Answer Posted / venbha123

If the LP leg of the transmitter is kept dry, steam may get condensed in the LP leg because of which the level indication may be wrong. Hence We are using wet leg for LP side of the transmitter, which is initially filled with pure water. When the drum is at zero level, the pressure difference is only the head pressure acting on the LP side - that is 100% level head at LP side. Normally in DP transmitter the HP side pressure will be more than the LP side. In this case since the pressure in the LP side is more than the pressure in HP side the range is mentioned as negative. At 100% level both the head pressures at HP & LP are the same, the DP becomes zero. Therefore the range is mentioned as: from negative value to zero.

in differential pressure transmitter,min&max pressure range for hp&lp

1973

---

what is isloted barrier how it works and what are the main purpose.how it make safe area.

2104

---

hi! i want to know about mpse exam.

2267

---

Please tell me details about Sox,Nox,SWAS analyser????

3709

---

send me HPCL paper

10191

---

How to find out the current of two motors having same power consumption but different RPM?

1988

---

Explain about the leakage class of the control valves

1980

---

How to Calibrate Radar Level Transmitter in Field

1224

---

What are different types of valves?

1295

---

How hart protocol can be connected with control valves?

1023

---

What is the difference between PLC and DDC?

2160

---

WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

2510

---

on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon

2130

---

my data card only does run in my mobile so how can change it that it run other mobile & computer and i can stor data in my data card

2239

---

Which products are available in the Mass Systemswitch and System Manager AC range?

1863

---