Answer / carl_ellis

The DP pressure/flow transmitter is mounted above the pipe
for gas applications (empty impulse tubing).

The DP pressure/flow transmitter is mounted below the pipe
for liquid applications (liquid filled impulse tubing)

Steam flow applications using DP pressure transmitters were
historically mounted below-the-pipe (water filled impulse
tubing, frequently with condensate/seal pots), until
Emerson/Rosemount recently discovered that within certain
temperature limits, a DP transmitter close coupled on a
coplanar manifold to an Annubar averaging pitot tube can
survive steam temperatures mounted above-the-pipe.

See this link for Emerson's white paper on steam service
installation recommendations:
http://www2.emersonprocess.com/siteadmincenter/PM%
20Rosemount%20Documents/00870-0200-4809.pdf

Carl Ellis
Measure First

How does milli volt is created in themocouple?

2 Answers   Jaypee,

---

Difference between ultrasonic flow meter and radar type flow meter

2 Answers   Dodsal, Qatar Petroleums,

---

䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ

0 Answers  

---

What is require for PLC Programming?

6 Answers  

---

How to Calibrate Coriolis Flow transmitter in field

0 Answers  

---

Explain why plc require in analog input 4-20amp & 0-10 volt?

0 Answers  

---

What is Difference between PLC and CNC ?

2 Answers  

---

what is modbus,profibus,fieldbus

2 Answers  

---

Capacitance, resistance ( colour coding ), parallel & series circuits.

0 Answers   CCIE,

---

how the transmitter send MA?

1 Answers  

---

Flame scanner

1 Answers  

---

what is the differnce betweeen hart and smart tx

3 Answers  

---