Installation
Deltabar S FMD77, FMD78, PMD75 with FOUNDATION Fieldbus
20
Hauser
Differential pressure measurement in liquids with PMD75
P01-PMD75xxx-11-xx-xx-xx-007
Fig. 17:
Measuring arrangement for differential pressure measurement in liquids with PMD75
1
e.g. filter
2
Shutoff valves
3
Deltabar S, here PMD75
4
Separator
5
Drain valves
6
Three-way valve manifold
• Mount the Deltabar S below the measuring point so that the pressure 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.
Differential pressure measurement in gases, steam and liquids with FMD78
P01-FMD78xxx-11-xx-xx-xx-000
Fig. 18:
Measuring arrangement for differential pressure measurement in gases, steam and liquids with FMD78
1
Diaphragm seal
2
Capillary
3
e.g. filter
4
Deltabar S, here FMD78
• Mount the diaphragm seal with capillaries at the top or on the side on the piping.
• For vacuum applications: mount the Deltabar S below the measuring point.
Section 4.3.4, "Vacuum application (FMD78)".
• The ambient temperature should be the same for both capillaries.
+
–
➂
➅
➁
➁
➄
➃
➄
➃
➀
+
–
➂
➁
➃
➀
➁
Содержание Deltabar S FMD77
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