meraj


{ City } jubail
< Country > saudi
* Profession * instrumen supervisor
User No # 107877
Total Questions Posted # 10
Total Answers Posted # 1

Total Answers Posted for My Questions # 5
Total Views for My Questions # 31010

Users Marked my Answers as Correct # 0
Users Marked my Answers as Wrong # 0
Questions / { meraj }
Questions Answers Category Views Company eMail

What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows   very argent : my mai is merajalam143545@yahoo.com

Samsung,

Instrumentation 2031

What is the live zero and dead zero

Samsung,

2 Instrumentation 7280

Why rtd  out put is ohm how create the ohm 

Samsung,

1 Instrumentation 5238

What is the difference between ff transmitter and non ff transmitter

Samsung,

Instrumentation 1974

What is the diffrence between ff tx and non ff tx

Jindal, Rosemount,

Instrumentation 2452

How does work A temperature valve or fv control valve in process plz brief me

Jindal,

Instrumentation 1917

Why rdt and thermocouple both give different output .and one things more, how to generate  ohm or mili volt  plz mail me merajalam143545@yahoo.com

Samsung,

Instrumentation 2314

 why Fahrenheit unit of moistur analyzer transmitter

Infosys, Samsung,

Instrumentation 1785

Anybody can tell me  how to convert mmHg2o /psi to scfm  please give me formula of conversion

Samsung,

Instrumentation 1488

What is the reverse action and direct action

Samsung,

2 Instrumentation 4531



Answers / { meraj }

Question { 8994 }

why we use 250 ohms across HART CALIBRATOR DURING
CALIBRATION OF TRANSMITTER


Answer

 I think 250 ohm use for drop the crrunt of circuit .If  I  use above the 250 ohm  i can't get sufficient output crrunt.one thinks more that if you increase or decrease the ohm as well as output crrunt  will be increase dearead . that's why i can't  exceeds resistance value 

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