Answer Posted / ashish b. patel

when you are open the positioner there are two setting, zero & span. positioner to give 4 mA and set the Zero adjust and valve should be 0% open. after give 20 mA and set to span and valve should be 100% open. this to adjust are very important. after you can give again 4 mA- 0%, 8 mA- 25%, 12 mA- 50%, 16 mA- 75%, 20 mA-100%.

Explain pH, Conductivity.

2143

---

sir, give me placement papers and interview quistion of birla group company of copper.

2838

---

How to Calibrate Level Switch in field

1315

---

When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

1800

---

What is the use of single seated valve?

1039

---

what is RTV function in in process control?

3097

---

HI friends.I am Surya a BTech in Electronics and Instrumentation Engineering.I am going to appear Relince Industries Ltd all India writen test very soon. so plz help me by sendind the probable questions about my subject.My mail ID is surya.barik@gmail.com.

2247

---

What is the constant voltage unit?

1050

---

why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?

2203

---

NPN transistor, SCR, Zener diode, LED, Varactor diode, Vortex meter, RTD, Resistor, Crystal

2176

---

Can anybody tell me which type of question are asked in the interview for the FORMULATION(Pharma) as a instrumentation engineer, & question in building managment system.

2007

---

what is difference between fork type and capacitance type level switch. where it is using

2368

---

what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?

2094

---

Explain the difference between mmwc and mmwg?

5634

---

Explain the mechanism behind the turbine meter.

1096

---