Answer / binu

If bubbles are there then the flow meter will show erratic
reading. Best way to get an errorless reading is to have a
air release valve in the upstream side of the flow meter so
that these bubbles can be removed from the line before
entering into FM.

Answer / rathina

Ther will be Fluctuation in the reading. avoid this
condition bring down the Transmitter below Datum line or
Process connection(impulse line)

If any control valve create hunting problem, what is the possible reason and solution?

6 Answers  

---

How does your previous experience relate to the job you are applying for ?

0 Answers  

---

Why we use the double acting control valve in flow line?

3 Answers  

---

what are the different types of communication cables used in automation and what are the difference in the cables

1 Answers   KN,

---

what is the reset offset and control system in instrumentation

0 Answers   ABB,

---

plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

0 Answers   MahaGenco,

---

In apron feeder how TPH is calculated?

0 Answers   Lafarge,

---

why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.

0 Answers   ONGC,

---

T.x range -0.1 to 0.2 milibar,so how much mili ampear at 0.1 milibar?

7 Answers   Sugar Factory,

---

what is the meaning of HART ?

2 Answers  

---

what is the difference about HART, and 4-20mA signal?

8 Answers  

---

What is rated capacity in Control valve

3 Answers  

---