Answer / yomama

Your question suggest you are using a "Differential Pressure
Transmitter" in which case since the -10 Bar vacuum is
applied to both the Hi and Low legs the -10 Bar vacuum is
neutral the Transmitter

In that case we merely multiply the distance (850 mm) x (.73
SG) = 620.5

Answer / aftab ahmed mazari

If you installed the remote seal transmitter at flanges,
then in case empty tank /vessel, the transmitter will
showing -mA. so do the followings:
1. Make transmitter 4 mA in this case(without any pressure,
only lower low leg remote seal pressure acting)
2. Apply 850 x 0.73 =620.5 mm of water to high side of
transmitter flange and set transmitter out put 20 mA.
aftabmazari@yahoo.com

Answer / yomama

Your question suggest you are using a "Differential Pressure
Transmitter" in which case since the -10 Bar vacuum is
applied to both the Hi and Low legs the -10 Bar vacuum is
neutral the Transmitter

In that case we merely multiply the distance (850 mm) x (.73
SG) = 620.5

Answer / ys

close the both hp and lp iso valve(so that any pressure
should not act on tx diaphragm). now measure the input
pressure in mm by connecting hand communicator to tx.. this
is the LRV.now measure span(ie here it is 850mm).multiply
span with liquid density(ie 850*0.73).we will get 620.5.
this is your URV

what is dead weight tester and where it is used?.

11 Answers   DuPont, Jain steels,

---

please can anyone tell me in detail, what's mean by open loop and close loop?

6 Answers  

---

what is use single seated and double seated valve?

2 Answers   Doha Petroleum Construction DOPET,

---

What is cable size for intrenal wiring in DCS or PLC ,from any card to Terminal amd Why

2 Answers  

---

What is the use of each wire in three wire RTD

0 Answers   GSPC,

---

---

different between calibration range and instrument range ?

2 Answers  

---

What are the questions asked in fresher instrumentation candidates

0 Answers   Polmon,

---

What is zone,loop/fire alarm system?

0 Answers   Emco,

---

i am working in the automation company...i want to just know how actully pid control valves are tune????...

1 Answers  

---

In a class of 150 students, 40 passed in Social Studies, 90 passed in Science and 30 failed in both the subjects. vi)How many students passed in at most one subject among Science and Social Science?

7 Answers   CAT, CGI, Cipla, KHK, Visa,

---

What are the advantages and benefits of using PLCs to automate a section of a plant?

2 Answers  

---

if found error in magnetic flow meter?how can we adjust?

2 Answers   ANI Instruments, Techint,

---