how we use the positioner feed back in split range control valves?

1 Answers   Tata Power,

---

I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?

0 Answers  

---

there are two candidates p and q in an election.During the campaign,40% of the voters promised to vote for P ,and rest for Q.however, on the day of election 15% of the voter went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P.suppose,P lost by two votes,then what was the total no. of voters.

1 Answers   GATE,

---

calculate the rane of level use of this values, h=3 meter density=0.9 , whats the rang?

2 Answers  

---

I have 0.75mm sq multicore cable (IS type) , can use instead of same type but 1.5 sq mm cable ? Note : The distance is around about 150 meter.

0 Answers  

---

How to Calibrate Ultrasonic flow Transmitter in Field

0 Answers  

---

How we will check whether the proximity, which we have is either NPN or PNP, if no data sheet or manual or any details is available to us ???

1 Answers  

---

flow transmitter range is 0 -500 mmwcc but the transmitter shows 12 ma for o mmwc instead of 4 ma ...how to solve this problem when we apply 375 mmwc it shows 16 ma

3 Answers  

---

on which principle control valve works?

3 Answers   Lupin, Reliance,

---

how can be connected thermocouple in series?what is the need?

2 Answers   Hindalco,

---

god evening sir i am studying m.sc(tech)electronics &instrumention.am i elegible to all industies

0 Answers  

---

What is the reason PT speed not incresed in gas turbine?

0 Answers   ROC,

---