Answer Posted / s vedpathak

Control valve is used in close loop control system.If it is
hunting , then to troublshoot first put loop for few sec in
manual mode, still if v/v is hunting then it is field
problem i.e v/v or I/P converter problem.

If it is not hunting in manual mode, then the problem can
be either the loop process variable(PV) is hunting or if PV
is ok, either the load/process is varied or loop needs
tuning.

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

1974

---

how u calibrate pneumatic n motorized c/v?

1974

---

PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS

3900

---

Explain the difference between plc and cnc?

1077

---

What is instrumentation technologists and mechanics?

980

---

a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

2283

---

can anyone tel the syllabus or previous year question paper for BHAVINI(EIE)2014.

2449

---

What are different types of orifice plates? State their uses.

1154

---

A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe

2255

---

Explain the use of hair spring in the pressure gauge.

1094

---

Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?

1797

---

how can use ram

2062

---

what is the difference between magnetic flow meter and mass flowmeter

1532

---

sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com

2329

---

what is diffrance between FF & SMART, explain with difination

3221

---