Industry Online Support
Technical Forum
1/25/2012 10:47 AM | |
Posts: 14 Rating: (4) |
Hello hizdadd, Small remark: If you want to measure a pressure drop of a few hundred Pascal (let's say 200 Pa) with a sensor that ranges from 0 to 5 bar, ithas to be a pretty good sensor. 200Pa ----------------- x 100% = 0.04% accuracy 500000 Pa Altough you scaled the sensorfrom 4..5bar, the accuracy of the sensor still appliesfor the complete range. The accuracy of the sensor you mentioned is 0.25% (from the PDF you mentioned), wich translates in an accuracy of 1250Pa. Since you want to measure a drop of pressure, I don't think this is going to be a problem. If you want a very precise measurement of the absolutepressure, 1250Pa is the deviation you have to take into account. And I didn't even mention te accuracy of the analog input card used. Greetz! |
This contribution was helpful to1 thankful Users |
Follow us on