Answer / vibhash kumar(voith)

Because our maximum electronic components working in the range of 1 to 5 VDC.250 omhs is suitable for the both 1 to 5 V and 4 to 20 MA.through the omhs law.if we will take 4mA it will for 1vdc and 20 mA for 5 vdc( V= IR).we are not using in field because AI 250 mA already contains.so we have no need in field.

What is the formula to convert mv to temperature in k type thermocouple?pls simply elaborate? I got one ans.it is Temp=mv×25°+atmospheric temp,but here what is 25°,i confusef ,so pls????

2 Answers   HPCL,

---

what is relation between electronics&instrumentation

4 Answers   Hindustan Zinc,

---

how commission a transmitter evev plant is already running

2 Answers  

---

why we use 24v dc in instrument rahter than 230vac????

4 Answers  

---

How to get Cv of control valve having following parameter ,i.e inlet pressure 4.5kg/cm2 outlet pressure 1 kg/cm2 specific gravity 0.808

3 Answers  

---

what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

---

whey we conect ammeter in series and voltmeter in parallel in circuit

1 Answers  

---

in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

0 Answers  

---

Explain Split Range Control In Control Valve Briefly.

5 Answers  

---

HI FRIENDS IHAVE QUESTION 1.WHAT IS PARTIALSTROKE TEST?WHY IT IS USED ON ESD ON OFF VALVES?

3 Answers   KNPC,

---

please send me gail format if u have... please help me if u can...

1 Answers  

---

Programmable Logic control.

0 Answers   CCIE, NCVT,

---