Endress+Hauser Deltabar S FMD 77, Краткое руководство по эксплуатации

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Deltabar S PROFIBUS PA Installation
Hauser 11
• In the case of level measurement in closed tanks with superimposed vapour, a condensate trap
ensures pressure which remains constant on the minus side.
Measuring arrangement level measurement in open tanks
• PMD70, PMD75: Mount device below the lower measuring connection. The negative side is
open to atmosphere pressure.
• FMD77: Mount device direct on the tank. The negative side is open to atmosphere pressure.
4.3.3 Flow measurement
• The PMD75 are best suited for flow measurement.
• Measuring arrangement for gases: Mount device above the measuring point.
• Measuring arrangement for liquids and vapours: Mount device below tapping point.
• For flow measurement in vapours, mount the condensate traps at the same level as the same
the tapping point and at the same distance from Deltabar S.