Explain, and give a real-world example of MODULATING control

1 Answers  

---

what is ment by PID controllers? explain with example?

2 Answers  

---

Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

0 Answers   Essar, Sail,

---

How can we loop powered for a transmitter.How we can do wiring

1 Answers  

---

What is safety barrier and how it is work

2 Answers   IOCL,

---

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,

---

how the flow rate is measured from a pipe with the help of pressure?

1 Answers  

---

i have 80cm water tank.how can i use DPT as level mesurment.pls give specs for that..? We have air comp.from that moisture comeout to one tank.i want to mesure level of water in that tank and then after operat one sov to dicharge water after high level.

1 Answers  

---

what is stability

2 Answers   IOCL,

---

What is Process portal A(PPA)?

1 Answers   ABB,

---

FOR CO/CO2/O2/NOX applications which of the following manufature is best? and what is the basic principle of gas analysers? ABB/YOKOGAWA/EMERSON/SIEMENS/TELEDYNE/THERMOFISHER

4 Answers  

---

how to calibrate differential pressure switch

2 Answers  

---