when we are using HART COMMUNICATOR why we are using 250 ohm
resistance while using HART COMMUNICATOR.
- 7 Answers
- 16636 Views
- I also Faced
- E-Mail Answers
Answer Posted / imran
According to Ohm Law V=IR .we need resistance for voltage
drop across Hart as current is there to energize Hart
circuit.and due to hart hat low impedence w.r.t XTMR .DCS
Cards hav builtin resistance that s why no need for
resistance in field
| Is This Answer Correct ? | 2 Yes | 8 No |
Post New Answer View All Answers
please send me the inteview questions in IOCL
what is interface level measurement.who can calibrate interface level measurement transmitter online
What are different types of valves?
HOW TO CALCULATE ACCURACY OF AN INSTRUMENT. WHICH IS COMPITABLE FOR USE.
while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?
what is 24vdc live and dry supply
Explain Gas Turbine startup and shutdown sequences
I have energy meter for educational project having 0.5s class but my friend need 0.2s class meter , which one is good for that purpose and what is the actual difference of that two classes , need very easy example also.??
KAlman filter code for two dimension?
we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.
give eg of how I/P is used in control loops
What is hp & mp seperator .& what is its working principle ?
Capacitance, resistance ( colour coding ), parallel & series circuits.
how can leve transmetter calibate in feild .and also put cv and flow plz .....
any one can send me instrumentation previous interview papers? I prepare for MNC Company Interviews? my mail id- Rakesh.Golla@dodsaldxb.ae , and another mail rakesh.gvk@gmail.com
