Wht should be the ratio of natural frequency (Fn) to wake frequency (Fw) and wht if goes above the rato limit?

2 Answers  

---

what is difference between two wire &three wire pt 100 ?

3 Answers   Jindal,

---

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

0 Answers  

---

how to calibrate transmitter online (in running plant)please explain correct procedure

4 Answers   Sabic,

---

How do you identify an orifice in the pipeline?

0 Answers  

---

what is meant by calibration

3 Answers  

---

what is the primary sensing element in flow or pressureand level transmitter?

5 Answers   Power Grid,

---

why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?

0 Answers   Visa Steel,

---

what is the difference between dcs & plc

2 Answers  

---

HOW TO CALIBRATE A DRUM LEVEL TRANSMITTER

2 Answers  

---

How does a redundant controller comes in line when the main controller fails??

3 Answers   Yokogawa,

---

how does we do bench calibration of a differential transmitter.

1 Answers  

---