Deltabar PMD75B HART Installation
Endress+Hauser 19
• Mount the measuring device above the measuring point so that the condensate can flow
into the process piping
• The negative side is open to atmospheric pressure via the reference air filters screwed
into the LP side flange
5.2.4 Differential pressure measurement
Differential pressure measurement in gases and vapors
A0043423
1 Measuring device
2 Three-valve manifold
3 Shut-off valves
4 e.g. Filter
Mount the measuring device above the measuring point so that condensate can flow into
the process piping.
Differential pressure measurement in liquids
A0038220
1 e.g. Filter
2 Shut-off valves
3 Measuring device
4 Three-valve manifold
5 Drain valves
6 Separator
• Mount the measuring device below the measuring point so that the piping is always
filled with liquid and gas bubbles can run back into the process piping
• When measuring in media with solid parts, such as dirty liquids, installing separators
and drain valves is useful for capturing and removing sediment
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