systems and it is a little time consuming. Together with this I see Agilent people do the enhanced OQ/PV and this looks to me as a better and more accurate way to measure flowspeed on both channels (We use Agilent 1100 binary pumps)

I would appriciate all the help I can get !

Kind regards,
Holger Dijkstra

I use the Humonics digital liquid flowmeter and have had no problems for 3+ years. The link below will take you to a page listing many flow meter manufacturers. Make sure the spec on the flow meter you purchase make sense in relationship to your spec on flow accuracy (four times better is a good rule of thumb). Good luck.

http://www.biobank.co.kr/item/ff/flow-liquid.shtml