Answer / carl_ellis

formula to convert 4-20mA to 0-100%

(mA - 4.00)/16*100 = %

Carl Ellis
Measure First

Answer / mayur kakade

% of full scale X 0.16 + 4 = mA
Suppose 8 mA convert into %
Then, (8-4)/0.16 = 25%

Answer / sadman

(mA-4)/0.16=%
if i have to convert 12 Ma in percentage
(12-4)/0.16=
8/0.16=50%

Answer / sandeep

percentage=25/4*ma-25

when ma=4,percentage=0

when ma=20,percentage=100

hello.my friends.i am an electronics & instrumentation engineer.i want to know Q1.why lugs use in instrumentation cable termination? Q2.if limit switch not working what to do?

2 Answers  

---

How an rtd work, and what volts/current goes to a rtd to measure the resistance?

0 Answers  

---

Can i convert 230v ac to 24v dc by using a relay?Instead of Smps is it possible? What is relay logic in plc ?? How it works?

2 Answers   Infotech,

---

what is the procedure for auto tune in masoneialn 12300 series displacer type transmitter?

0 Answers  

---

Difference between dcs and plc including date processing and architecture.

0 Answers  

---

---

Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...

0 Answers   Adgas, GAIL, Oil India, ONGC,

---

i saw in my company drawing seat cable size as mensioned like this 12p*15 sqmm,12t*1.5sqmm, 9c*1.5sqmm. now what my que is what is mean by p , t , c.

3 Answers  

---

What is passive connection of instrument in different types of IO module?

2 Answers  

---

how u measure flow?orifice measurement?why all ft in square root?

1 Answers  

---

Why DP transmitters are subjected to high static pressure test of 100 bar. Though they will be used for very small pressure range

4 Answers   HPCL,

---

How can you differentiate Instrumentation to Electrical?

1 Answers  

---

Why we. Don't measure current in parallel? Why we measure current in series and why we measure voltage in parallel only?

2 Answers   Almeer Technical Services,

---