Answer Posted / ashish namdev, bina refinery [

3 & 4 wire rtd use for temp. compensation from sensor to Tx.
3 wire is good & mostly use.
4 wire is best because in 4 wire, both wire(+ & -) have
compensating cable. then reduce unwanted temp. approximate
negligible. then get correct output.
2 wire have more temp. interference error.

what is the imbustion control loop

1835

---

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.

2684

---

Conversions

2091

---

1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.

2771

---

how to calculate signal cable sizing? and multipair cable sizing??explain in brief?

2308

---

can any send me a forbes marshall dtron 316 manual

1901

---

what are procedure of sox-nox calibration

2879

---

What is the use of single seated valve?

1006

---

how do calibrate the valves.. with clear manual

2031

---

WHAT ARE THE INSTRUMENTAL DIAGRAMSOF VALVES?

2084

---

hi my name is rakesh patel i just complited my be in instrumentation & control now i am going to working as a validation engineer in a poject department so what is a scope in a future as a validation engginer ? what line is good for me can any bady give me complete solution please? your regard rakesh patel

1923

---

detail of mass flow meter pricipal

2268

---

Operational amplifiers

1908

---

Which type of diagphram use in costic line,DM water line,natural gas line,oil line?

3868

---

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

2211

---