Interested to Buy Any Domain ? << Click Here >> for more details...
i have one absolute pressure transmitter for the range is
-400mmhg to 400mmhg. If i do the zero trim at atmosphere the
transmitter should be give 4ma or 12ma? which one is correct?
- 2 Answers
- 7872 Views
- I also Faced
- E-Mail Answers
Answer Posted / banerjeenandan
Your transmitter has a range of 800mmhg. The LRV is -400mmhg
and URV is +400mmhg. So at atmosphere you will get 12mA. all
the time, because atmosphere is Zero gauge pressure
(perfectly mid value in between the LRV and URV).
If you do zero trim at atmosphere, it will take "ZERO" with
the atmospheric pressure. The range of the transmitter will
not change. The range will remain 800mmhg. But your LRV will
change to 0mmhg and URV will change to +800mmhg. So in that
case, without any process connection it will give 4mA.
| Is This Answer Correct ? | 25 Yes | 1 No |
Post New Answer View All Answers
Make Heater Process Logic.
(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
what is scale factor of proximitor & unit of the vibration.
What is the difference between modbus,fieldbus & profibus
this site is owned by an nonsense
control panel design guidelines
can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.
the 3 most common transmitter protocol being in refinery or qatar gas and aramco.
How to Calibrate Flammable gas detector in field
what does it mean an active front end in vfd plz explain it briefly
what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...
Good evening all I need a small favour regarding reliance paper i wanna probable sample papers(e&i) of reliance. if any of u have any idea about dis then plz mail me back.i belongs to electronics and instrumentation engg.so i need e&i papers. thanking u....
how to calibrate Necleuonic level transmitter.?
Tell me the field calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter.
why orfice is not used for main steam flow calculation
