Answer / mnb

For open tank you just connect HP side to the bottom of the tank and vent LP side to the atmosphere.
Head pressure becomes liquid level .URV=Height*specific gravity (H*SG) and LRV =0.
For closed tank, use dry leg for non condensate liquids and use wet leg for condensate liquids.
Dry leg-connect HP side to bottom and LP side to top of the tank. LRV =0, URV= H*SG.
No need to bother about pressure inside the tank because it acts upon both sides equally.
Wet leg- connect Hp side to lower tapping and LP side to upper tapping and fill the Lp side with process liquid.
LRV=h2*sg
URV= h1*sg-h2*sg.
h1= level of liquid at HP side
h2= level of liquid at LP side.

what is zero and span ?

0 Answers  

---

what is Instrument Schedule, and what it is mainly used for?

0 Answers  

---

Definition of level

3 Answers  

---

What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch

0 Answers  

---

What is the difference between relative vibration

4 Answers   Desein,

---

Describe a time when you anticipated potential problems and developed preventive measures.

0 Answers   Hotel Management,

---

what do you mean by smart instruments?explain with example

4 Answers  

---

I have transmitter of range -20 to -5 kpa.if it is possible to zero trim with atmospheric pressure,means HP and lp having no pressure...what will get after zero trim and it is the right way.....plz give me reply ....

3 Answers   KOC,

---

what is scale factor of proximitor & unit of the vibration.

0 Answers   ADMA OPCO,

---

how bolometer is used in temperature measurement ??

1 Answers  

---

A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe

0 Answers  

---

What is rtd output signal

4 Answers   Nestle,

---