Answer / jigaranadkat

0 % = (-45) PSI = 4 mA
25%= (-22.5) PSI= 8 mA
50%= 0 PSI = 12 mA
75%=22.5 PSI = 16 mA
100% 45 PSI = 20 mA

Calculation :
LRV = (-45) PSI
URV = 45 PSI
SPAN = URV - LRV = 45-(-45) = 90
Calculate % of SPAN for e.g. 0 PSI is {(0-(-45))/SPAN}*100 = (45/90)*100 = 50% of SPAN
mA= [{(% of SPAN)/100}*16]+4 or in other terms ...
1% of SPAN = 4+0.16 = 4.16 mA
2% of SPAN = 4+0.32 = 4.32 mA
3% of SPAN = 4+0.48 = 4.48 mA
.
.
.
.
50% of SPAN = 4 + 8 = 12 mA
.
.
.
100% of SPAN = 4 + 16 = 20 mA


Hope this will be helpful to you.

Best Regards,
Jigar Anadkat
anadkat.jigar@gmail.com

The process variables that need to monitored and controlled are ________, ________, _________ and

1 Answers  

---

What is PDS and PDMS ?

1 Answers  

---

why any measurement made interms of pressure is more accurate ? to be more precise most of the flow velocity is made interms of pressure and it is accurate. what is the reason behind pressure measurement being accurate ?

1 Answers   NATPET,

---

A differential transmitter is calibrated to measure the flow of lquied, explain what wil happen if the fluid is not pure but contains some bubble?

2 Answers  

---

why we are using analytical instrument in plant ?

1 Answers  

---

how many types of sensor in instrumentation

3 Answers   SRACO,

---

How to calculate P,I&D value in PID controller ?

1 Answers   Jindal Steel and Power, SAL Steel Power,

---

what's the reson that,Load is not same on VFD I/P and O/P Side.whenever DOL condition load is same I/P and O/P side.

2 Answers  

---

How it the difference between force balance system and dispalacement balance system?

1 Answers  

---

why the discharge pressure of ID fan showing negative at fan running condition.(boiler operating condition.)

5 Answers  

---

we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.

1 Answers  

---

What is seismic transducer?Where it is used?

1 Answers  

---