Answer / mobin ahmed sabayek

for flow measurment first need creat difrential pressur by
using of orific plat in flow path dp tranmitter have low
and high side cannect high pressure and cannect low side of
low presure of tapping and transmitter will convert
diffrential pressure in to 4 -20 ma

Answer / ashish namdev, bina refinery [

A DP type transmitter senses DP pressure from LP & HP tapping.
after sensing DP we will have to change some settings in the
transmitter, the settings are as follows -
1. set the range in output block.
2. change display parameter from linear to square root.
3. change display unit as per your requirement.

Answer / george mathews

When we are going to measure the flow using a DP
Transmitter there must b a Flow Instrument placed there. So
if we see the basic structure of a flow instrument we can
clearly see that one side the orifice is normal and it goes
on shrinking toards the other end like a conical shape.
so we connect the higher end of the dp to the normal
orifice and the lower side to the other end of the flow
instrument. and when there is a flow there ll alwyas a
difference in the pressure as soon the water/ oil / gas
enter the flow instrument the normal end is at high
pressure but the exit end is at lower pressure due to d
manufacture of the instrument. And we can get out
measurment .

what is difference between OP AMP and differential amplifier?

5 Answers   TCS,

---

We have yokogawa cs3000 one fcs and 4 his. After download to his, showing successfully at es, but not transferred to his.

1 Answers   Shyam Steel,

---

What are SMART insuments?

5 Answers  

---

what does 5/2 solinoid valve means?

5 Answers   UltraTech,

---

I need the intools training institute address in india. Intools subject oriented local authors books.Refer me plz

3 Answers  

---

why we use double acting valve and where?

1 Answers   Aker Solutions,

---

how eddy current loss in probe and induced gap voltage accros probe trip and shaft

1 Answers   Reliance,

---

On liquid service if PT Head is 18 meters. How much pressure will be exerted on it. If Transmitter is not in service?

1 Answers  

---

What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

0 Answers   KNPC,

---

what is shutoff dp? why is it important for selection of a control valve?

1 Answers  

---

What is surge in compressors? How to detect and control it?

3 Answers   Kharafi National,

---

if a dp transmitter has range 100 in H2O and flow is 20mmcf and if the flow is changed to 25 mmcf then what is the formula to determine new range of transmitter

1 Answers   TATA,

---