how can we measure the level measurement with the help of
pressure gauge?
Answer Posted / senthil r.m
Height(level)=Pressure / sp.gravity.
So,if u fix the pressure gauge at the bottom tapping of the tank.the pressure reading is divided with the sp.gravity of the liquid in the tank.
you can cross check by measuring the level and multiplying it with sp.gravity
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
Can combine control system for Emergency control system (ESD)and Fire & Gas System ( F & G) is possble to built and offer to client? Can such system is as per Norms in India?
our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS
how the arrangement of equipments done in control room
Speedtronic system .
how to convert cubic metre per hour to newton cubic metre per hour
how to tune siemens sipart electro pneumatic positioner..plz tel me..
we are using centum vp as monitoring with Dell precision work station T3600 but some times PC(s) are restarted automatically . how we can solve this problem? thanks
what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...
How hart protocol can be connected with control valves?
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.
why we use the ac supply load cell>?can we use the dc supply load cell?advantages and disadvantage of the ac supply load cell?
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =
what is the calibration procedure for magnetic flow meter @ onsite