What is the role of Integral in pid control?

6 Answers  

---

If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

---

which processor is used in dcs.

0 Answers   ABB, Wave Distillery,

---

how can you set a zero and span of transmitter?

1 Answers   Rockwell,

---

Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

0 Answers   Chagalesh Consulting Engineers,

---

What is the start up procedure of desalter

0 Answers   Reliance,

---

What is a flow meter?

2 Answers  

---

please send me the inteview questions in IOCL

0 Answers   IOCL,

---

whether radar level transmitter is applicable for the open tank

1 Answers   TCL,

---

A flange is used for instrument connection for a system with a design temperature of 316C (600F) and a design pressure of 1000 kPa (145 psi). What is the class rating of the flange to be used for this application? Explain your answer

0 Answers  

---

control modes

1 Answers   Vedanta,

---

what are the selections available in configuring a burnout protection of a controller? thanks

0 Answers   NPC Alliance Corporation,

---