Interested to Buy Any Domain ? << Click Here >> for more details...
when we are using HART COMMUNICATOR why we are using 250 ohm
resistance while using HART COMMUNICATOR.
- 7 Answers
- 18958 Views
- I also Faced
- E-Mail Answers
Answer Posted / sivakumar d
Its Ohms's Law:
We need output: 4 to 20mA. corresponding voltage level is 1-5V
when Min Transmitter O/P
I=V/R =1/250 =0.004 =4mA
When Max Tranmitter O/P
I=V/R =5/250=0.02 =20mA.
So to get Standard Current Signal We need 250 ohms resistor.
| Is This Answer Correct ? | 15 Yes | 3 No |
Post New Answer View All Answers
Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?
Pl send the model question paper of mahagenco account officer post
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com
whatis range of marcury filled tempereture gague
hi! i want to know about mpse exam.
Explain about the leakage class of the control valves
PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS
What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?
In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?
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...
Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.
Explain types of valves?
Which type of pressure can be measured by these elements?
What are different types of cable?
