Deltabar S PROFIBUS PA Installation
Endress+Hauser 5
•The on-site display can be rotated in 90° stages.
•Endress+Hauser offers a mounting bracket for installing on pipes or walls.
2.2 Measuring arrangement
2.2.1 Pressure measurement
•The PMD70, PMD75 and FMD78 are best suited for differential pressure measurement.
•Measuring arrangement for gases: Mount device above the measuring point.
•Measuring arrangement for liquids and steams: Mount device below tapping point.
•For differential pressure measurement in vapour, mount the condensate traps at the same level
as the same the tapping point and at the same distance from Deltabar S.
2.2.2 Level measurement
•All Deltabar S devices are best suited for level measurement in closed tanks.
•PMD70, PMD75, FMD76 and FMD77 are suitable to level measurement in open tanks.
Measuring arrangement level measurement in closed tanks and closed tanks with
superimposed vapour
•PMD70, PMD75: Mount device below the lower measuring connection. Always connect the
negative side above the maximum level via an impulse piping.
•FMD76, FMD77: Mount device direct on the tank. Always connect the negative side above
the maximum level via an impulse piping.
•FMD78 → ä 6, Chap. 2.3 and Chap. 2.4.
•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.
•FMD76, FMD77: Mount device direct on the tank. The negative side is open to atmosphere
pressure.
2.2.3 Flow measurement
•The PMD70 and 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.
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