Answer / rakesh kumar n

My point of view is

-->12V to 35V is given as Power supply, this is given
because to switch on the transmitter

-->4 to 20mA is produced depends upon the pressure and flow
applied on the transmitter and it is given to the
microprocessor and it convert it into mA

-->Then the 4 to 20mA is converted into 1 to 5V using 250
Ohm Resistance and is given to DCS.

-->The main thing for using mA is, there won't be any
wastage in Current, but if you use V,there will be voltage
drop due to cables.

Thank you
Rakesh Kumar.N
INSTRUMENTATION ENGINEER

How does electro magnetic pump works ?

1 Answers   IGCAR,

---

what is proportional & what is proportional band

1 Answers   Nimir,

---

what is temperature compensation?

1 Answers  

---

Draw block diagram BOILER COMBUSTION loop & Explain

1 Answers   Bajaj Hindusthan, Exxaro,

---

Emergency Shutdown Systems/ Plant Shutdown System.

0 Answers   CCIE,

---

Can you explain drawbacks between P,I,D & PID controller

1 Answers   JSW, Priya Cement, TPL,

---

Is SmartPlant Instrumentation taking advantage of the quality assurance procedures within Intergraph?

1 Answers  

---

What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?

0 Answers   Process Control Technologies,

---

What is Predictive Maintenance

0 Answers  

---

please tell me how to convert double acting ytc positioner yt-1200 into single acting ytc positioner ?

1 Answers  

---

We have a Yokogawa Micro-XL DCS, which is having around 300 I/O, but whenever there is any wire gets grounded in field, the 24v supply to all loops gets dipped & all the indications at DCS goes to IOP(shows input open), at present we have fixed 500mA fuses in all the lines but which does not working. Does it required to replace with lower amps fuse, then how much or is there any other solution for this.

2 Answers  

---

why we set -10 volt in vibration sensor output,why not +10 volt

3 Answers   GE, Honeywell, LLM,

---