Answer Posted / jaffer

differential pressure transmitters:

1.both side applied a pneumatic pressure in the h.p&l.p side
check the response on the dp cell.
2.equal pressure on the both side and then transmitters shown
a zero value.
3.upper range value(URL)on the h.p side 10,000mmwc or 1kg/cm2. this value depend on process reqirement.
4.lower range value(LRL)on the l.p side 0 mmwc or 0 kg/cm2.
5.And then change value&change the tag no.
6.check the states of the transmitter. by the help of field calibration devices.

pressure transmitters:
1.the pressure transmitter is only one physical quantity sensing input&applied a input and then same 2,3,4,5,6steps.

what is the reset offset and control system in instrumentation

3556

---

Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com

2209

---

what is actual drum level and compensated drum level?

2178

---

Why is the orifice tab provided?

1145

---

how to measure oxygen which methods are using?

1926

---

Why trim span ? How?

1504

---

What is megering????

15337

---

What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?

3877

---

What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?

1980

---

please send data bank of quetions answers on analytical instrumentation.

1816

---

which processor is used in dcs.

2204

---

What is 3 selection available when configure the burnout protection for controller

2642

---

What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

2060

---

What is the difference between modbus,fieldbus & profibus

2361

---

Using your own examples solve a problem involving normal table. (experimental method and analysis)

1100

---